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2020-05-04  5:10:23 0 [Note] Plugin 'FEEDBACK' is disabled.

2020-05-04  5:10:23 0 [Warning] Could not open mysql.plugin table. Some options may be missing from the help text

mysqld  Ver 10.4.12-MariaDB-1:10.4.12+maria~bionic for debian-linux-gnu on x86_64 (mariadb.org binary distribution)

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.



Starts the MariaDB database server.



Usage: mysqld [OPTIONS]



Default options are read from the following files in the given order:

/etc/my.cnf /etc/mysql/my.cnf ~/.my.cnf 

The following groups are read: mysqld server mysqld-10.4 mariadb mariadb-10.4 mariadbd mariadbd-10.4 client-server galera

The following options may be given as the first argument:

--print-defaults          Print the program argument list and exit.

--no-defaults             Don't read default options from any option file.

The following specify which files/extra groups are read (specified before remaining options):

--defaults-file=#         Only read default options from the given file #.

--defaults-extra-file=#   Read this file after the global files are read.

--defaults-group-suffix=# Additionally read default groups with # appended as a suffix.



  --allow-suspicious-udfs 

                      Allows use of UDFs consisting of only one symbol xxx()

                      without corresponding xxx_init() or xxx_deinit(). That

                      also means that one can load any function from any

                      library, for example exit() from libc.so

  --alter-algorithm[=name] 

                      Specify the alter table algorithm. One of: DEFAULT, COPY,

                      INPLACE, NOCOPY, INSTANT

  --analyze-sample-percentage=# 

                      Percentage of rows from the table ANALYZE TABLE will

                      sample to collect table statistics. Set to 0 to let

                      MariaDB decide what percentage of rows to sample.

  -a, --ansi          Use ANSI SQL syntax instead of MySQL syntax. This mode

                      will also set transaction isolation level 'serializable'.

  --aria-block-size=# Block size to be used for Aria index pages.

  --aria-checkpoint-interval=# 

                      Interval between tries to do an automatic checkpoints. In

                      seconds; 0 means 'no automatic checkpoints' which makes

                      sense only for testing.

  --aria-checkpoint-log-activity=# 

                      Number of bytes that the transaction log has to grow

                      between checkpoints before a new checkpoint is written to

                      the log.

  --aria-encrypt-tables 

                      Encrypt tables (only for tables with ROW_FORMAT=PAGE

                      (default) and not FIXED/DYNAMIC)

  --aria-force-start-after-recovery-failures=# 

                      Number of consecutive log recovery failures after which

                      logs will be automatically deleted to cure the problem; 0

                      (the default) disables the feature.

  --aria-group-commit=name 

                      Specifies Aria group commit mode. Possible values are

                      "none" (no group commit), "hard" (with waiting to actual

                      commit), "soft" (no wait for commit (DANGEROUS!!!))

  --aria-group-commit-interval=# 

                      Interval between commite in microseconds (1/1000000c). 0

                      stands for no waiting for other threads to come and do a

                      commit in "hard" mode and no sync()/commit at all in

                      "soft" mode.  Option has only an effect if

                      aria_group_commit is used

  --aria-log-dir-path=name 

                      Path to the directory where to store transactional log

  --aria-log-file-size=# 

                      Limit for transaction log size

  --aria-log-purge-type=name 

                      Specifies how Aria transactional log will be purged. One

                      of: immediate, external, at_flush

  --aria-max-sort-file-size=# 

                      Don't use the fast sort index method to created index if

                      the temporary file would get bigger than this.

  --aria-page-checksum 

                      Maintain page checksums (can be overridden per table with

                      PAGE_CHECKSUM clause in CREATE TABLE)

                      (Defaults to on; use --skip-aria-page-checksum to disable.)

  --aria-pagecache-age-threshold=# 

                      This characterizes the number of hits a hot block has to

                      be untouched until it is considered aged enough to be

                      downgraded to a warm block. This specifies the percentage

                      ratio of that number of hits to the total number of

                      blocks in the page cache.

  --aria-pagecache-buffer-size=# 

                      The size of the buffer used for index blocks for Aria

                      tables. Increase this to get better index handling (for

                      all reads and multiple writes) to as much as you can

                      afford.

  --aria-pagecache-division-limit=# 

                      The minimum percentage of warm blocks in key cache

  --aria-pagecache-file-hash-size=# 

                      Number of hash buckets for open and changed files.  If

                      you have a lot of Aria files open you should increase

                      this for faster flush of changes. A good value is

                      probably 1/10 of number of possible open Aria files.

  --aria-recover-options[=name] 

                      Specifies how corrupted tables should be automatically

                      repaired. Any combination of: NORMAL, BACKUP, FORCE, 

                      QUICK, OFF

  --aria-repair-threads=# 

                      Number of threads to use when repairing Aria tables. The

                      value of 1 disables parallel repair.

  --aria-sort-buffer-size=# 

                      The buffer that is allocated when sorting the index when

                      doing a REPAIR or when creating indexes with CREATE INDEX

                      or ALTER TABLE.

  --aria-stats-method=name 

                      Specifies how Aria index statistics collection code

                      should treat NULLs. One of: nulls_unequal, nulls_equal, 

                      nulls_ignored

  --aria-sync-log-dir=name 

                      Controls syncing directory after log file growth and new

                      file creation. One of: NEVER, NEWFILE, ALWAYS

  --auto-increment-increment[=#] 

                      Auto-increment columns are incremented by this

  --auto-increment-offset[=#] 

                      Offset added to Auto-increment columns. Used when

                      auto-increment-increment != 1

  --autocommit        Set default value for autocommit (0 or 1)

                      (Defaults to on; use --skip-autocommit to disable.)

  --automatic-sp-privileges 

                      Creating and dropping stored procedures alters ACLs

                      (Defaults to on; use --skip-automatic-sp-privileges to disable.)

  --back-log=#        The number of outstanding connection requests MariaDB can

                      have. This comes into play when the main MariaDB thread

                      gets very many connection requests in a very short time

                      (Automatically configured unless set explicitly)

  -b, --basedir=name  Path to installation directory. All paths are usually

                      resolved relative to this

  --big-tables        Old variable, which if set to 1, allows large result sets

                      by saving all temporary sets to disk, avoiding 'table

                      full' errors. No longer needed, as the server now handles

                      this automatically. sql_big_tables is a synonym.

  --bind-address=name IP address to bind to.

  --binlog-annotate-row-events 

                      Tells the master to annotate RBR events with the

                      statement that caused these events

                      (Defaults to on; use --skip-binlog-annotate-row-events to disable.)

  --binlog-cache-size=# 

                      The size of the transactional cache for updates to

                      transactional engines for the binary log. If you often

                      use transactions containing many statements, you can

                      increase this to get more performance

  --binlog-checksum=name 

                      Type of BINLOG_CHECKSUM_ALG. Include checksum for log

                      events in the binary log. One of: NONE, CRC32

  --binlog-commit-wait-count=# 

                      If non-zero, binlog write will wait at most

                      binlog_commit_wait_usec microseconds for at least this

                      many commits to queue up for group commit to the binlog.

                      This can reduce I/O on the binlog and provide increased

                      opportunity for parallel apply on the slave, but too high

                      a value will decrease commit throughput.

  --binlog-commit-wait-usec=# 

                      Maximum time, in microseconds, to wait for more commits

                      to queue up for binlog group commit. Only takes effect if

                      the value of binlog_commit_wait_count is non-zero.

  --binlog-direct-non-transactional-updates 

                      Causes updates to non-transactional engines using

                      statement format to be written directly to binary log.

                      Before using this option make sure that there are no

                      dependencies between transactional and non-transactional

                      tables such as in the statement INSERT INTO t_myisam

                      SELECT * FROM t_innodb; otherwise, slaves may diverge

                      from the master.

  --binlog-do-db=name Tells the master it should log updates for the specified

                      database, and exclude all others not explicitly

                      mentioned.

  --binlog-file-cache-size=# 

                      The size of file cache for the binary log

  --binlog-format=name 

                      What form of binary logging the master will use: either

                      ROW for row-based binary logging, STATEMENT for

                      statement-based binary logging, or MIXED. MIXED is

                      statement-based binary logging except for those

                      statements where only row-based is correct: those which

                      involve user-defined functions (i.e. UDFs) or the UUID()

                      function; for those, row-based binary logging is

                      automatically used.

  --binlog-ignore-db=name 

                      Tells the master that updates to the given database

                      should not be logged to the binary log.

  --binlog-optimize-thread-scheduling 

                      Run fast part of group commit in a single thread, to

                      optimize kernel thread scheduling. On by default. Disable

                      to run each transaction in group commit in its own

                      thread, which can be slower at very high concurrency.

                      This option is mostly for testing one algorithm versus

                      the other, and it should not normally be necessary to

                      change it.

                      (Defaults to on; use --skip-binlog-optimize-thread-scheduling to disable.)

  --binlog-row-event-max-size=# 

                      The maximum size of a row-based binary log event in

                      bytes. Rows will be grouped into events smaller than this

                      size if possible. The value has to be a multiple of 256.

  --binlog-row-image=name 

                      Controls whether rows should be logged in 'FULL',

                      'NOBLOB' or 'MINIMAL' formats. 'FULL', means that all

                      columns in the before and after image are logged.

                      'NOBLOB', means that mysqld avoids logging blob columns

                      whenever possible (eg, blob column was not changed or is

                      not part of primary key). 'MINIMAL', means that a PK

                      equivalent (PK columns or full row if there is no PK in

                      the table) is logged in the before image, and only

                      changed columns are logged in the after image. (Default:

                      FULL).

  --binlog-stmt-cache-size=# 

                      The size of the statement cache for updates to

                      non-transactional engines for the binary log. If you

                      often use statements updating a great number of rows, you

                      can increase this to get more performance.

  --bootstrap         Used by mysql installation scripts.

  --bulk-insert-buffer-size=# 

                      Size of tree cache used in bulk insert optimisation. Note

                      that this is a limit per thread!

  --character-set-client-handshake 

                      Don't ignore client side character set value sent during

                      handshake.

                      (Defaults to on; use --skip-character-set-client-handshake to disable.)

  --character-set-filesystem=name 

                      Set the filesystem character set.

  -C, --character-set-server=name 

                      Set the default character set.

  --character-sets-dir=name 

                      Directory where character sets are

  -r, --chroot=name   Chroot mysqld daemon during startup.

  --collation-server=name 

                      Set the default collation.

  --column-compression-threshold=# 

                      Minimum column data length eligible for compression

  --column-compression-zlib-level=# 

                      zlib compression level (1 gives best speed, 9 gives best

                      compression)

  --column-compression-zlib-strategy=name 

                      The strategy parameter is used to tune the compression

                      algorithm. Use the value DEFAULT_STRATEGY for normal

                      data, FILTERED for data produced by a filter (or

                      predictor), HUFFMAN_ONLY to force Huffman encoding only

                      (no string match), or RLE to limit match distances to one

                      (run-length encoding). Filtered data consists mostly of

                      small values with a somewhat random distribution. In this

                      case, the compression algorithm is tuned to compress them

                      better. The effect of FILTERED is to force more Huffman

                      coding and less string matching; it is somewhat

                      intermediate between DEFAULT_STRATEGY and HUFFMAN_ONLY.

                      RLE is designed to be almost as fast as HUFFMAN_ONLY, but

                      give better compression for PNG image data. The strategy

                      parameter only affects the compression ratio but not the

                      correctness of the compressed output even if it is not

                      set appropriately. FIXED prevents the use of dynamic

                      Huffman codes, allowing for a simpler decoder for special

                      applications.

  --column-compression-zlib-wrap 

                      Generate zlib header and trailer and compute adler32

                      check value. It can be used with storage engines that

                      don't provide data integrity verification to detect data

                      corruption.

  --completion-type=name 

                      The transaction completion type. One of: NO_CHAIN, CHAIN,

                      RELEASE

  --concurrent-insert[=name] 

                      Use concurrent insert with MyISAM. One of: NEVER, AUTO, 

                      ALWAYS

  --connect-timeout=# The number of seconds the mysqld server is waiting for a

                      connect packet before responding with 'Bad handshake'

  --console           Write error output on screen; don't remove the console

                      window on windows.

  --core-file         Write core on errors.

  -h, --datadir=name  Path to the database root directory

  --date-format=name  The DATE format (ignored)

  --datetime-format=name 

                      The DATETIME format (ignored)

  --deadlock-search-depth-long=# 

                      Long search depth for the two-step deadlock detection

  --deadlock-search-depth-short=# 

                      Short search depth for the two-step deadlock detection

  --deadlock-timeout-long=# 

                      Long timeout for the two-step deadlock detection (in

                      microseconds)

  --deadlock-timeout-short=# 

                      Short timeout for the two-step deadlock detection (in

                      microseconds)

  -#, --debug[=name]  Built in DBUG debugger. Disabled in this build.

  --debug-abort-slave-event-count=# 

                      Option used by mysql-test for debugging and testing of

                      replication.

  --debug-disconnect-slave-event-count=# 

                      Option used by mysql-test for debugging and testing of

                      replication.

  -T, --debug-exit-info[=#] 

                      Used for debugging. Use at your own risk.

  --debug-gdb         Set up signals usable for debugging.

  --debug-max-binlog-dump-events=# 

                      Option used by mysql-test for debugging and testing of

                      replication.

  --debug-no-sync     Disables system sync calls. Only for running tests or

                      debugging!

  --debug-no-thread-alarm 

                      Disable system thread alarm calls. Disabling it may be

                      useful in debugging or testing, never do it in production

  --debug-sporadic-binlog-dump-fail 

                      Option used by mysql-test for debugging and testing of

                      replication.

  --default-password-lifetime=# 

                      This defines the global password expiration policy. 0

                      means automatic password expiration is disabled. If the

                      value is a positive integer N, the passwords must be

                      changed every N days. This behavior can be overridden

                      using the password expiration options in ALTER USER.

  --default-regex-flags=name 

                      Default flags for the regex library. Any combination of: 

                      DOTALL, DUPNAMES, EXTENDED, EXTRA, MULTILINE, UNGREEDY

  --default-storage-engine=name 

                      The default storage engine for new tables

  --default-time-zone=name 

                      Set the default time zone.

  --default-tmp-storage-engine=name 

                      The default storage engine for user-created temporary

                      tables

  --default-week-format=# 

                      The default week format used by WEEK() functions

  --delay-key-write[=name] 

                      Specifies how MyISAM tables handles CREATE TABLE

                      DELAY_KEY_WRITE. If set to ON, the default, any DELAY KEY

                      WRITEs are honored. The key buffer is then flushed only

                      when the table closes, speeding up writes. MyISAM tables

                      should be automatically checked upon startup in this

                      case, and --external locking should not be used, as it

                      can lead to index corruption. If set to OFF, DELAY KEY

                      WRITEs are ignored, while if set to ALL, all new opened

                      tables are treated as if created with DELAY KEY WRITEs

                      enabled.

  --delayed-insert-limit=# 

                      After inserting delayed_insert_limit rows, the INSERT

                      DELAYED handler will check if there are any SELECT

                      statements pending. If so, it allows these to execute

                      before continuing.

  --delayed-insert-timeout=# 

                      How long a INSERT DELAYED thread should wait for INSERT

                      statements before terminating

  --delayed-queue-size=# 

                      What size queue (in rows) should be allocated for

                      handling INSERT DELAYED. If the queue becomes full, any

                      client that does INSERT DELAYED will wait until there is

                      room in the queue again

  --des-key-file=name Load keys for des_encrypt() and des_encrypt from given

                      file.

  --disconnect-on-expired-password 

                      This variable controls how the server handles clients

                      that are not aware of the sandbox mode. If enabled, the

                      server disconnects the client, otherwise the server puts

                      the client in a sandbox mode.

  --div-precision-increment=# 

                      Precision of the result of '/' operator will be increased

                      on that value

  --encrypt-binlog    Encrypt binary logs (including relay logs)

  --encrypt-tmp-disk-tables 

                      Encrypt temporary on-disk tables (created as part of

                      query execution)

  --encrypt-tmp-files Encrypt temporary files (created for filesort, binary log

                      cache, etc)

  --enforce-storage-engine=name 

                      Force the use of a storage engine for new tables

  --eq-range-index-dive-limit=# 

                      The optimizer will use existing index statistics instead

                      of doing index dives for equality ranges if the number of

                      equality ranges for the index is larger than or equal to

                      this number. If set to 0, index dives are always used.

  --event-scheduler[=name] 

                      Enable the event scheduler. Possible values are ON, OFF,

                      and DISABLED (keep the event scheduler completely

                      deactivated, it cannot be activated run-time)

  --expensive-subquery-limit=# 

                      The maximum number of rows a subquery may examine in

                      order to be executed during optimization and used for

                      constant optimization

  --expire-logs-days=# 

                      If non-zero, binary logs will be purged after

                      expire_logs_days days; possible purges happen at startup

                      and at binary log rotation

  --explicit-defaults-for-timestamp 

                      This option causes CREATE TABLE to create all TIMESTAMP

                      columns as NULL with DEFAULT NULL attribute, Without this

                      option, TIMESTAMP columns are NOT NULL and have implicit

                      DEFAULT clauses.

  --external-locking  Use system (external) locking (disabled by default). 

                      With this option enabled you can run myisamchk to test

                      (not repair) tables while the MySQL server is running.

                      Disable with --skip-external-locking.

  --extra-max-connections=# 

                      The number of connections on extra-port

  --extra-port=#      Extra port number to use for tcp connections in a

                      one-thread-per-connection manner. 0 means don't use

                      another port

  --feedback[=name]   Enable or disable FEEDBACK plugin. One of: ON, OFF, FORCE

                      (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --feedback-http-proxy=name 

                      Proxy server host:port.

  --feedback-send-retry-wait=# 

                      Wait this many seconds before retrying a failed send.

  --feedback-send-timeout=# 

                      Timeout (in seconds) for the sending the report.

  --feedback-url=name Space separated URLs to send the feedback report to.

  --feedback-user-info=name 

                      User specified string that will be included in the

                      feedback report.

  --flashback         Setup the server to use flashback. This enables binary

                      log in row mode and will enable extra logging for DDL's

                      needed by flashback feature

  --flush             Flush MyISAM tables to disk between SQL commands

  --flush-time=#      A dedicated thread is created to flush all tables at the

                      given interval

  --ft-boolean-syntax=name 

                      List of operators for MATCH ... AGAINST ( ... IN BOOLEAN

                      MODE)

  --ft-max-word-len=# The maximum length of the word to be included in a

                      FULLTEXT index. Note: FULLTEXT indexes must be rebuilt

                      after changing this variable

  --ft-min-word-len=# The minimum length of the word to be included in a

                      FULLTEXT index. Note: FULLTEXT indexes must be rebuilt

                      after changing this variable

  --ft-query-expansion-limit=# 

                      Number of best matches to use for query expansion

  --ft-stopword-file=name 

                      Use stopwords from this file instead of built-in list

  --gdb               Set up signals usable for debugging. Deprecated, use

                      --debug-gdb instead.

  --general-log       Log connections and queries to a table or log file.

                      Defaults logging to a file 'hostname'.log or a table

                      mysql.general_logif --log-output=TABLE is used.

  --general-log-file=name 

                      Log connections and queries to given file

  --getopt-prefix-matching 

                      Recognize command-line options by their unambiguos

                      prefixes.

                      (Defaults to on; use --skip-getopt-prefix-matching to disable.)

  --group-concat-max-len=# 

                      The maximum length of the result of function

                      GROUP_CONCAT()

  --gtid-cleanup-batch-size=# 

                      Normally does not need tuning. How many old rows must

                      accumulate in the mysql.gtid_slave_pos table before a

                      background job will be run to delete them. Can be

                      increased to reduce number of commits if using many

                      different engines with --gtid_pos_auto_engines, or to

                      reduce CPU overhead if using a huge number of different

                      gtid_domain_ids. Can be decreased to reduce number of old

                      rows in the table.

  --gtid-domain-id=#  Used with global transaction ID to identify logically

                      independent replication streams. When events can

                      propagate through multiple parallel paths (for example

                      multiple masters), each independent source server must

                      use a distinct domain_id. For simple tree-shaped

                      replication topologies, it can be left at its default, 0.

  --gtid-ignore-duplicates 

                      When set, different master connections in multi-source

                      replication are allowed to receive and process event

                      groups with the same GTID (when using GTID mode). Only

                      one will be applied, any others will be ignored. Within a

                      given replication domain, just the sequence number will

                      be used to decide whether a given GTID has been already

                      applied; this means it is the responsibility of the user

                      to ensure that GTID sequence numbers are strictly

                      increasing.

  --gtid-pos-auto-engines=name 

                      List of engines for which to automatically create a

                      mysql.gtid_slave_pos_ENGINE table, if a transaction using

                      that engine is replicated. This can be used to avoid

                      introducing cross-engine transactions, if engines are

                      used different from that used by table

                      mysql.gtid_slave_pos

  --gtid-strict-mode  Enforce strict seq_no ordering of events in the binary

                      log. Slave stops with an error if it encounters an event

                      that would cause it to generate an out-of-order binlog if

                      executed.

  -?, --help          Display this help and exit.

  --histogram-size=#  Number of bytes used for a histogram. If set to 0, no

                      histograms are created by ANALYZE.

  --histogram-type=name 

                      Specifies type of the histograms created by ANALYZE.

                      Possible values are: SINGLE_PREC_HB - single precision

                      height-balanced, DOUBLE_PREC_HB - double precision

                      height-balanced.

  --host-cache-size=# How many host names should be cached to avoid resolving.

                      (Automatically configured unless set explicitly)

  --idle-readonly-transaction-timeout=# 

                      The number of seconds the server waits for read-only idle

                      transaction

  --idle-transaction-timeout=# 

                      The number of seconds the server waits for idle

                      transaction

  --idle-write-transaction-timeout=# 

                      The number of seconds the server waits for write idle

                      transaction

  --ignore-builtin-innodb 

                      Disable initialization of builtin InnoDB plugin

  --ignore-db-dirs=name 

                      Specifies a directory to add to the ignore list when

                      collecting database names from the datadir. Put a blank

                      argument to reset the list accumulated so far.

  --in-predicate-conversion-threshold=# 

                      The minimum number of scalar elements in the value list

                      of IN predicate that triggers its conversion to IN

                      subquery. Set to 0 to disable the conversion.

  --init-connect=name Command(s) that are executed for each new connection

                      (unless the user has SUPER privilege)

  --init-file=name    Read SQL commands from this file at startup

  --init-rpl-role=name 

                      Set the replication role. One of: MASTER, SLAVE

  --init-slave=name   Command(s) that are executed by a slave server each time

                      the SQL thread starts

  --innodb[=name]     Enable or disable InnoDB plugin. One of: ON, OFF, FORCE

                      (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-adaptive-flushing 

                      Attempt flushing dirty pages to avoid IO bursts at

                      checkpoints.

                      (Defaults to on; use --skip-innodb-adaptive-flushing to disable.)

  --innodb-adaptive-flushing-lwm=# 

                      Percentage of log capacity below which no adaptive

                      flushing happens.

  --innodb-adaptive-hash-index 

                      Enable InnoDB adaptive hash index (enabled by default). 

                      Disable with --skip-innodb-adaptive-hash-index.

                      (Defaults to on; use --skip-innodb-adaptive-hash-index to disable.)

  --innodb-adaptive-hash-index-parts[=#] 

                      Number of InnoDB Adaptive Hash Index Partitions (default

                      8)

  --innodb-adaptive-max-sleep-delay=# 

                      The upper limit of the sleep delay in usec. Value of 0

                      disables it.

  --innodb-autoextend-increment=# 

                      Data file autoextend increment in megabytes

  --innodb-autoinc-lock-mode=# 

                      The AUTOINC lock modes supported by InnoDB: 0 => Old

                      style AUTOINC locking (for backward compatibility); 1 =>

                      New style AUTOINC locking; 2 => No AUTOINC locking

                      (unsafe for SBR)

  --innodb-background-scrub-data-check-interval=# 

                      check if spaces needs scrubbing every

                      innodb_background_scrub_data_check_interval seconds

  --innodb-background-scrub-data-compressed 

                      Enable scrubbing of compressed data by background threads

                      (same as encryption_threads)

  --innodb-background-scrub-data-interval=# 

                      scrub spaces that were last scrubbed longer than 

                      innodb_background_scrub_data_interval seconds ago

  --innodb-background-scrub-data-uncompressed 

                      Enable scrubbing of uncompressed data by background

                      threads (same as encryption_threads)

  --innodb-buf-dump-status-frequency=# 

                      A number between [0, 100] that tells how oftern buffer

                      pool dump status in percentages should be printed. E.g.

                      10 means that buffer pool dump status is printed when

                      every 10% of number of buffer pool pages are dumped.

                      Default is 0 (only start and end status is printed).

  --innodb-buffer-page[=name] 

                      Enable or disable INNODB_BUFFER_PAGE plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-buffer-page-lru[=name] 

                      Enable or disable INNODB_BUFFER_PAGE_LRU plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-buffer-pool-chunk-size=# 

                      Size of a single memory chunk within each buffer pool

                      instance for resizing buffer pool. Online buffer pool

                      resizing happens at this granularity. 0 means disable

                      resizing buffer pool.

  --innodb-buffer-pool-dump-at-shutdown 

                      Dump the buffer pool into a file named

                      @@innodb_buffer_pool_filename

                      (Defaults to on; use --skip-innodb-buffer-pool-dump-at-shutdown to disable.)

  --innodb-buffer-pool-dump-now 

                      Trigger an immediate dump of the buffer pool into a file

                      named @@innodb_buffer_pool_filename

  --innodb-buffer-pool-dump-pct=# 

                      Dump only the hottest N% of each buffer pool, defaults to

                      25

  --innodb-buffer-pool-filename=name 

                      Filename to/from which to dump/load the InnoDB buffer

                      pool

  --innodb-buffer-pool-instances=# 

                      Number of buffer pool instances, set to higher value on

                      high-end machines to increase scalability

  --innodb-buffer-pool-load-abort 

                      Abort a currently running load of the buffer pool

  --innodb-buffer-pool-load-at-startup 

                      Load the buffer pool from a file named

                      @@innodb_buffer_pool_filename

                      (Defaults to on; use --skip-innodb-buffer-pool-load-at-startup to disable.)

  --innodb-buffer-pool-load-now 

                      Trigger an immediate load of the buffer pool from a file

                      named @@innodb_buffer_pool_filename

  --innodb-buffer-pool-size=# 

                      The size of the memory buffer InnoDB uses to cache data

                      and indexes of its tables.

  --innodb-buffer-pool-stats[=name] 

                      Enable or disable INNODB_BUFFER_POOL_STATS plugin. One

                      of: ON, OFF, FORCE (don't start if the plugin fails to

                      load), FORCE_PLUS_PERMANENT (like FORCE, but the plugin

                      can not be uninstalled).

  --innodb-change-buffer-max-size=# 

                      Maximum on-disk size of change buffer in terms of

                      percentage of the buffer pool.

  --innodb-change-buffering=name 

                      Buffer changes to secondary indexes.. One of: none, 

                      inserts, deletes, changes, purges, all

  --innodb-checksum-algorithm=name 

                      The algorithm InnoDB uses for page checksumming. Possible

                      values are FULL_CRC32 for new files, always use CRC-32C;

                      for old, see CRC32 below; STRICT_FULL_CRC32 for new

                      files, always use CRC-32C; for old, see STRICT_CRC32

                      below; CRC32 write crc32, allow any of the other

                      checksums to match when reading; STRICT_CRC32 write

                      crc32, do not allow other algorithms to match when

                      reading; INNODB write a software calculated checksum,

                      allow any other checksums to match when reading;

                      STRICT_INNODB write a software calculated checksum, do

                      not allow other algorithms to match when reading; NONE

                      write a constant magic number, do not do any checksum

                      verification when reading (same as innodb_checksums=OFF);

                      STRICT_NONE write a constant magic number, do not allow

                      values other than that magic number when reading; Files

                      updated when this option is set to crc32 or strict_crc32

                      will not be readable by MariaDB versions older than

                      10.0.4; new files created with full_crc32 are readable by

                      MariaDB 10.4.3+

  --innodb-checksums  DEPRECATED. Use innodb_checksum_algorithm=NONE instead of

                      setting this to OFF. Enable InnoDB checksums validation

                      (enabled by default). Disable with

                      --skip-innodb-checksums.

                      (Defaults to on; use --skip-innodb-checksums to disable.)

  --innodb-cmp[=name] Enable or disable INNODB_CMP plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-cmp-per-index[=name] 

                      Enable or disable INNODB_CMP_PER_INDEX plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-cmp-per-index-enabled 

                      Enable INFORMATION_SCHEMA.innodb_cmp_per_index, may have

                      negative impact on performance (off by default)

  --innodb-cmp-per-index-reset[=name] 

                      Enable or disable INNODB_CMP_PER_INDEX_RESET plugin. One

                      of: ON, OFF, FORCE (don't start if the plugin fails to

                      load), FORCE_PLUS_PERMANENT (like FORCE, but the plugin

                      can not be uninstalled).

  --innodb-cmp-reset[=name] 

                      Enable or disable INNODB_CMP_RESET plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-cmpmem[=name] 

                      Enable or disable INNODB_CMPMEM plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-cmpmem-reset[=name] 

                      Enable or disable INNODB_CMPMEM_RESET plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-commit-concurrency=# 

                      Helps in performance tuning in heavily concurrent

                      environments.

  --innodb-compression-algorithm[=name] 

                      Compression algorithm used on page compression. One of:

                      none, zlib, lz4, lzo, lzma, or bzip2

  --innodb-compression-default 

                      Is compression the default for new tables

  --innodb-compression-failure-threshold-pct[=#] 

                      If the compression failure rate of a table is greater

                      than this number more padding is added to the pages to

                      reduce the failures. A value of zero implies no padding

  --innodb-compression-level=# 

                      Compression level used for zlib compression.  0 is no

                      compression, 1 is fastest, 9 is best compression and

                      default is 6.

  --innodb-compression-pad-pct-max[=#] 

                      Percentage of empty space on a data page that can be

                      reserved to make the page compressible.

  --innodb-concurrency-tickets=# 

                      Number of times a thread is allowed to enter InnoDB

                      within the same SQL query after it has once got the

                      ticket

  --innodb-data-file-path=name 

                      Path to individual files and their sizes.

  --innodb-data-home-dir=name 

                      The common part for InnoDB table spaces.

  --innodb-deadlock-detect 

                      Enable/disable InnoDB deadlock detector (default ON). if

                      set to OFF, deadlock detection is skipped, and we rely on

                      innodb_lock_wait_timeout in case of deadlock.

                      (Defaults to on; use --skip-innodb-deadlock-detect to disable.)

  --innodb-default-encryption-key-id=# 

                      Default encryption key id used for table encryption.

  --innodb-default-row-format=name 

                      The default ROW FORMAT for all innodb tables created

                      without explicit ROW_FORMAT. Possible values are

                      REDUNDANT, COMPACT, and DYNAMIC. The ROW_FORMAT value

                      COMPRESSED is not allowed. One of: redundant, compact, 

                      dynamic

  --innodb-defragment Enable/disable InnoDB defragmentation (default FALSE).

                      When set to FALSE, all existing defragmentation will be

                      paused. And new defragmentation command will fail.Paused

                      defragmentation commands will resume when this variable

                      is set to true again.

  --innodb-defragment-fill-factor=# 

                      A number between [0.7, 1] that tells defragmentation how

                      full it should fill a page. Default is 0.9. Number below

                      0.7 won't make much sense.This variable, together with

                      innodb_defragment_fill_factor_n_recs, is introduced so

                      defragmentation won't pack the page too full and cause

                      page split on the next insert on every page. The variable

                      indicating more defragmentation gain is the one

                      effective.

  --innodb-defragment-fill-factor-n-recs=# 

                      How many records of space defragmentation should leave on

                      the page. This variable, together with

                      innodb_defragment_fill_factor, is introduced so

                      defragmentation won't pack the page too full and cause

                      page split on the next insert on every page. The variable

                      indicating more defragmentation gain is the one

                      effective.

  --innodb-defragment-frequency=# 

                      Do not defragment a single index more than this number of

                      time per second.This controls the number of time

                      defragmentation thread can request X_LOCK on an index.

                      Defragmentation thread will check whether

                      1/defragment_frequency (s) has passed since it worked on

                      this index last time, and put the index back to the queue

                      if not enough time has passed. The actual frequency can

                      only be lower than this given number.

  --innodb-defragment-n-pages=# 

                      Number of pages considered at once when merging multiple

                      pages to defragment

  --innodb-defragment-stats-accuracy=# 

                      How many defragment stats changes there are before the

                      stats are written to persistent storage. Set to 0 meaning

                      disable defragment stats tracking.

  --innodb-disable-sort-file-cache 

                      Whether to disable OS system file cache for sort I/O

  --innodb-doublewrite 

                      Enable InnoDB doublewrite buffer (enabled by default).

                      Disable with --skip-innodb-doublewrite.

                      (Defaults to on; use --skip-innodb-doublewrite to disable.)

  --innodb-encrypt-log 

                      Enable redo log encryption

  --innodb-encrypt-tables[=name] 

                      Enable encryption for tables. Don't forget to enable

                      --innodb-encrypt-log too. One of: OFF, ON, FORCE

  --innodb-encrypt-temporary-tables 

                      Enrypt the temporary table data.

  --innodb-encryption-rotate-key-age=# 

                      Key rotation - re-encrypt in background all pages that

                      were encrypted with a key that many (or more) versions

                      behind. Value 0 indicates that key rotation is disabled.

  --innodb-encryption-rotation-iops=# 

                      Use this many iops for background key rotation

  --innodb-encryption-threads=# 

                      Number of threads performing background key rotation and

                      scrubbing

  --innodb-fast-shutdown[=#] 

                      Speeds up the shutdown process of the InnoDB storage

                      engine. Possible values are 0, 1 (faster), 2

                      (crash-like), 3 (fastest clean).

  --innodb-fatal-semaphore-wait-threshold=# 

                      Maximum number of seconds that semaphore times out in

                      InnoDB.

  --innodb-file-format=name 

                      Deprecated parameter with no effect.

  --innodb-file-per-table 

                      Stores each InnoDB table to an .ibd file in the database

                      dir.

                      (Defaults to on; use --skip-innodb-file-per-table to disable.)

  --innodb-fill-factor=# 

                      Percentage of B-tree page filled during bulk insert

  --innodb-flush-log-at-timeout[=#] 

                      Write and flush logs every (n) second.

  --innodb-flush-log-at-trx-commit[=#] 

                      Controls the durability/speed trade-off for commits. Set

                      to 0 (write and flush redo log to disk only once per

                      second), 1 (flush to disk at each commit), 2 (write to

                      log at commit but flush to disk only once per second) or

                      3 (flush to disk at prepare and at commit, slower and

                      usually redundant). 1 and 3 guarantees that after a

                      crash, committed transactions will not be lost and will

                      be consistent with the binlog and other transactional

                      engines. 2 can get inconsistent and lose transactions if

                      there is a power failure or kernel crash but not if

                      mysqld crashes. 0 has no guarantees in case of crash. 0

                      and 2 can be faster than 1 or 3.

  --innodb-flush-method=name 

                      With which method to flush data.. One of: fsync, O_DSYNC,

                      littlesync, nosync, O_DIRECT, O_DIRECT_NO_FSYNC

  --innodb-flush-neighbors[=#] 

                      Set to 0 (don't flush neighbors from buffer pool), 1

                      (flush contiguous neighbors from buffer pool) or 2 (flush

                      neighbors from buffer pool), when flushing a block

  --innodb-flush-sync Allow IO bursts at the checkpoints ignoring io_capacity

                      setting.

                      (Defaults to on; use --skip-innodb-flush-sync to disable.)

  --innodb-flushing-avg-loops=# 

                      Number of iterations over which the background flushing

                      is averaged.

  --innodb-force-load-corrupted 

                      Force InnoDB to load metadata of corrupted table.

  --innodb-force-primary-key 

                      Do not allow to create table without primary key (off by

                      default)

  --innodb-force-recovery=# 

                      Helps to save your data in case the disk image of the

                      database becomes corrupt.

  --innodb-ft-aux-table=name 

                      FTS internal auxiliary table to be checked

  --innodb-ft-being-deleted[=name] 

                      Enable or disable INNODB_FT_BEING_DELETED plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-ft-cache-size=# 

                      InnoDB Fulltext search cache size in bytes

  --innodb-ft-config[=name] 

                      Enable or disable INNODB_FT_CONFIG plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-ft-default-stopword[=name] 

                      Enable or disable INNODB_FT_DEFAULT_STOPWORD plugin. One

                      of: ON, OFF, FORCE (don't start if the plugin fails to

                      load), FORCE_PLUS_PERMANENT (like FORCE, but the plugin

                      can not be uninstalled).

  --innodb-ft-deleted[=name] 

                      Enable or disable INNODB_FT_DELETED plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-ft-enable-diag-print 

                      Whether to enable additional FTS diagnostic printout 

  --innodb-ft-enable-stopword 

                      Create FTS index with stopword.

                      (Defaults to on; use --skip-innodb-ft-enable-stopword to disable.)

  --innodb-ft-index-cache[=name] 

                      Enable or disable INNODB_FT_INDEX_CACHE plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-ft-index-table[=name] 

                      Enable or disable INNODB_FT_INDEX_TABLE plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-ft-max-token-size=# 

                      InnoDB Fulltext search maximum token size in characters

  --innodb-ft-min-token-size=# 

                      InnoDB Fulltext search minimum token size in characters

  --innodb-ft-num-word-optimize[=#] 

                      InnoDB Fulltext search number of words to optimize for

                      each optimize table call 

  --innodb-ft-result-cache-limit=# 

                      InnoDB Fulltext search query result cache limit in bytes

  --innodb-ft-server-stopword-table[=name] 

                      The user supplied stopword table name.

  --innodb-ft-sort-pll-degree=# 

                      InnoDB Fulltext search parallel sort degree, will round

                      up to nearest power of 2 number

  --innodb-ft-total-cache-size=# 

                      Total memory allocated for InnoDB Fulltext Search cache

  --innodb-ft-user-stopword-table[=name] 

                      User supplied stopword table name, effective in the

                      session level.

  --innodb-idle-flush-pct=# 

                      Up to what percentage of dirty pages should be flushed

                      when innodb finds it has spare resources to do so.

  --innodb-immediate-scrub-data-uncompressed 

                      Enable scrubbing of data

  --innodb-io-capacity=# 

                      Number of IOPs the server can do. Tunes the background IO

                      rate

  --innodb-io-capacity-max=# 

                      Limit to which innodb_io_capacity can be inflated.

  --innodb-large-prefix=name 

                      Deprecated parameter with no effect.

  --innodb-lock-schedule-algorithm=name 

                      The algorithm Innodb uses for deciding which locks to

                      grant next when a lock is released. Possible values are

                      FCFS grant the locks in First-Come-First-Served order;

                      VATS use the Variance-Aware-Transaction-Scheduling

                      algorithm, which uses an Eldest-Transaction-First

                      heuristic.. One of: fcfs, vats

  --innodb-lock-wait-timeout=# 

                      Timeout in seconds an InnoDB transaction may wait for a

                      lock before being rolled back. Values above 100000000

                      disable the timeout.

  --innodb-lock-waits[=name] 

                      Enable or disable INNODB_LOCK_WAITS plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-locks[=name] 

                      Enable or disable INNODB_LOCKS plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-locks-unsafe-for-binlog 

                      DEPRECATED. This option may be removed in future

                      releases. Please use READ COMMITTED transaction isolation

                      level instead. Force InnoDB to not use next-key locking,

                      to use only row-level locking.

  --innodb-log-buffer-size=# 

                      The size of the buffer which InnoDB uses to write log to

                      the log files on disk.

  --innodb-log-checksums 

                      Whether to compute and require checksums for InnoDB redo

                      log blocks

                      (Defaults to on; use --skip-innodb-log-checksums to disable.)

  --innodb-log-compressed-pages 

                      Enables/disables the logging of entire compressed page

                      images. InnoDB logs the compressed pages to prevent

                      corruption if the zlib compression algorithm changes.

                      When turned OFF, InnoDB will assume that the zlib

                      compression algorithm doesn't change.

                      (Defaults to on; use --skip-innodb-log-compressed-pages to disable.)

  --innodb-log-file-size=# 

                      Size of each log file in a log group.

  --innodb-log-files-in-group=# 

                      Number of log files in the log group. InnoDB writes to

                      the files in a circular fashion.

  --innodb-log-group-home-dir=name 

                      Path to InnoDB log files.

  --innodb-log-optimize-ddl 

                      Reduce redo logging when natively creating indexes or

                      rebuilding tables. Setting this OFF avoids delay due to

                      page flushing and allows concurrent backup.

                      (Defaults to on; use --skip-innodb-log-optimize-ddl to disable.)

  --innodb-log-write-ahead-size=# 

                      Redo log write ahead unit size to avoid read-on-write, it

                      should match the OS cache block IO size

  --innodb-lru-scan-depth=# 

                      How deep to scan LRU to keep it clean

  --innodb-max-dirty-pages-pct=# 

                      Percentage of dirty pages allowed in bufferpool.

  --innodb-max-dirty-pages-pct-lwm=# 

                      Percentage of dirty pages at which flushing kicks in.

  --innodb-max-purge-lag=# 

                      Desired maximum length of the purge queue (0 = no limit)

  --innodb-max-purge-lag-delay=# 

                      Maximum delay of user threads in micro-seconds

  --innodb-max-undo-log-size[=#] 

                      Desired maximum UNDO tablespace size in bytes

  --innodb-metrics[=name] 

                      Enable or disable INNODB_METRICS plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-monitor-disable=name 

                      Turn off a monitor counter

  --innodb-monitor-enable=name 

                      Turn on a monitor counter

  --innodb-monitor-reset=name 

                      Reset a monitor counter

  --innodb-monitor-reset-all=name 

                      Reset all values for a monitor counter

  --innodb-mutexes[=name] 

                      Enable or disable INNODB_MUTEXES plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-old-blocks-pct=# 

                      Percentage of the buffer pool to reserve for 'old'

                      blocks.

  --innodb-old-blocks-time=# 

                      Move blocks to the 'new' end of the buffer pool if the

                      first access was at least this many milliseconds ago. The

                      timeout is disabled if 0.

  --innodb-online-alter-log-max-size=# 

                      Maximum modification log file size for online index

                      creation

  --innodb-open-files=# 

                      How many files at the maximum InnoDB keeps open at the

                      same time.

  --innodb-optimize-fulltext-only 

                      Only optimize the Fulltext index of the table

  --innodb-page-cleaners=# 

                      Page cleaner threads can be from 1 to 64. Default is 4.

  --innodb-page-size[=#] 

                      Page size to use for all InnoDB tablespaces.

  --innodb-prefix-index-cluster-optimization 

                      Enable prefix optimization to sometimes avoid cluster

                      index lookups.

  --innodb-print-all-deadlocks 

                      Print all deadlocks to MariaDB error log (off by default)

  --innodb-purge-batch-size[=#] 

                      Number of UNDO log pages to purge in one batch from the

                      history list.

  --innodb-purge-rseg-truncate-frequency[=#] 

                      Dictates rate at which UNDO records are purged. Value N

                      means purge rollback segment(s) on every Nth iteration of

                      purge invocation

  --innodb-purge-threads[=#] 

                      Purge threads can be from 1 to 32. Default is 4.

  --innodb-random-read-ahead 

                      Whether to use read ahead for random access within an

                      extent.

  --innodb-read-ahead-threshold=# 

                      Number of pages that must be accessed sequentially for

                      InnoDB to trigger a readahead.

  --innodb-read-io-threads=# 

                      Number of background read I/O threads in InnoDB.

  --innodb-read-only  Start InnoDB in read only mode (off by default)

  --innodb-replication-delay=# 

                      Replication thread delay (ms) on the slave server if

                      innodb_thread_concurrency is reached (0 by default)

  --innodb-rollback-on-timeout 

                      Roll back the complete transaction on lock wait timeout,

                      for 4.x compatibility (disabled by default)

  --innodb-rollback-segments[=#] 

                      Number of undo logs to use (deprecated).

  --innodb-scrub-log  Enable background redo log (ib_logfile0, ib_logfile1...)

                      scrubbing

  --innodb-scrub-log-speed[=#] 

                      Background redo log scrubbing speed in bytes/sec

  --innodb-sort-buffer-size=# 

                      Memory buffer size for index creation

  --innodb-spin-wait-delay[=#] 

                      Maximum delay between polling for a spin lock (4 by

                      default)

  --innodb-stats-auto-recalc 

                      InnoDB automatic recalculation of persistent statistics

                      enabled for all tables unless overridden at table level

                      (automatic recalculation is only done when InnoDB decides

                      that the table has changed too much and needs a new

                      statistics)

                      (Defaults to on; use --skip-innodb-stats-auto-recalc to disable.)

  --innodb-stats-include-delete-marked 

                      Include delete marked records when calculating persistent

                      statistics

  --innodb-stats-method=name 

                      Specifies how InnoDB index statistics collection code

                      should treat NULLs. Possible values are NULLS_EQUAL

                      (default), NULLS_UNEQUAL and NULLS_IGNORED. One of: 

                      nulls_equal, nulls_unequal, nulls_ignored

  --innodb-stats-modified-counter=# 

                      The number of rows modified before we calculate new

                      statistics (default 0 = current limits)

  --innodb-stats-on-metadata 

                      Enable statistics gathering for metadata commands such as

                      SHOW TABLE STATUS for tables that use transient

                      statistics (off by default)

  --innodb-stats-persistent 

                      InnoDB persistent statistics enabled for all tables

                      unless overridden at table level

                      (Defaults to on; use --skip-innodb-stats-persistent to disable.)

  --innodb-stats-persistent-sample-pages=# 

                      The number of leaf index pages to sample when calculating

                      persistent statistics (by ANALYZE, default 20)

  --innodb-stats-sample-pages=# 

                      Deprecated, use innodb_stats_transient_sample_pages

                      instead

  --innodb-stats-traditional 

                      Enable traditional statistic calculation based on number

                      of configured pages (default true)

                      (Defaults to on; use --skip-innodb-stats-traditional to disable.)

  --innodb-stats-transient-sample-pages=# 

                      The number of leaf index pages to sample when calculating

                      transient statistics (if persistent statistics are not

                      used, default 8)

  --innodb-status-file 

                      Enable SHOW ENGINE INNODB STATUS output in the

                      innodb_status.<pid> file

  --innodb-status-output 

                      Enable InnoDB monitor output to the error log.

  --innodb-status-output-locks 

                      Enable InnoDB lock monitor output to the error log.

                      Requires innodb_status_output=ON.

  --innodb-strict-mode 

                      Use strict mode when evaluating create options.

                      (Defaults to on; use --skip-innodb-strict-mode to disable.)

  --innodb-sync-array-size[=#] 

                      Size of the mutex/lock wait array.

  --innodb-sync-spin-loops=# 

                      Count of spin-loop rounds in InnoDB mutexes (30 by

                      default)

  --innodb-sys-columns[=name] 

                      Enable or disable INNODB_SYS_COLUMNS plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-datafiles[=name] 

                      Enable or disable INNODB_SYS_DATAFILES plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-fields[=name] 

                      Enable or disable INNODB_SYS_FIELDS plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-foreign[=name] 

                      Enable or disable INNODB_SYS_FOREIGN plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-foreign-cols[=name] 

                      Enable or disable INNODB_SYS_FOREIGN_COLS plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-indexes[=name] 

                      Enable or disable INNODB_SYS_INDEXES plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-semaphore-waits[=name] 

                      Enable or disable INNODB_SYS_SEMAPHORE_WAITS plugin. One

                      of: ON, OFF, FORCE (don't start if the plugin fails to

                      load), FORCE_PLUS_PERMANENT (like FORCE, but the plugin

                      can not be uninstalled).

  --innodb-sys-tables[=name] 

                      Enable or disable INNODB_SYS_TABLES plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-tablespaces[=name] 

                      Enable or disable INNODB_SYS_TABLESPACES plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-tablestats[=name] 

                      Enable or disable INNODB_SYS_TABLESTATS plugin. One of:

                      ON, OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-sys-virtual[=name] 

                      Enable or disable INNODB_SYS_VIRTUAL plugin. One of: ON,

                      OFF, FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-table-locks 

                      Enable InnoDB locking in LOCK TABLES

                      (Defaults to on; use --skip-innodb-table-locks to disable.)

  --innodb-tablespaces-encryption[=name] 

                      Enable or disable INNODB_TABLESPACES_ENCRYPTION plugin.

                      One of: ON, OFF, FORCE (don't start if the plugin fails

                      to load), FORCE_PLUS_PERMANENT (like FORCE, but the

                      plugin can not be uninstalled).

  --innodb-tablespaces-scrubbing[=name] 

                      Enable or disable INNODB_TABLESPACES_SCRUBBING plugin.

                      One of: ON, OFF, FORCE (don't start if the plugin fails

                      to load), FORCE_PLUS_PERMANENT (like FORCE, but the

                      plugin can not be uninstalled).

  --innodb-temp-data-file-path=name 

                      Path to files and their sizes making temp-tablespace.

  --innodb-thread-concurrency=# 

                      Helps in performance tuning in heavily concurrent

                      environments. Sets the maximum number of threads allowed

                      inside InnoDB. Value 0 will disable the thread

                      throttling.

  --innodb-thread-sleep-delay=# 

                      Time of innodb thread sleeping before joining InnoDB

                      queue (usec). Value 0 disable a sleep

  --innodb-tmpdir[=name] 

                      Directory for temporary non-tablespace files.

  --innodb-trx[=name] Enable or disable INNODB_TRX plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --innodb-undo-directory=name 

                      Directory where undo tablespace files live, this path can

                      be absolute.

  --innodb-undo-log-truncate 

                      Enable or Disable Truncate of UNDO tablespace.

  --innodb-undo-logs[=#] 

                      Number of undo logs to use.

  --innodb-undo-tablespaces=# 

                      Number of undo tablespaces to use.

  --innodb-use-atomic-writes 

                      Enable atomic writes, instead of using the doublewrite

                      buffer, for files on devices that supports atomic writes.

                      To use this option one must use innodb_file_per_table=1,

                      innodb_flush_method=O_DIRECT. This option only works on

                      Linux with either FusionIO cards using the directFS

                      filesystem or with Shannon cards using any file system.

                      (Defaults to on; use --skip-innodb-use-atomic-writes to disable.)

  --innodb-use-native-aio 

                      Use native AIO if supported on this platform.

                      (Defaults to on; use --skip-innodb-use-native-aio to disable.)

  --innodb-write-io-threads=# 

                      Number of background write I/O threads in InnoDB.

  --interactive-timeout=# 

                      The number of seconds the server waits for activity on an

                      interactive connection before closing it

  --join-buffer-size=# 

                      The size of the buffer that is used for joins

  --join-buffer-space-limit=# 

                      The limit of the space for all join buffers used by a

                      query

  --join-cache-level=# 

                      Controls what join operations can be executed with join

                      buffers. Odd numbers are used for plain join buffers

                      while even numbers are used for linked buffers

  --keep-files-on-create 

                      Don't overwrite stale .MYD and .MYI even if no directory

                      is specified

  --key-buffer-size=# The size of the buffer used for index blocks for MyISAM

                      tables. Increase this to get better index handling (for

                      all reads and multiple writes) to as much as you can

                      afford

  --key-cache-age-threshold=# 

                      This characterizes the number of hits a hot block has to

                      be untouched until it is considered aged enough to be

                      downgraded to a warm block. This specifies the percentage

                      ratio of that number of hits to the total number of

                      blocks in key cache

  --key-cache-block-size=# 

                      The default size of key cache blocks

  --key-cache-division-limit=# 

                      The minimum percentage of warm blocks in key cache

  --key-cache-file-hash-size=# 

                      Number of hash buckets for open and changed files.  If

                      you have a lot of MyISAM files open you should increase

                      this for faster flush of changes. A good value is

                      probably 1/10 of number of possible open MyISAM files.

  --key-cache-segments=# 

                      The number of segments in a key cache

  -L, --language=name Client error messages in given language. May be given as

                      a full path. Deprecated. Use --lc-messages-dir instead.

  --large-pages       Enable support for large pages

  --lc-messages=name  Set the language used for the error messages.

  -L, --lc-messages-dir=name 

                      Directory where error messages are

  --lc-time-names=name 

                      Set the language used for the month names and the days of

                      the week.

  --local-infile      Enable LOAD DATA LOCAL INFILE

                      (Defaults to on; use --skip-local-infile to disable.)

  --lock-wait-timeout=# 

                      Timeout in seconds to wait for a lock before returning an

                      error.

  --log-basename=name Basename for all log files and the .pid file. This sets

                      all log file names at once (in 'datadir') and is normally

                      the only option you need for specifying log files. Sets

                      names for --log-bin, --log-bin-index, --relay-log,

                      --relay-log-index, --general-log-file,

                      --log-slow-query-log-file, --log-error-file, and

                      --pid-file

  --log-bin[=name]    Log update queries in binary format. Optional argument

                      should be name for binary log. If not given

                      'datadir'/'log-basename'-bin or 'datadir'/mysql-bin will

                      be used (the later if --log-basename is not specified).

                      We strongly recommend to use either --log-basename or

                      specify a filename to ensure that replication doesn't

                      stop if the real hostname of the computer changes.

  --log-bin-compress  Whether the binary log can be compressed

  --log-bin-compress-min-len[=#] 

                      Minimum length of sql statement(in statement mode) or

                      record(in row mode)that can be compressed.

  --log-bin-index=name 

                      File that holds the names for last binary log files.

  --log-bin-trust-function-creators 

                      If set to FALSE (the default), then when --log-bin is

                      used, creation of a stored function (or trigger) is

                      allowed only to users having the SUPER privilege and only

                      if this stored function (trigger) may not break binary

                      logging. Note that if ALL connections to this server

                      ALWAYS use row-based binary logging, the security issues

                      do not exist and the binary logging cannot break, so you

                      can safely set this to TRUE

  --log-disabled-statements=name 

                      Don't log certain types of statements to general log. Any

                      combination of: slave, sp

  --log-error[=name]  Log errors to file (instead of stdout).  If file name is

                      not specified then 'datadir'/'log-basename'.err or the

                      'pid-file' path with extension .err is used

  --log-isam[=name]   Log all MyISAM changes to file.

  --log-output=name   How logs should be written. Any combination of: NONE, 

                      FILE, TABLE

  --log-queries-not-using-indexes 

                      Log queries that are executed without benefit of any

                      index to the slow log if it is open. Same as

                      log_slow_filter='not_using_index'

  --log-short-format  Don't log extra information to update and slow-query

                      logs.

  --log-slave-updates Tells the slave to log the updates from the slave thread

                      to the binary log. You will need to turn it on if you

                      plan to daisy-chain the slaves.

  --log-slow-admin-statements 

                      Log slow OPTIMIZE, ANALYZE, ALTER and other

                      administrative statements to the slow log if it is open. 

                      Resets or sets the option 'admin' in

                      log_slow_disabled_statements

  --log-slow-disabled-statements=name 

                      Don't log certain types of statements to slow log. Any

                      combination of: admin, call, slave, sp

  --log-slow-filter=name 

                      Log only certain types of queries to the slow log. If

                      variable empty alll kind of queries are logged.  All

                      types are bound by slow_query_time, except

                      'not_using_index' which is always logged if enabled. Any

                      combination of: admin, filesort, filesort_on_disk, 

                      filesort_priority_queue, full_join, full_scan, 

                      not_using_index, query_cache, query_cache_miss, tmp_table,

                      tmp_table_on_disk

  --log-slow-rate-limit=# 

                      Write to slow log every #th slow query. Set to 1 to log

                      everything. Increase it to reduce the size of the slow or

                      the performance impact of slow logging

  --log-slow-slave-statements 

                      Log slow statements executed by slave thread to the slow

                      log if it is open. Resets or sets the option 'slave' in

                      log_slow_disabled_statements

  --log-slow-verbosity=name 

                      Verbosity level for the slow log. Any combination of: 

                      innodb, query_plan, explain

  --log-tc=name       Path to transaction coordinator log (used for

                      transactions that affect more than one storage engine,

                      when binary log is disabled).

  --log-tc-size=#     Size of transaction coordinator log.

  -W, --log-warnings[=#] 

                      Log some not critical warnings to the general log

                      file.Value can be between 0 and 11. Higher values mean

                      more verbosity

  --long-query-time=# Log all queries that have taken more than long_query_time

                      seconds to execute to the slow query log file. The

                      argument will be treated as a decimal value with

                      microsecond precision

  --low-priority-updates 

                      INSERT/DELETE/UPDATE has lower priority than selects

  --lower-case-table-names[=#] 

                      If set to 1 table names are stored in lowercase on disk

                      and table names will be case-insensitive.  Should be set

                      to 2 if you are using a case insensitive file system

  --master-info-file=name 

                      The location and name of the file that remembers the

                      master and where the I/O replication thread is in the

                      master's binlogs. Defaults to master.info

  --master-retry-count=# 

                      The number of tries the slave will make to connect to the

                      master before giving up.

  --master-verify-checksum 

                      Force checksum verification of logged events in the

                      binary log before sending them to slaves or printing them

                      in the output of SHOW BINLOG EVENTS

  --max-allowed-packet=# 

                      Max packet length to send to or receive from the server

  --max-binlog-cache-size=# 

                      Sets the total size of the transactional cache

  --max-binlog-size=# Binary log will be rotated automatically when the size

                      exceeds this value.

  --max-binlog-stmt-cache-size=# 

                      Sets the total size of the statement cache

  --max-connect-errors=# 

                      If there is more than this number of interrupted

                      connections from a host this host will be blocked from

                      further connections

  --max-connections=# The number of simultaneous clients allowed

  --max-delayed-threads=# 

                      Don't start more than this number of threads to handle

                      INSERT DELAYED statements. If set to zero INSERT DELAYED

                      will be not used

  --max-digest-length=# 

                      Maximum length considered for digest text.

  --max-error-count=# Max number of errors/warnings to store for a statement

  --max-heap-table-size=# 

                      Don't allow creation of heap tables bigger than this

  --max-join-size=#   Joins that are probably going to read more than

                      max_join_size records return an error

  --max-length-for-sort-data=# 

                      Max number of bytes in sorted records

  --max-long-data-size=# 

                      The maximum BLOB length to send to server from

                      mysql_send_long_data API. Deprecated option; use

                      max_allowed_packet instead.

  --max-password-errors=# 

                      If there is more than this number of failed connect

                      attempts due to invalid password, user will be blocked

                      from further connections until FLUSH_PRIVILEGES.

  --max-prepared-stmt-count=# 

                      Maximum number of prepared statements in the server

  --max-recursive-iterations[=#] 

                      Maximum number of iterations when executing recursive

                      queries

  --max-relay-log-size=# 

                      relay log will be rotated automatically when the size

                      exceeds this value.  If 0 at startup, it's set to

                      max_binlog_size

  --max-rowid-filter-size=# 

                      The maximum size of the container of a rowid filter

  --max-seeks-for-key=# 

                      Limit assumed max number of seeks when looking up rows

                      based on a key

  --max-session-mem-used=# 

                      Amount of memory a single user session is allowed to

                      allocate. This limits the value of the session variable

                      MEM_USED

  --max-sort-length=# The number of bytes to use when sorting BLOB or TEXT

                      values (only the first max_sort_length bytes of each

                      value are used; the rest are ignored)

  --max-sp-recursion-depth[=#] 

                      Maximum stored procedure recursion depth

  --max-statement-time=# 

                      A query that has taken more than max_statement_time

                      seconds will be aborted. The argument will be treated as

                      a decimal value with microsecond precision. A value of 0

                      (default) means no timeout

  --max-tmp-tables=#  Unused, will be removed.

  --max-user-connections=# 

                      The maximum number of active connections for a single

                      user (0 = no limit)

  --max-write-lock-count=# 

                      After this many write locks, allow some read locks to run

                      in between

  --memlock           Lock mysqld in memory.

  --metadata-locks-cache-size=# 

                      Unused

  --metadata-locks-hash-instances=# 

                      Unused

  --min-examined-row-limit=# 

                      Don't write queries to slow log that examine fewer rows

                      than that

  --mrr-buffer-size=# Size of buffer to use when using MRR with range access

  --multi-range-count=# 

                      Ignored. Use mrr_buffer_size instead

  --myisam-block-size=# 

                      Block size to be used for MyISAM index pages

  --myisam-data-pointer-size=# 

                      Default pointer size to be used for MyISAM tables

  --myisam-max-sort-file-size=# 

                      Don't use the fast sort index method to created index if

                      the temporary file would get bigger than this

  --myisam-mmap-size=# 

                      Restricts the total memory used for memory mapping of

                      MySQL tables

  --myisam-recover-options[=name] 

                      Specifies how corrupted tables should be automatically

                      repaired. Any combination of: DEFAULT, BACKUP, FORCE, 

                      QUICK, BACKUP_ALL, OFF

  --myisam-repair-threads=# 

                      If larger than 1, when repairing a MyISAM table all

                      indexes will be created in parallel, with one thread per

                      index. The value of 1 disables parallel repair

  --myisam-sort-buffer-size=# 

                      The buffer that is allocated when sorting the index when

                      doing a REPAIR or when creating indexes with CREATE INDEX

                      or ALTER TABLE

  --myisam-stats-method=name 

                      Specifies how MyISAM index statistics collection code

                      should treat NULLs. Possible values of name are

                      NULLS_UNEQUAL (default behavior for 4.1 and later),

                      NULLS_EQUAL (emulate 4.0 behavior), and NULLS_IGNORED

  --myisam-use-mmap   Use memory mapping for reading and writing MyISAM tables

  --mysql56-temporal-format 

                      Use MySQL-5.6 (instead of MariaDB-5.3) format for TIME,

                      DATETIME, TIMESTAMP columns.

                      (Defaults to on; use --skip-mysql56-temporal-format to disable.)

  --net-buffer-length=# 

                      Buffer length for TCP/IP and socket communication

  --net-read-timeout=# 

                      Number of seconds to wait for more data from a connection

                      before aborting the read

  --net-retry-count=# If a read on a communication port is interrupted, retry

                      this many times before giving up

  --net-write-timeout=# 

                      Number of seconds to wait for a block to be written to a

                      connection before aborting the write

  --old               Use compatible behavior from previous MariaDB version.

                      See also --old-mode

  --old-alter-table[=name] 

                      Alias for alter_algorithm. Deprecated. Use

                      --alter-algorithm instead.. One of: DEFAULT, COPY, 

                      INPLACE, NOCOPY, INSTANT

  --old-mode=name     Used to emulate old behavior from earlier MariaDB or

                      MySQL versions. Any combination of: 

                      NO_DUP_KEY_WARNINGS_WITH_IGNORE, NO_PROGRESS_INFO, 

                      ZERO_DATE_TIME_CAST

  --old-passwords     Use old password encryption method (needed for 4.0 and

                      older clients)

  --old-style-user-limits 

                      Enable old-style user limits (before 5.0.3, user

                      resources were counted per each user+host vs. per

                      account).

  --open-files-limit=# 

                      If this is not 0, then mysqld will use this value to

                      reserve file descriptors to use with setrlimit(). If this

                      value is 0 or autoset then mysqld will reserve

                      max_connections*5 or max_connections + table_cache*2

                      (whichever is larger) number of file descriptors

                      (Automatically configured unless set explicitly)

  --optimizer-prune-level=# 

                      Controls the heuristic(s) applied during query

                      optimization to prune less-promising partial plans from

                      the optimizer search space. Meaning: 0 - do not apply any

                      heuristic, thus perform exhaustive search; 1 - prune

                      plans based on number of retrieved rows

  --optimizer-search-depth=# 

                      Maximum depth of search performed by the query optimizer.

                      Values larger than the number of relations in a query

                      result in better query plans, but take longer to compile

                      a query. Values smaller than the number of tables in a

                      relation result in faster optimization, but may produce

                      very bad query plans. If set to 0, the system will

                      automatically pick a reasonable value.

  --optimizer-selectivity-sampling-limit=# 

                      Controls number of record samples to check condition

                      selectivity

  --optimizer-switch=name 

                      Fine-tune the optimizer behavior. Takes a comma-separated

                      list of option=value pairs, where value is on, off, or

                      default, and options are: index_merge, index_merge_union,

                      index_merge_sort_union, index_merge_intersection, 

                      index_merge_sort_intersection, engine_condition_pushdown,

                      index_condition_pushdown, derived_merge, 

                      derived_with_keys, firstmatch, loosescan, materialization,

                      in_to_exists, semijoin, partial_match_rowid_merge, 

                      partial_match_table_scan, subquery_cache, mrr, 

                      mrr_cost_based, mrr_sort_keys, outer_join_with_cache, 

                      semijoin_with_cache, join_cache_incremental, 

                      join_cache_hashed, join_cache_bka, 

                      optimize_join_buffer_size, table_elimination, 

                      extended_keys, exists_to_in, orderby_uses_equalities, 

                      condition_pushdown_for_derived, split_materialized, 

                      condition_pushdown_for_subquery, rowid_filter, 

                      condition_pushdown_from_having

  --optimizer-trace=name 

                      Controls tracing of the Optimizer:

                      optimizer_trace=option=val[,option=val...], where option

                      is one of {enabled} and val is one of {on, off, default}

  --optimizer-trace-max-mem-size=# 

                      Maximum allowed size of an optimizer trace

  --optimizer-use-condition-selectivity=# 

                      Controls selectivity of which conditions the optimizer

                      takes into account to calculate cardinality of a partial

                      join when it searches for the best execution plan

                      Meaning: 1 - use selectivity of index backed range

                      conditions to calculate the cardinality of a partial join

                      if the last joined table is accessed by full table scan

                      or an index scan, 2 - use selectivity of index backed

                      range conditions to calculate the cardinality of a

                      partial join in any case, 3 - additionally always use

                      selectivity of range conditions that are not backed by

                      any index to calculate the cardinality of a partial join,

                      4 - use histograms to calculate selectivity of range

                      conditions that are not backed by any index to calculate

                      the cardinality of a partial join.5 - additionally use

                      selectivity of certain non-range predicates calculated on

                      record samples

  --partition[=name]  Enable or disable partition plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --performance-schema 

                      Enable the performance schema.

  --performance-schema-accounts-size=# 

                      Maximum number of instrumented user@host accounts. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-consumer-events-stages-current 

                      Default startup value for the events_stages_current

                      consumer.

  --performance-schema-consumer-events-stages-history 

                      Default startup value for the events_stages_history

                      consumer.

  --performance-schema-consumer-events-stages-history-long 

                      Default startup value for the events_stages_history_long

                      consumer.

  --performance-schema-consumer-events-statements-current 

                      Default startup value for the events_statements_current

                      consumer.

                      (Defaults to on; use --skip-performance-schema-consumer-events-statements-current to disable.)

  --performance-schema-consumer-events-statements-history 

                      Default startup value for the events_statements_history

                      consumer.

  --performance-schema-consumer-events-statements-history-long 

                      Default startup value for the

                      events_statements_history_long consumer.

  --performance-schema-consumer-events-waits-current 

                      Default startup value for the events_waits_current

                      consumer.

  --performance-schema-consumer-events-waits-history 

                      Default startup value for the events_waits_history

                      consumer.

  --performance-schema-consumer-events-waits-history-long 

                      Default startup value for the events_waits_history_long

                      consumer.

  --performance-schema-consumer-global-instrumentation 

                      Default startup value for the global_instrumentation

                      consumer.

                      (Defaults to on; use --skip-performance-schema-consumer-global-instrumentation to disable.)

  --performance-schema-consumer-statements-digest 

                      Default startup value for the statements_digest consumer.

                      (Defaults to on; use --skip-performance-schema-consumer-statements-digest to disable.)

  --performance-schema-consumer-thread-instrumentation 

                      Default startup value for the thread_instrumentation

                      consumer.

                      (Defaults to on; use --skip-performance-schema-consumer-thread-instrumentation to disable.)

  --performance-schema-digests-size=# 

                      Size of the statement digest. Use 0 to disable, -1 for

                      automated sizing.

  --performance-schema-events-stages-history-long-size=# 

                      Number of rows in EVENTS_STAGES_HISTORY_LONG. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-events-stages-history-size=# 

                      Number of rows per thread in EVENTS_STAGES_HISTORY. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-events-statements-history-long-size=# 

                      Number of rows in EVENTS_STATEMENTS_HISTORY_LONG. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-events-statements-history-size=# 

                      Number of rows per thread in EVENTS_STATEMENTS_HISTORY.

                      Use 0 to disable, -1 for automated sizing.

  --performance-schema-events-waits-history-long-size=# 

                      Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-events-waits-history-size=# 

                      Number of rows per thread in EVENTS_WAITS_HISTORY. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-hosts-size=# 

                      Maximum number of instrumented hosts. Use 0 to disable,

                      -1 for automated sizing.

  --performance-schema-instrument[=name] 

                      Default startup value for a performance schema

                      instrument.

  --performance-schema-max-cond-classes=# 

                      Maximum number of condition instruments.

  --performance-schema-max-cond-instances=# 

                      Maximum number of instrumented condition objects. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-max-digest-length=# 

                      Maximum length considered for digest text, when stored in

                      performance_schema tables.

  --performance-schema-max-file-classes=# 

                      Maximum number of file instruments.

  --performance-schema-max-file-handles=# 

                      Maximum number of opened instrumented files.

  --performance-schema-max-file-instances=# 

                      Maximum number of instrumented files. Use 0 to disable,

                      -1 for automated sizing.

  --performance-schema-max-mutex-classes=# 

                      Maximum number of mutex instruments.

  --performance-schema-max-mutex-instances=# 

                      Maximum number of instrumented MUTEX objects. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-max-rwlock-classes=# 

                      Maximum number of rwlock instruments.

  --performance-schema-max-rwlock-instances=# 

                      Maximum number of instrumented RWLOCK objects. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-max-socket-classes=# 

                      Maximum number of socket instruments.

  --performance-schema-max-socket-instances=# 

                      Maximum number of opened instrumented sockets. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-max-stage-classes=# 

                      Maximum number of stage instruments.

  --performance-schema-max-statement-classes=# 

                      Maximum number of statement instruments.

  --performance-schema-max-table-handles=# 

                      Maximum number of opened instrumented tables. Use 0 to

                      disable, -1 for automated sizing.

  --performance-schema-max-table-instances=# 

                      Maximum number of instrumented tables. Use 0 to disable,

                      -1 for automated sizing.

  --performance-schema-max-thread-classes=# 

                      Maximum number of thread instruments.

  --performance-schema-max-thread-instances=# 

                      Maximum number of instrumented threads. Use 0 to disable,

                      -1 for automated sizing.

  --performance-schema-session-connect-attrs-size=# 

                      Size of session attribute string buffer per thread. Use 0

                      to disable, -1 for automated sizing.

  --performance-schema-setup-actors-size=# 

                      Maximum number of rows in SETUP_ACTORS.

  --performance-schema-setup-objects-size=# 

                      Maximum number of rows in SETUP_OBJECTS.

  --performance-schema-users-size=# 

                      Maximum number of instrumented users. Use 0 to disable,

                      -1 for automated sizing.

  --pid-file=name     Pid file used by safe_mysqld

  --plugin-dir=name   Directory for plugins

  --plugin-load=name  Semicolon-separated list of plugins to load, where each

                      plugin is specified as ether a plugin_name=library_file

                      pair or only a library_file. If the latter case, all

                      plugins from a given library_file will be loaded.

  --plugin-load-add=name 

                      Optional semicolon-separated list of plugins to load.

                      This option adds to the list specified by --plugin-load

                      in an incremental way. It can be specified many times,

                      adding more plugins every time.

  --plugin-maturity=name 

                      The lowest desirable plugin maturity. Plugins less mature

                      than that will not be installed or loaded. One of: 

                      unknown, experimental, alpha, beta, gamma, stable

  -P, --port=#        Port number to use for connection or 0 to default to,

                      my.cnf, $MYSQL_TCP_PORT, /etc/services, built-in default

                      (3306), whatever comes first

  --port-open-timeout=# 

                      Maximum time in seconds to wait for the port to become

                      free. (Default: No wait).

  --preload-buffer-size=# 

                      The size of the buffer that is allocated when preloading

                      indexes

  --profiling-history-size=# 

                      Number of statements about which profiling information is

                      maintained. If set to 0, no profiles are stored. See SHOW

                      PROFILES.

  --progress-report-time=# 

                      Seconds between sending progress reports to the client

                      for time-consuming statements. Set to 0 to disable

                      progress reporting.

  --proxy-protocol-networks=name 

                      Enable proxy protocol for these source networks. The

                      syntax is a comma separated list of IPv4 and IPv6

                      networks. If the network doesn't contain mask, it is

                      considered to be a single host. "*" represents all

                      networks and must the only directive on the line. String

                      "localhost" represents non-TCP local connections (Unix

                      domain socket, Windows named pipe or shared memory).

  --query-alloc-block-size=# 

                      Allocation block size for query parsing and execution

  --query-cache-limit=# 

                      Don't cache results that are bigger than this

  --query-cache-min-res-unit=# 

                      The minimum size for blocks allocated by the query cache

  --query-cache-size=# 

                      The memory allocated to store results from old queries

  --query-cache-strip-comments 

                      Strip all comments from a query before storing it in the

                      query cache

  --query-cache-type=name 

                      OFF = Don't cache or retrieve results. ON = Cache all

                      results except SELECT SQL_NO_CACHE ... queries. DEMAND =

                      Cache only SELECT SQL_CACHE ... queries

  --query-cache-wlock-invalidate 

                      Invalidate queries in query cache on LOCK for write

  --query-prealloc-size=# 

                      Persistent buffer for query parsing and execution

  --range-alloc-block-size=# 

                      Allocation block size for storing ranges during

                      optimization

  --read-binlog-speed-limit=# 

                      Maximum speed(KB/s) to read binlog from master (0 = no

                      limit)

  --read-buffer-size=# 

                      Each thread that does a sequential scan allocates a

                      buffer of this size for each table it scans. If you do

                      many sequential scans, you may want to increase this

                      value

  --read-only         Make all non-temporary tables read-only, with the

                      exception for replication (slave) threads and users with

                      the SUPER privilege

  --read-rnd-buffer-size=# 

                      When reading rows in sorted order after a sort, the rows

                      are read through this buffer to avoid a disk seeks

  --relay-log=name    The location and name to use for relay logs.

  --relay-log-index=name 

                      The location and name to use for the file that keeps a

                      list of the last relay logs

  --relay-log-info-file=name 

                      The location and name of the file that remembers where

                      the SQL replication thread is in the relay logs.

  --relay-log-purge   if disabled - do not purge relay logs. if enabled - purge

                      them as soon as they are no more needed.

                      (Defaults to on; use --skip-relay-log-purge to disable.)

  --relay-log-recovery 

                      Enables automatic relay log recovery right after the

                      database startup, which means that the IO Thread starts

                      re-fetching from the master right after the last

                      transaction processed.

  --relay-log-space-limit=# 

                      Maximum space to use for all relay logs

  --replicate-annotate-row-events 

                      Tells the slave to write annotate rows events received

                      from the master to its own binary log. Ignored if

                      log_slave_updates is not set

                      (Defaults to on; use --skip-replicate-annotate-row-events to disable.)

  --replicate-do-db=name 

                      Tells the slave thread to restrict replication to the

                      specified database. To specify more than one database,

                      use the directive multiple times, once for each database.

                      Note that this will only work if you do not use

                      cross-database queries such as UPDATE some_db.some_table

                      SET foo='bar' while having selected a different or no

                      database. If you need cross database updates to work,

                      make sure you have 3.23.28 or later, and use

                      replicate-wild-do-table=db_name.%.

  --replicate-do-table=name 

                      Tells the slave thread to restrict replication to the

                      specified table. To specify more than one table, use the

                      directive multiple times, once for each table. This will

                      work for cross-database updates, in contrast to

                      replicate-do-db.

  --replicate-events-marked-for-skip=name 

                      Whether the slave should replicate events that were

                      created with @@skip_replication=1 on the master. Default

                      REPLICATE (no events are skipped). Other values are

                      FILTER_ON_SLAVE (events will be sent by the master but

                      ignored by the slave) and FILTER_ON_MASTER (events marked

                      with @@skip_replication=1 will be filtered on the master

                      and never be sent to the slave).

  --replicate-ignore-db=name 

                      Tells the slave thread to not replicate to the specified

                      database. To specify more than one database to ignore,

                      use the directive multiple times, once for each database.

                      This option will not work if you use cross database

                      updates. If you need cross database updates to work, make

                      sure you have 3.23.28 or later, and use

                      replicate-wild-ignore-table=db_name.%. 

  --replicate-ignore-table=name 

                      Tells the slave thread to not replicate to the specified

                      table. To specify more than one table to ignore, use the

                      directive multiple times, once for each table. This will

                      work for cross-database updates, in contrast to

                      replicate-ignore-db.

  --replicate-rewrite-db=name 

                      Updates to a database with a different name than the

                      original. Example:

                      replicate-rewrite-db=master_db_name->slave_db_name.

  --replicate-same-server-id 

                      In replication, if set to 1, do not skip events having

                      our server id. Default value is 0 (to break infinite

                      loops in circular replication). Can't be set to 1 if

                      --log-slave-updates is used.

  --replicate-wild-do-table=name 

                      Tells the slave thread to restrict replication to the

                      tables that match the specified wildcard pattern. To

                      specify more than one table, use the directive multiple

                      times, once for each table. This will work for

                      cross-database updates. Example:

                      replicate-wild-do-table=foo%.bar% will replicate only

                      updates to tables in all databases that start with foo

                      and whose table names start with bar.

  --replicate-wild-ignore-table=name 

                      Tells the slave thread to not replicate to the tables

                      that match the given wildcard pattern. To specify more

                      than one table to ignore, use the directive multiple

                      times, once for each table. This will work for

                      cross-database updates. Example:

                      replicate-wild-ignore-table=foo%.bar% will not do updates

                      to tables in databases that start with foo and whose

                      table names start with bar.

  --report-host=name  Hostname or IP of the slave to be reported to the master

                      during slave registration. Will appear in the output of

                      SHOW SLAVE HOSTS. Leave unset if you do not want the

                      slave to register itself with the master. Note that it is

                      not sufficient for the master to simply read the IP of

                      the slave off the socket once the slave connects. Due to

                      NAT and other routing issues, that IP may not be valid

                      for connecting to the slave from the master or other

                      hosts

  --report-password=name 

                      The account password of the slave to be reported to the

                      master during slave registration

  --report-port=#     Port for connecting to slave reported to the master

                      during slave registration. Set it only if the slave is

                      listening on a non-default port or if you have a special

                      tunnel from the master or other clients to the slave. If

                      not sure, leave this option unset

  --report-user=name  The account user name of the slave to be reported to the

                      master during slave registration

  --rowid-merge-buff-size=# 

                      The size of the buffers used [NOT] IN evaluation via

                      partial matching

  --rpl-semi-sync-master-enabled 

                      Enable semi-synchronous replication master (disabled by

                      default).

  --rpl-semi-sync-master-timeout=# 

                      The timeout value (in ms) for semi-synchronous

                      replication in the master

  --rpl-semi-sync-master-trace-level=# 

                      The tracing level for semi-sync replication.

  --rpl-semi-sync-master-wait-no-slave 

                      Wait until timeout when no semi-synchronous replication

                      slave available (enabled by default).

                      (Defaults to on; use --skip-rpl-semi-sync-master-wait-no-slave to disable.)

  --rpl-semi-sync-master-wait-point=name 

                      Should transaction wait for semi-sync ack after having

                      synced binlog, or after having committed in storage

                      engine.. One of: AFTER_SYNC, AFTER_COMMIT

  --rpl-semi-sync-slave-delay-master 

                      Only write master info file when ack is needed.

  --rpl-semi-sync-slave-enabled 

                      Enable semi-synchronous replication slave (disabled by

                      default).

  --rpl-semi-sync-slave-kill-conn-timeout[=#] 

                      Timeout for the mysql connection used to kill the slave

                      io_thread's connection on master. This timeout comes into

                      play when stop slave is executed.

  --rpl-semi-sync-slave-trace-level=# 

                      The tracing level for semi-sync replication.

  --safe-mode         Skip some optimize stages (for testing). Deprecated.

  --safe-user-create  Don't allow new user creation by the user who has no

                      write privileges to the mysql.user table.

  --secure-auth       Disallow authentication for accounts that have old

                      (pre-4.1) passwords

                      (Defaults to on; use --skip-secure-auth to disable.)

  --secure-file-priv=name 

                      Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to

                      files within specified directory

  --secure-timestamp=name 

                      Restricts direct setting of a session timestamp. Possible

                      levels are: YES - timestamp cannot deviate from the

                      system clock, REPLICATION - replication thread can adjust

                      timestamp to match the master's, SUPER - a user with this

                      privilege and a replication thread can adjust timestamp,

                      NO - historical behavior, anyone can modify session

                      timestamp

  --sequence[=name]   Enable or disable SEQUENCE plugin. One of: ON, OFF, FORCE

                      (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --server-id=#       Uniquely identifies the server instance in the community

                      of replication partners

  --session-track-schema 

                      Track changes to the default schema.

                      (Defaults to on; use --skip-session-track-schema to disable.)

  --session-track-state-change 

                      Track changes to the session state.

  --session-track-system-variables=name 

                      Track changes in registered system variables. 

  --session-track-transaction-info=name 

                      Track changes to the transaction attributes. OFF to

                      disable; STATE to track just transaction state (Is there

                      an active transaction? Does it have any data? etc.);

                      CHARACTERISTICS to track transaction state and report all

                      statements needed to start a transaction with the same

                      characteristics (isolation level, read only/read

                      write,snapshot - but not any work done / data modified

                      within the transaction).

  --show-slave-auth-info 

                      Show user and password in SHOW SLAVE HOSTS on this

                      master.

  --silent-startup    Don't print [Note] to the error log during startup.

  --skip-bdb          Deprecated option; Exist only for compatibility with old

                      my.cnf files

  --skip-grant-tables Start without grant tables. This gives all users FULL

                      ACCESS to all tables.

  --skip-host-cache   Don't cache host names.

  --skip-name-resolve Don't resolve hostnames. All hostnames are IP's or

                      'localhost'.

  --skip-networking   Don't allow connection with TCP/IP

  --skip-show-database 

                      Don't allow 'SHOW DATABASE' commands

  --skip-slave-start  If set, slave is not autostarted.

  --slave-compressed-protocol 

                      Use compression on master/slave protocol

  --slave-ddl-exec-mode=name 

                      How replication events should be executed. Legal values

                      are STRICT and IDEMPOTENT (default). In IDEMPOTENT mode,

                      replication will not stop for DDL operations that are

                      idempotent. This means that CREATE TABLE is treated as

                      CREATE TABLE OR REPLACE and DROP TABLE is treated as DROP

                      TABLE IF EXISTS.

  --slave-domain-parallel-threads=# 

                      Maximum number of parallel threads to use on slave for

                      events in a single replication domain. When using

                      multiple domains, this can be used to limit a single

                      domain from grabbing all threads and thus stalling other

                      domains. The default of 0 means to allow a domain to grab

                      as many threads as it wants, up to the value of

                      slave_parallel_threads.

  --slave-exec-mode=name 

                      How replication events should be executed. Legal values

                      are STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode,

                      replication will not stop for operations that are

                      idempotent. For example, in row based replication

                      attempts to delete rows that doesn't exist will be

                      ignored. In STRICT mode, replication will stop on any

                      unexpected difference between the master and the slave.

  --slave-load-tmpdir=name 

                      The location where the slave should put its temporary

                      files when replicating a LOAD DATA INFILE command

  --slave-max-allowed-packet=# 

                      The maximum packet length to sent successfully from the

                      master to slave.

  --slave-net-timeout=# 

                      Number of seconds to wait for more data from any

                      master/slave connection before aborting the read

  --slave-parallel-max-queued=# 

                      Limit on how much memory SQL threads should use per

                      parallel replication thread when reading ahead in the

                      relay log looking for opportunities for parallel

                      replication. Only used when --slave-parallel-threads > 0.

  --slave-parallel-mode=name 

                      Controls what transactions are applied in parallel when

                      using --slave-parallel-threads. Possible values:

                      "optimistic" tries to apply most transactional DML in

                      parallel, and handles any conflicts with rollback and

                      retry. "conservative" limits parallelism in an effort to

                      avoid any conflicts. "aggressive" tries to maximise the

                      parallelism, possibly at the cost of increased conflict

                      rate. "minimal" only parallelizes the commit steps of

                      transactions. "none" disables parallel apply completely.

  --slave-parallel-threads=# 

                      If non-zero, number of threads to spawn to apply in

                      parallel events on the slave that were group-committed on

                      the master or were logged with GTID in different

                      replication domains. Note that these threads are in

                      addition to the IO and SQL threads, which are always

                      created by a replication slave

  --slave-parallel-workers=# 

                      Alias for slave_parallel_threads

  --slave-run-triggers-for-rbr=name 

                      Modes for how triggers in row-base replication on slave

                      side will be executed. Legal values are NO (default), YES

                      and LOGGING. NO means that trigger for RBR will not be

                      running on slave. YES and LOGGING means that triggers

                      will be running on slave, if there was not triggers

                      running on the master for the statement. LOGGING also

                      means results of that the executed triggers work will be

                      written to the binlog.

  --slave-skip-errors=name 

                      Tells the slave thread to continue replication when a

                      query event returns an error from the provided list

  --slave-sql-verify-checksum 

                      Force checksum verification of replication events after

                      reading them from relay log. Note: Events are always

                      checksum-verified by slave on receiving them from the

                      network before writing them to the relay log

                      (Defaults to on; use --skip-slave-sql-verify-checksum to disable.)

  --slave-transaction-retries=# 

                      Number of times the slave SQL thread will retry a

                      transaction in case it failed with a deadlock, elapsed

                      lock wait timeout or listed in

                      slave_transaction_retry_errors, before giving up and

                      stopping

  --slave-transaction-retry-errors=name 

                      Tells the slave thread to retry transaction for

                      replication when a query event returns an error from the

                      provided list. Deadlock error, elapsed lock wait timeout,

                      net read error, net read timeout, net write error, net

                      write timeout, connect error and 2 types of lost

                      connection error are automatically added to this list

  --slave-transaction-retry-interval=# 

                      Interval of the slave SQL thread will retry a transaction

                      in case it failed with a deadlock or elapsed lock wait

                      timeout or listed in slave_transaction_retry_errors

  --slave-type-conversions=name 

                      Set of slave type conversions that are enabled. If the

                      variable is empty, no conversions are allowed and it is

                      expected that the types match exactly. Any combination

                      of: ALL_LOSSY, ALL_NON_LOSSY

  --slow-launch-time=# 

                      If creating the thread takes longer than this value (in

                      seconds), the Slow_launch_threads counter will be

                      incremented

  --slow-query-log    Log slow queries to a table or log file. Defaults logging

                      to a file 'hostname'-slow.log or a table mysql.slow_log

                      if --log-output=TABLE is used. Must be enabled to

                      activate other slow log options.

  --slow-query-log-file=name 

                      Log slow queries to given log file. Defaults logging to

                      'hostname'-slow.log. Must be enabled to activate other

                      slow log options

  --socket=name       Socket file to use for connection

  --sort-buffer-size=# 

                      Each thread that needs to do a sort allocates a buffer of

                      this size

  --sql-mode=name     Sets the sql mode. Any combination of: REAL_AS_FLOAT, 

                      PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, 

                      IGNORE_BAD_TABLE_OPTIONS, ONLY_FULL_GROUP_BY, 

                      NO_UNSIGNED_SUBTRACTION, NO_DIR_IN_CREATE, POSTGRESQL, 

                      ORACLE, MSSQL, DB2, MAXDB, NO_KEY_OPTIONS, 

                      NO_TABLE_OPTIONS, NO_FIELD_OPTIONS, MYSQL323, MYSQL40, 

                      ANSI, NO_AUTO_VALUE_ON_ZERO, NO_BACKSLASH_ESCAPES, 

                      STRICT_TRANS_TABLES, STRICT_ALL_TABLES, NO_ZERO_IN_DATE, 

                      NO_ZERO_DATE, ALLOW_INVALID_DATES, 

                      ERROR_FOR_DIVISION_BY_ZERO, TRADITIONAL, 

                      NO_AUTO_CREATE_USER, HIGH_NOT_PRECEDENCE, 

                      NO_ENGINE_SUBSTITUTION, PAD_CHAR_TO_FULL_LENGTH, 

                      EMPTY_STRING_IS_NULL, SIMULTANEOUS_ASSIGNMENT, 

                      TIME_ROUND_FRACTIONAL

  --sql-safe-updates  If set to 1, UPDATEs and DELETEs need either a key in the

                      WHERE clause, or a LIMIT clause, or else they will

                      aborted. Prevents the common mistake of accidentally

                      deleting or updating every row in a table.

  --ssl               Enable SSL for connection (automatically enabled if an

                      ssl option is used).

  --ssl-ca=name       CA file in PEM format (check OpenSSL docs, implies --ssl)

  --ssl-capath=name   CA directory (check OpenSSL docs, implies --ssl)

  --ssl-cert=name     X509 cert in PEM format (implies --ssl)

  --ssl-cipher=name   SSL cipher to use (implies --ssl)

  --ssl-crl=name      CRL file in PEM format (check OpenSSL docs, implies

                      --ssl)

  --ssl-crlpath=name  CRL directory (check OpenSSL docs, implies --ssl)

  --ssl-key=name      X509 key in PEM format (implies --ssl)

  --stack-trace       Print a symbolic stack trace on failure

                      (Defaults to on; use --skip-stack-trace to disable.)

  --standard-compliant-cte 

                      Allow only CTEs compliant to SQL standard

                      (Defaults to on; use --skip-standard-compliant-cte to disable.)

  --stored-program-cache=# 

                      The soft upper limit for number of cached stored routines

                      for one connection.

  --strict-password-validation 

                      When password validation plugins are enabled, reject

                      passwords that cannot be validated (passwords specified

                      as a hash)

                      (Defaults to on; use --skip-strict-password-validation to disable.)

  --super-large-pages Enable support for super large pages.

  -s, --symbolic-links 

                      Enable symbolic link support.

                      (Defaults to on; use --skip-symbolic-links to disable.)

  --sync-binlog=#     Synchronously flush binary log to disk after every #th

                      event. Use 0 (default) to disable synchronous flushing

  --sync-frm          Sync .frm files to disk on creation

                      (Defaults to on; use --skip-sync-frm to disable.)

  --sync-master-info=# 

                      Synchronously flush master info to disk after every #th

                      event. Use 0 to disable synchronous flushing

  --sync-relay-log=#  Synchronously flush relay log to disk after every #th

                      event. Use 0 to disable synchronous flushing

  --sync-relay-log-info=# 

                      Synchronously flush relay log info to disk after every

                      #th transaction. Use 0 to disable synchronous flushing

  --sysdate-is-now    Non-default option to alias SYSDATE() to NOW() to make it

                      safe-replicable. Since 5.0, SYSDATE() returns a `dynamic'

                      value different for different invocations, even within

                      the same statement.

  --system-versioning-alter-history=name 

                      Versioning ALTER TABLE mode. ERROR: Fail ALTER with

                      error; KEEP: Keep historical system rows and subject them

                      to ALTER

  --table-cache=#     Deprecated; use --table-open-cache instead.

  --table-definition-cache=# 

                      The number of cached table definitions

  --table-open-cache=# 

                      The number of cached open tables

  --table-open-cache-instances=# 

                      Maximum number of table cache instances

  --tc-heuristic-recover=name 

                      Decision to use in heuristic recover process. One of: OFF,

                      COMMIT, ROLLBACK

  --tcp-keepalive-interval=# 

                      The interval, in seconds, between when successive

                      keep-alive packets are sent if no acknowledgement is

                      received.If set to 0, system dependent default is used.

                      (Automatically configured unless set explicitly)

  --tcp-keepalive-probes=# 

                      The number of unacknowledged probes to send before

                      considering the connection dead and notifying the

                      application layer.If set to 0, system dependent default

                      is used. (Automatically configured unless set explicitly)

  --tcp-keepalive-time=# 

                      Timeout, in milliseconds, with no activity until the

                      first TCP keep-alive packet is sent.If set to 0, system

                      dependent default is used. (Automatically configured

                      unless set explicitly)

  --tcp-nodelay       Set option TCP_NODELAY (disable Nagle's algorithm) on

                      socket

                      (Defaults to on; use --skip-tcp-nodelay to disable.)

  --temp-pool         Using this option will cause most temporary files created

                      to use a small set of names, rather than a unique name

                      for each new file.

                      (Defaults to on; use --skip-temp-pool to disable.)

  --thread-cache-size=# 

                      How many threads we should keep in a cache for reuse.

                      These are freed after 5 minutes of idle time

  --thread-concurrency=# 

                      Permits the application to give the threads system a hint

                      for the desired number of threads that should be run at

                      the same time.This variable has no effect, and is

                      deprecated. It will be removed in a future release.

  --thread-handling=name 

                      Define threads usage for handling queries. One of: 

                      one-thread-per-connection, no-threads, pool-of-threads

  --thread-pool-idle-timeout=# 

                      Timeout in seconds for an idle thread in the thread

                      pool.Worker thread will be shut down after timeout

  --thread-pool-max-threads=# 

                      Maximum allowed number of worker threads in the thread

                      pool

  --thread-pool-oversubscribe=# 

                      How many additional active worker threads in a group are

                      allowed.

  --thread-pool-prio-kickup-timer=# 

                      The number of milliseconds before a dequeued low-priority

                      statement is moved to the high-priority queue

  --thread-pool-priority=name 

                      Threadpool priority. High priority connections usually

                      start executing earlier than low priority.If priority set

                      to 'auto', the the actual priority(low or high) is

                      determined based on whether or not connection is inside

                      transaction.

  --thread-pool-size=# 

                      Number of thread groups in the pool. This parameter is

                      roughly equivalent to maximum number of concurrently

                      executing threads (threads in a waiting state do not

                      count as executing).

  --thread-pool-stall-limit=# 

                      Maximum query execution time in milliseconds,before an

                      executing non-yielding thread is considered stalled.If a

                      worker thread is stalled, additional worker thread may be

                      created to handle remaining clients.

  --thread-stack=#    The stack size for each thread

  --time-format=name  The TIME format (ignored)

  --timed-mutexes     Specify whether to time mutexes. Deprecated, has no

                      effect.

  --tls-version=name  TLS protocol version for secure connections.. Any

                      combination of: TLSv1.0, TLSv1.1, TLSv1.2, TLSv1.3

  --tmp-disk-table-size=# 

                      Max size for data for an internal temporary on-disk

                      MyISAM or Aria table.

  --tmp-memory-table-size=# 

                      If an internal in-memory temporary table exceeds this

                      size, MariaDB will automatically convert it to an on-disk

                      MyISAM or Aria table. Same as tmp_table_size.

  --tmp-table-size=#  Alias for tmp_memory_table_size. If an internal in-memory

                      temporary table exceeds this size, MariaDB will

                      automatically convert it to an on-disk MyISAM or Aria

                      table.

  -t, --tmpdir=name   Path for temporary files. Several paths may be specified,

                      separated by a colon (:), in this case they are used in a

                      round-robin fashion

  --transaction-alloc-block-size=# 

                      Allocation block size for transactions to be stored in

                      binary log

  --transaction-isolation=name 

                      Default transaction isolation level. One of: 

                      READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, 

                      SERIALIZABLE

  --transaction-prealloc-size=# 

                      Persistent buffer for transactions to be stored in binary

                      log

  --transaction-read-only 

                      Default transaction access mode. True if transactions are

                      read-only.

  --unix-socket[=name] 

                      Enable or disable unix_socket plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --updatable-views-with-limit=name 

                      YES = Don't issue an error message (warning only) if a

                      VIEW without presence of a key of the underlying table is

                      used in queries with a LIMIT clause for updating. NO =

                      Prohibit update of a VIEW, which does not contain a key

                      of the underlying table and the query uses a LIMIT clause

                      (usually get from GUI tools)

  --use-stat-tables=name 

                      Specifies how to use system statistics tables. One of: 

                      NEVER, COMPLEMENTARY, PREFERABLY, 

                      COMPLEMENTARY_FOR_QUERIES, PREFERABLY_FOR_QUERIES

  -u, --user=name     Run mysqld daemon as user.

  --user-variables[=name] 

                      Enable or disable user_variables plugin. One of: ON, OFF,

                      FORCE (don't start if the plugin fails to load),

                      FORCE_PLUS_PERMANENT (like FORCE, but the plugin can not

                      be uninstalled).

  --userstat          Enables statistics gathering for USER_STATISTICS,

                      CLIENT_STATISTICS, INDEX_STATISTICS and TABLE_STATISTICS

                      tables in the INFORMATION_SCHEMA

  -v, --verbose       Used with --help option for detailed help.

  -V, --version[=name] 

                      Output version information and exit.

  --wait-timeout=#    The number of seconds the server waits for activity on a

                      connection before closing it

  --wsrep-OSU-method[=name] 

                      Method for Online Schema Upgrade. One of: TOI, RSU

  --wsrep-SR-store=name 

                      Storage for streaming replication fragments. One of: none,

                      table

  --wsrep-auto-increment-control 

                      To automatically control the assignment of autoincrement

                      variables

                      (Defaults to on; use --skip-wsrep-auto-increment-control to disable.)

  --wsrep-causal-reads 

                      Setting this variable is equivalent to setting

                      wsrep_sync_wait READ flag

  --wsrep-certification-rules=name 

                      Certification rules to use in the cluster. Possible

                      values are: "strict": stricter rules that could result in

                      more certification failures. "optimized": relaxed rules

                      that allow more concurrency and cause less certification

                      failures.

  --wsrep-certify-nonPK 

                      Certify tables with no primary key

                      (Defaults to on; use --skip-wsrep-certify-nonPK to disable.)

  --wsrep-cluster-address=name 

                      Address to initially connect to cluster

  --wsrep-cluster-name=name 

                      Name for the cluster

  --wsrep-convert-LOCK-to-trx 

                      To convert locking sessions into transactions

  --wsrep-data-home-dir=name 

                      home directory for wsrep provider

  --wsrep-dbug-option=name 

                      DBUG options to provider library

  --wsrep-debug=name  WSREP debug level logging. One of: NONE, SERVER, 

                      TRANSACTION, STREAMING, CLIENT

  --wsrep-desync      To desynchronize the node from the cluster

  --wsrep-dirty-reads Allow reads even when the node is not in the primary

                      component.

  --wsrep-drupal-282555-workaround 

                      Enable a workaround to handle the cases where inserting a

                      DEFAULT value into an auto-increment column could fail

                      with duplicate key error

  --wsrep-forced-binlog-format=name 

                      binlog format to take effect over user's choice. One of: 

                      MIXED, STATEMENT, ROW, NONE

  --wsrep-gtid-domain-id=# 

                      When wsrep_gtid_mode is set, this value is used as

                      gtid_domain_id for galera transactions and also copied to

                      the joiner nodes during state transfer. It is ignored,

                      otherwise.

  --wsrep-gtid-mode   Automatically update the (joiner) node's

                      wsrep_gtid_domain_id value with that of donor's (received

                      during state transfer) and use it in place of

                      gtid_domain_id for all galera transactions. When OFF

                      (default), wsrep_gtid_domain_id is simply ignored

                      (backward compatibility).

  --wsrep-ignore-apply-errors=# 

                      Ignore replication errors

  --wsrep-load-data-splitting 

                      To commit LOAD DATA transaction after every 10K rows

                      inserted (deprecated)

  --wsrep-log-conflicts 

                      To log multi-master conflicts

  --wsrep-max-ws-rows=# 

                      Max number of rows in write set

  --wsrep-max-ws-size=# 

                      Max write set size (bytes)

  --wsrep-mysql-replication-bundle=# 

                      mysql replication group commit 

  --wsrep-new-cluster Bootstrap a cluster. It works by overriding the current

                      value of wsrep_cluster_address. It is recommended not to

                      add this option to the config file as this will trigger

                      bootstrap on every server start.

  --wsrep-node-address=name 

                      Specifies the node's network address, in the format ip

                      address[:port]. Used in situations where autoguessing is

                      not reliable. As of MariaDB 10.1.8, supports IPv6.

  --wsrep-node-incoming-address=name 

                      Client connection address

  --wsrep-node-name=name 

                      Name of this node. This name can be used in

                      wsrep_sst_donor as a preferred donor. Note that multiple

                      nodes in a cluster can have the same name.

  --wsrep-notify-cmd=name 

  --wsrep-on          To enable wsrep replication 

  --wsrep-provider=name 

                      Path to replication provider library

  --wsrep-provider-options=name 

                      Semicolon (;) separated list of wsrep options (see

                      wsrep_provider_options documentation).

  --wsrep-recover     Recover database state after crash and exit

  --wsrep-reject-queries[=name] 

                      Variable to set to reject queries. One of: NONE, ALL, 

                      ALL_KILL

  --wsrep-replicate-myisam 

                      To enable myisam replication

  --wsrep-restart-slave 

                      Should MariaDB slave be restarted automatically, when

                      node joins back to cluster

  --wsrep-retry-autocommit=# 

                      Max number of times to retry a failed autocommit

                      statement

  --wsrep-slave-FK-checks 

                      Should slave thread do foreign key constraint checks

                      (Defaults to on; use --skip-wsrep-slave-FK-checks to disable.)

  --wsrep-slave-UK-checks 

                      Should slave thread do secondary index uniqueness checks

  --wsrep-slave-threads=# 

                      Number of slave appliers to launch

  --wsrep-sst-auth=name 

                      Authentication for SST connection

  --wsrep-sst-donor=name 

                      preferred donor node for the SST

  --wsrep-sst-donor-rejects-queries 

                      Reject client queries when donating state snapshot

                      transfer

  --wsrep-sst-method=name 

                      State snapshot transfer method

  --wsrep-sst-receive-address=name 

                      Address where node is waiting for SST contact

  --wsrep-start-position=name 

                      global transaction position to start from 

  --wsrep-sync-wait[=#] 

                      Ensure "synchronous" read view before executing an

                      operation of the type specified by bitmask: 1 -

                      READ(includes SELECT, SHOW and BEGIN/START TRANSACTION);

                      2 - UPDATE and DELETE; 4 - INSERT and REPLACE

  --wsrep-trx-fragment-size=# 

                      Size of transaction fragments for streaming replication

                      (measured in units of 'wsrep_trx_fragment_unit')

  --wsrep-trx-fragment-unit=name 

                      Unit for streaming replication transaction fragments'

                      size: bytes, rows, statements
Variables (--variable-name=value)

and boolean options {FALSE|TRUE}                           Value (after reading options)

---------------------------------------------------------- ---------------

allow-suspicious-udfs                                      FALSE

alter-algorithm                                            DEFAULT

analyze-sample-percentage                                  100

aria-block-size                                            8192

aria-checkpoint-interval                                   30

aria-checkpoint-log-activity                               1048576

aria-encrypt-tables                                        FALSE

aria-force-start-after-recovery-failures                   0

aria-group-commit                                          none

aria-group-commit-interval                                 0

aria-log-dir-path                                          /var/lib/mysql/

aria-log-file-size                                         1073741824

aria-log-purge-type                                        immediate

aria-max-sort-file-size                                    9223372036853727232

aria-page-checksum                                         TRUE

aria-pagecache-age-threshold                               300

aria-pagecache-buffer-size                                 134217728

aria-pagecache-division-limit                              100

aria-pagecache-file-hash-size                              512

aria-recover-options                                       BACKUP,QUICK

aria-repair-threads                                        1

aria-sort-buffer-size                                      268434432

aria-stats-method                                          nulls_unequal

aria-sync-log-dir                                          NEWFILE

auto-increment-increment                                   1

auto-increment-offset                                      1

autocommit                                                 TRUE

automatic-sp-privileges                                    TRUE

back-log                                                   70

basedir                                                    /usr

big-tables                                                 FALSE

bind-address                                               (No default value)

binlog-annotate-row-events                                 TRUE

binlog-cache-size                                          32768

binlog-checksum                                            CRC32

binlog-commit-wait-count                                   0

binlog-commit-wait-usec                                    100000

binlog-direct-non-transactional-updates                    FALSE

binlog-file-cache-size                                     16384

binlog-format                                              MIXED

binlog-optimize-thread-scheduling                          TRUE

binlog-row-event-max-size                                  8192

binlog-row-image                                           FULL

binlog-stmt-cache-size                                     32768

bulk-insert-buffer-size                                    16777216

character-set-client-handshake                             TRUE

character-set-filesystem                                   binary

character-set-server                                       latin1

character-sets-dir                                         /usr/share/mysql/charsets/

chroot                                                     (No default value)

collation-server                                           latin1_swedish_ci

column-compression-threshold                               100

column-compression-zlib-level                              6

column-compression-zlib-strategy                           DEFAULT_STRATEGY

column-compression-zlib-wrap                               FALSE

completion-type                                            NO_CHAIN

concurrent-insert                                          ALWAYS

connect-timeout                                            5

console                                                    FALSE

datadir                                                    /var/lib/mysql/

date-format                                                %Y-%m-%d

datetime-format                                            %Y-%m-%d %H:%i:%s

deadlock-search-depth-long                                 15

deadlock-search-depth-short                                4

deadlock-timeout-long                                      50000000

deadlock-timeout-short                                     10000

debug                                                      

debug-abort-slave-event-count                              0

debug-disconnect-slave-event-count                         0

debug-gdb                                                  FALSE

debug-max-binlog-dump-events                               0

debug-no-sync                                              FALSE

debug-no-thread-alarm                                      FALSE

debug-sporadic-binlog-dump-fail                            FALSE

default-password-lifetime                                  0

default-regex-flags                                        

default-storage-engine                                     InnoDB

default-time-zone                                          (No default value)

default-tmp-storage-engine                                 (No default value)

default-week-format                                        0

delay-key-write                                            ON

delayed-insert-limit                                       100

delayed-insert-timeout                                     300

delayed-queue-size                                         1000

des-key-file                                               (No default value)

disconnect-on-expired-password                             FALSE

div-precision-increment                                    4

encrypt-binlog                                             FALSE

encrypt-tmp-disk-tables                                    FALSE

encrypt-tmp-files                                          FALSE

enforce-storage-engine                                     (No default value)

eq-range-index-dive-limit                                  200

event-scheduler                                            OFF

expensive-subquery-limit                                   100

expire-logs-days                                           10

explicit-defaults-for-timestamp                            FALSE

external-locking                                           FALSE

extra-max-connections                                      1

extra-port                                                 0

feedback                                                   ON

feedback-http-proxy                                        (No default value)

feedback-send-retry-wait                                   60

feedback-send-timeout                                      60

feedback-url                                               https://mariadb.org/feedback_plugin/post

feedback-user-info                                         

flashback                                                  FALSE

flush                                                      FALSE

flush-time                                                 0

ft-boolean-syntax                                          + -><()~*:""&|

ft-max-word-len                                            84

ft-min-word-len                                            4

ft-query-expansion-limit                                   20

ft-stopword-file                                           (No default value)

gdb                                                        FALSE

general-log                                                FALSE

general-log-file                                           8b6eacc7d51c.log

getopt-prefix-matching                                     TRUE

group-concat-max-len                                       1048576

gtid-cleanup-batch-size                                    64

gtid-domain-id                                             0

gtid-ignore-duplicates                                     FALSE

gtid-pos-auto-engines                                      

gtid-strict-mode                                           FALSE

help                                                       TRUE

histogram-size                                             254

histogram-type                                             DOUBLE_PREC_HB

host-cache-size                                            228

idle-readonly-transaction-timeout                          0

idle-transaction-timeout                                   0

idle-write-transaction-timeout                             0

ignore-builtin-innodb                                      FALSE

ignore-db-dirs                                             

in-predicate-conversion-threshold                          1000

init-connect                                               

init-file                                                  (No default value)

init-rpl-role                                              MASTER

init-slave                                                 

innodb                                                     ON

innodb-adaptive-flushing                                   TRUE

innodb-adaptive-flushing-lwm                               10

innodb-adaptive-hash-index                                 TRUE

innodb-adaptive-hash-index-parts                           8

innodb-adaptive-max-sleep-delay                            150000

innodb-autoextend-increment                                64

innodb-autoinc-lock-mode                                   1

innodb-background-scrub-data-check-interval                3600

innodb-background-scrub-data-compressed                    FALSE

innodb-background-scrub-data-interval                      604800

innodb-background-scrub-data-uncompressed                  FALSE

innodb-buf-dump-status-frequency                           0

innodb-buffer-page                                         ON

innodb-buffer-page-lru                                     ON

innodb-buffer-pool-chunk-size                              134217728

innodb-buffer-pool-dump-at-shutdown                        TRUE

innodb-buffer-pool-dump-now                                FALSE

innodb-buffer-pool-dump-pct                                25

innodb-buffer-pool-filename                                ib_buffer_pool

innodb-buffer-pool-instances                               0

innodb-buffer-pool-load-abort                              FALSE

innodb-buffer-pool-load-at-startup                         TRUE

innodb-buffer-pool-load-now                                FALSE

innodb-buffer-pool-size                                    268435456

innodb-buffer-pool-stats                                   ON

innodb-change-buffer-max-size                              25

innodb-change-buffering                                    all

innodb-checksum-algorithm                                  crc32

innodb-checksums                                           TRUE

innodb-cmp                                                 ON

innodb-cmp-per-index                                       ON

innodb-cmp-per-index-enabled                               FALSE

innodb-cmp-per-index-reset                                 ON

innodb-cmp-reset                                           ON

innodb-cmpmem                                              ON

innodb-cmpmem-reset                                        ON

innodb-commit-concurrency                                  0

innodb-compression-algorithm                               zlib

innodb-compression-default                                 FALSE

innodb-compression-failure-threshold-pct                   5

innodb-compression-level                                   6

innodb-compression-pad-pct-max                             50

innodb-concurrency-tickets                                 5000

innodb-data-file-path                                      ibdata1:12M:autoextend

innodb-data-home-dir                                       (No default value)

innodb-deadlock-detect                                     TRUE

innodb-default-encryption-key-id                           1

innodb-default-row-format                                  dynamic

innodb-defragment                                          FALSE

innodb-defragment-fill-factor                              0.9

innodb-defragment-fill-factor-n-recs                       20

innodb-defragment-frequency                                40

innodb-defragment-n-pages                                  7

innodb-defragment-stats-accuracy                           0

innodb-disable-sort-file-cache                             FALSE

innodb-doublewrite                                         TRUE

innodb-encrypt-log                                         FALSE

innodb-encrypt-tables                                      OFF

innodb-encrypt-temporary-tables                            FALSE

innodb-encryption-rotate-key-age                           1

innodb-encryption-rotation-iops                            100

innodb-encryption-threads                                  0

innodb-fast-shutdown                                       1

innodb-fatal-semaphore-wait-threshold                      600

innodb-file-format                                         (No default value)

innodb-file-per-table                                      TRUE

innodb-fill-factor                                         100

innodb-flush-log-at-timeout                                1

innodb-flush-log-at-trx-commit                             1

innodb-flush-method                                        O_DIRECT

innodb-flush-neighbors                                     1

innodb-flush-sync                                          TRUE

innodb-flushing-avg-loops                                  30

innodb-force-load-corrupted                                FALSE

innodb-force-primary-key                                   FALSE

innodb-force-recovery                                      0

innodb-ft-aux-table                                        (No default value)

innodb-ft-being-deleted                                    ON

innodb-ft-cache-size                                       8000000

innodb-ft-config                                           ON

innodb-ft-default-stopword                                 ON

innodb-ft-deleted                                          ON

innodb-ft-enable-diag-print                                FALSE

innodb-ft-enable-stopword                                  TRUE

innodb-ft-index-cache                                      ON

innodb-ft-index-table                                      ON

innodb-ft-max-token-size                                   84

innodb-ft-min-token-size                                   3

innodb-ft-num-word-optimize                                2000

innodb-ft-result-cache-limit                               2000000000

innodb-ft-server-stopword-table                            (No default value)

innodb-ft-sort-pll-degree                                  2

innodb-ft-total-cache-size                                 640000000

innodb-ft-user-stopword-table                              (No default value)

innodb-idle-flush-pct                                      100

innodb-immediate-scrub-data-uncompressed                   FALSE

innodb-io-capacity                                         400

innodb-io-capacity-max                                     18446744073709551615

innodb-large-prefix                                        (No default value)

innodb-lock-schedule-algorithm                             fcfs

innodb-lock-wait-timeout                                   50

innodb-lock-waits                                          ON

innodb-locks                                               ON

innodb-locks-unsafe-for-binlog                             FALSE

innodb-log-buffer-size                                     8388608

innodb-log-checksums                                       TRUE

innodb-log-compressed-pages                                TRUE

innodb-log-file-size                                       50331648

innodb-log-files-in-group                                  2

innodb-log-group-home-dir                                  (No default value)

innodb-log-optimize-ddl                                    TRUE

innodb-log-write-ahead-size                                8192

innodb-lru-scan-depth                                      1024

innodb-max-dirty-pages-pct                                 75

innodb-max-dirty-pages-pct-lwm                             0

innodb-max-purge-lag                                       0

innodb-max-purge-lag-delay                                 0

innodb-max-undo-log-size                                   10485760

innodb-metrics                                             ON

innodb-monitor-disable                                     (No default value)

innodb-monitor-enable                                      (No default value)

innodb-monitor-reset                                       (No default value)

innodb-monitor-reset-all                                   (No default value)

innodb-mutexes                                             ON

innodb-old-blocks-pct                                      37

innodb-old-blocks-time                                     1000

innodb-online-alter-log-max-size                           134217728

innodb-open-files                                          400

innodb-optimize-fulltext-only                              FALSE

innodb-page-cleaners                                       4

innodb-page-size                                           16384

innodb-prefix-index-cluster-optimization                   FALSE

innodb-print-all-deadlocks                                 FALSE

innodb-purge-batch-size                                    300

innodb-purge-rseg-truncate-frequency                       128

innodb-purge-threads                                       4

innodb-random-read-ahead                                   FALSE

innodb-read-ahead-threshold                                56

innodb-read-io-threads                                     4

innodb-read-only                                           FALSE

innodb-replication-delay                                   0

innodb-rollback-on-timeout                                 FALSE

innodb-rollback-segments                                   128

innodb-scrub-log                                           FALSE

innodb-scrub-log-speed                                     256

innodb-sort-buffer-size                                    1048576

innodb-spin-wait-delay                                     4

innodb-stats-auto-recalc                                   TRUE

innodb-stats-include-delete-marked                         FALSE

innodb-stats-method                                        nulls_equal

innodb-stats-modified-counter                              0

innodb-stats-on-metadata                                   FALSE

innodb-stats-persistent                                    TRUE

innodb-stats-persistent-sample-pages                       20

innodb-stats-sample-pages                                  8

innodb-stats-traditional                                   TRUE

innodb-stats-transient-sample-pages                        8

innodb-status-file                                         FALSE

innodb-status-output                                       FALSE

innodb-status-output-locks                                 FALSE

innodb-strict-mode                                         TRUE

innodb-sync-array-size                                     1

innodb-sync-spin-loops                                     30

innodb-sys-columns                                         ON

innodb-sys-datafiles                                       ON

innodb-sys-fields                                          ON

innodb-sys-foreign                                         ON

innodb-sys-foreign-cols                                    ON

innodb-sys-indexes                                         ON

innodb-sys-semaphore-waits                                 ON

innodb-sys-tables                                          ON

innodb-sys-tablespaces                                     ON

innodb-sys-tablestats                                      ON

innodb-sys-virtual                                         ON

innodb-table-locks                                         TRUE

innodb-tablespaces-encryption                              ON

innodb-tablespaces-scrubbing                               ON

innodb-temp-data-file-path                                 ibtmp1:12M:autoextend

innodb-thread-concurrency                                  0

innodb-thread-sleep-delay                                  10000

innodb-tmpdir                                              (No default value)

innodb-trx                                                 ON

innodb-undo-directory                                      (No default value)

innodb-undo-log-truncate                                   FALSE

innodb-undo-logs                                           128

innodb-undo-tablespaces                                    0

innodb-use-atomic-writes                                   TRUE

innodb-use-native-aio                                      TRUE

innodb-write-io-threads                                    4

interactive-timeout                                        28800

join-buffer-size                                           262144

join-buffer-space-limit                                    2097152

join-cache-level                                           2

keep-files-on-create                                       FALSE

key-buffer-size                                            134217728

key-cache-age-threshold                                    300

key-cache-block-size                                       1024

key-cache-division-limit                                   100

key-cache-file-hash-size                                   512

key-cache-segments                                         0

large-files-support                                        TRUE

large-pages                                                FALSE

lc-messages                                                en_US

lc-messages-dir                                            /usr/share/mysql

lc-time-names                                              en_US

local-infile                                               TRUE

lock-wait-timeout                                          86400

log-basename                                               8b6eacc7d51c

log-bin                                                    (No default value)

log-bin-compress                                           FALSE

log-bin-compress-min-len                                   256

log-bin-index                                              (No default value)

log-bin-trust-function-creators                            FALSE

log-disabled-statements                                    sp

log-error                                                  

log-isam                                                   myisam.log

log-output                                                 FILE

log-queries-not-using-indexes                              FALSE

log-short-format                                           FALSE

log-slave-updates                                          FALSE

log-slow-admin-statements                                  TRUE

log-slow-disabled-statements                               sp

log-slow-filter                                            admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk

log-slow-rate-limit                                        1

log-slow-slave-statements                                  TRUE

log-slow-verbosity                                         

log-tc                                                     tc.log

log-tc-size                                                24576

log-warnings                                               2

long-query-time                                            10

low-priority-updates                                       FALSE

lower-case-file-system                                     FALSE

lower-case-table-names                                     0

master-info-file                                           master.info

master-retry-count                                         86400

master-verify-checksum                                     FALSE

max-allowed-packet                                         16777216

max-binlog-cache-size                                      18446744073709547520

max-binlog-size                                            104857600

max-binlog-stmt-cache-size                                 18446744073709547520

max-connect-errors                                         100

max-connections                                            100

max-delayed-threads                                        20

max-digest-length                                          1024

max-error-count                                            64

max-heap-table-size                                        33554432

max-join-size                                              18446744073709551615

max-length-for-sort-data                                   1024

max-long-data-size                                         16777216

max-password-errors                                        4294967295

max-prepared-stmt-count                                    16382

max-recursive-iterations                                   4294967295

max-relay-log-size                                         104857600

max-rowid-filter-size                                      131072

max-seeks-for-key                                          4294967295

max-session-mem-used                                       9223372036854775807

max-sort-length                                            1024

max-sp-recursion-depth                                     0

max-statement-time                                         0

max-tmp-tables                                             32

max-user-connections                                       0

max-write-lock-count                                       4294967295

memlock                                                    FALSE

metadata-locks-cache-size                                  1024

metadata-locks-hash-instances                              8

min-examined-row-limit                                     0

mrr-buffer-size                                            262144

multi-range-count                                          256

myisam-block-size                                          1024

myisam-data-pointer-size                                   6

myisam-max-sort-file-size                                  9223372036853727232

myisam-mmap-size                                           18446744073709551615

myisam-recover-options                                     BACKUP

myisam-repair-threads                                      1

myisam-sort-buffer-size                                    536870912

myisam-stats-method                                        NULLS_UNEQUAL

myisam-use-mmap                                            FALSE

mysql56-temporal-format                                    TRUE

net-buffer-length                                          16384

net-read-timeout                                           30

net-retry-count                                            10

net-write-timeout                                          60

old                                                        FALSE

old-alter-table                                            DEFAULT

old-mode                                                   

old-passwords                                              FALSE

old-style-user-limits                                      FALSE

open-files-limit                                           935

optimizer-prune-level                                      1

optimizer-search-depth                                     62

optimizer-selectivity-sampling-limit                       100

optimizer-switch                                           index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on

optimizer-trace                                            

optimizer-trace-max-mem-size                               1048576

optimizer-use-condition-selectivity                        4

partition                                                  ON

performance-schema                                         FALSE

performance-schema-accounts-size                           -1

performance-schema-consumer-events-stages-current          FALSE

performance-schema-consumer-events-stages-history          FALSE

performance-schema-consumer-events-stages-history-long     FALSE

performance-schema-consumer-events-statements-current      TRUE

performance-schema-consumer-events-statements-history      FALSE

performance-schema-consumer-events-statements-history-long FALSE

performance-schema-consumer-events-waits-current           FALSE

performance-schema-consumer-events-waits-history           FALSE

performance-schema-consumer-events-waits-history-long      FALSE

performance-schema-consumer-global-instrumentation         TRUE

performance-schema-consumer-statements-digest              TRUE

performance-schema-consumer-thread-instrumentation         TRUE

performance-schema-digests-size                            -1

performance-schema-events-stages-history-long-size         -1

performance-schema-events-stages-history-size              -1

performance-schema-events-statements-history-long-size     -1

performance-schema-events-statements-history-size          -1

performance-schema-events-waits-history-long-size          -1

performance-schema-events-waits-history-size               -1

performance-schema-hosts-size                              -1

performance-schema-instrument                              

performance-schema-max-cond-classes                        90

performance-schema-max-cond-instances                      -1

performance-schema-max-digest-length                       1024

performance-schema-max-file-classes                        50

performance-schema-max-file-handles                        32768

performance-schema-max-file-instances                      -1

performance-schema-max-mutex-classes                       200

performance-schema-max-mutex-instances                     -1

performance-schema-max-rwlock-classes                      40

performance-schema-max-rwlock-instances                    -1

performance-schema-max-socket-classes                      10

performance-schema-max-socket-instances                    -1

performance-schema-max-stage-classes                       160

performance-schema-max-statement-classes                   202

performance-schema-max-table-handles                       -1

performance-schema-max-table-instances                     -1

performance-schema-max-thread-classes                      50

performance-schema-max-thread-instances                    -1

performance-schema-session-connect-attrs-size              -1

performance-schema-setup-actors-size                       100

performance-schema-setup-objects-size                      100

performance-schema-users-size                              -1

pid-file                                                   /var/run/mysqld/mysqld.pid

plugin-dir                                                 /usr/lib/mysql/plugin/

plugin-maturity                                            gamma

port                                                       3306

port-open-timeout                                          0

preload-buffer-size                                        32768

profiling-history-size                                     15

progress-report-time                                       5

protocol-version                                           10

proxy-protocol-networks                                    

query-alloc-block-size                                     16384

query-cache-limit                                          131072

query-cache-min-res-unit                                   4096

query-cache-size                                           67108864

query-cache-strip-comments                                 FALSE

query-cache-type                                           ON

query-cache-wlock-invalidate                               FALSE

query-prealloc-size                                        24576

range-alloc-block-size                                     4096

read-binlog-speed-limit                                    0

read-buffer-size                                           2097152

read-only                                                  FALSE

read-rnd-buffer-size                                       1048576

relay-log                                                  (No default value)

relay-log-index                                            (No default value)

relay-log-info-file                                        relay-log.info

relay-log-purge                                            TRUE

relay-log-recovery                                         FALSE

relay-log-space-limit                                      0

replicate-annotate-row-events                              TRUE

replicate-events-marked-for-skip                           REPLICATE

replicate-same-server-id                                   FALSE

report-host                                                (No default value)

report-password                                            (No default value)

report-port                                                0

report-user                                                (No default value)

rowid-merge-buff-size                                      8388608

rpl-semi-sync-master-enabled                               FALSE

rpl-semi-sync-master-timeout                               10000

rpl-semi-sync-master-trace-level                           32

rpl-semi-sync-master-wait-no-slave                         TRUE

rpl-semi-sync-master-wait-point                            AFTER_COMMIT

rpl-semi-sync-slave-delay-master                           FALSE

rpl-semi-sync-slave-enabled                                FALSE

rpl-semi-sync-slave-kill-conn-timeout                      5

rpl-semi-sync-slave-trace-level                            32

safe-user-create                                           FALSE

secure-auth                                                TRUE

secure-file-priv                                           (No default value)

secure-timestamp                                           NO

sequence                                                   ON

server-id                                                  1

session-track-schema                                       TRUE

session-track-state-change                                 FALSE

session-track-system-variables                             autocommit,character_set_client,character_set_connection,character_set_results,time_zone

session-track-transaction-info                             OFF

show-slave-auth-info                                       FALSE

silent-startup                                             FALSE

skip-grant-tables                                          FALSE

skip-name-resolve                                          TRUE

skip-networking                                            FALSE

skip-show-database                                         FALSE

skip-slave-start                                           FALSE

slave-compressed-protocol                                  FALSE

slave-ddl-exec-mode                                        IDEMPOTENT

slave-domain-parallel-threads                              0

slave-exec-mode                                            STRICT

slave-load-tmpdir                                          /tmp

slave-max-allowed-packet                                   1073741824

slave-net-timeout                                          60

slave-parallel-max-queued                                  131072

slave-parallel-mode                                        conservative

slave-parallel-threads                                     0

slave-parallel-workers                                     0

slave-run-triggers-for-rbr                                 NO

slave-skip-errors                                          OFF

slave-sql-verify-checksum                                  TRUE

slave-transaction-retries                                  10

slave-transaction-retry-errors                             1158,1159,1160,1161,1205,1213,1429,2013,12701

slave-transaction-retry-interval                           0

slave-type-conversions                                     

slow-launch-time                                           2

slow-query-log                                             FALSE

slow-query-log-file                                        /var/log/mysql/mariadb-slow.log

socket                                                     /var/run/mysqld/mysqld.sock

sort-buffer-size                                           4194304

sql-mode                                                   STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION

sql-safe-updates                                           FALSE

ssl                                                        FALSE

ssl-ca                                                     (No default value)

ssl-capath                                                 (No default value)

ssl-cert                                                   (No default value)

ssl-cipher                                                 (No default value)

ssl-crl                                                    (No default value)

ssl-crlpath                                                (No default value)

ssl-key                                                    (No default value)

stack-trace                                                TRUE

standard-compliant-cte                                     TRUE

stored-program-cache                                       256

strict-password-validation                                 TRUE

super-large-pages                                          FALSE

symbolic-links                                             TRUE

sync-binlog                                                0

sync-frm                                                   TRUE

sync-master-info                                           10000

sync-relay-log                                             10000

sync-relay-log-info                                        10000

sysdate-is-now                                             FALSE

system-time-zone                                           UTC

system-versioning-alter-history                            ERROR

table-cache                                                400

table-definition-cache                                     400

table-open-cache                                           400

table-open-cache-instances                                 8

tc-heuristic-recover                                       OFF

tcp-keepalive-interval                                     0

tcp-keepalive-probes                                       0

tcp-keepalive-time                                         0

tcp-nodelay                                                TRUE

temp-pool                                                  TRUE

thread-cache-size                                          100

thread-concurrency                                         10

thread-handling                                            one-thread-per-connection

thread-pool-idle-timeout                                   60

thread-pool-max-threads                                    65536

thread-pool-oversubscribe                                  3

thread-pool-prio-kickup-timer                              1000

thread-pool-priority                                       auto

thread-pool-size                                           4

thread-pool-stall-limit                                    500

thread-stack                                               299008

time-format                                                %H:%i:%s

timed-mutexes                                              FALSE

tls-version                                                TLSv1.1,TLSv1.2,TLSv1.3

tmp-disk-table-size                                        18446744073709551615

tmp-memory-table-size                                      33554432

tmp-table-size                                             33554432

tmpdir                                                     /tmp

transaction-alloc-block-size                               8192

transaction-isolation                                      REPEATABLE-READ

transaction-prealloc-size                                  4096

transaction-read-only                                      FALSE

unix-socket                                                ON

updatable-views-with-limit                                 YES

use-stat-tables                                            PREFERABLY_FOR_QUERIES

user-variables                                             ON

userstat                                                   FALSE

verbose                                                    TRUE

version                                                    10.4.12-MariaDB-1:10.4.12+maria~bionic

version-comment                                            mariadb.org binary distribution

version-compile-machine                                    x86_64

version-compile-os                                         debian-linux-gnu

version-malloc-library                                     system

version-source-revision                                    ba6bfc402c352372cc1a9ec20b5dc50b2204549f

version-ssl-library                                        OpenSSL 1.1.1  11 Sep 2018

wait-timeout                                               600

wsrep-OSU-method                                           TOI

wsrep-SR-store                                             table

wsrep-auto-increment-control                               TRUE

wsrep-causal-reads                                         FALSE

wsrep-certification-rules                                  strict

wsrep-certify-nonPK                                        TRUE

wsrep-cluster-address                                      

wsrep-cluster-name                                         my_wsrep_cluster

wsrep-convert-LOCK-to-trx                                  FALSE

wsrep-data-home-dir                                        /var/lib/mysql/

wsrep-dbug-option                                          

wsrep-debug                                                NONE

wsrep-desync                                               FALSE

wsrep-dirty-reads                                          FALSE

wsrep-drupal-282555-workaround                             FALSE

wsrep-forced-binlog-format                                 NONE

wsrep-gtid-domain-id                                       0

wsrep-gtid-mode                                            FALSE

wsrep-ignore-apply-errors                                  7

wsrep-load-data-splitting                                  FALSE

wsrep-log-conflicts                                        FALSE

wsrep-max-ws-rows                                          0

wsrep-max-ws-size                                          2147483647

wsrep-mysql-replication-bundle                             0

wsrep-new-cluster                                          FALSE

wsrep-node-address                                         

wsrep-node-incoming-address                                AUTO

wsrep-node-name                                            8b6eacc7d51c

wsrep-notify-cmd                                           

wsrep-on                                                   FALSE

wsrep-patch-version                                        wsrep_26.22

wsrep-provider                                             none

wsrep-provider-options                                     

wsrep-recover                                              FALSE

wsrep-reject-queries                                       NONE

wsrep-replicate-myisam                                     FALSE

wsrep-restart-slave                                        FALSE

wsrep-retry-autocommit                                     1

wsrep-slave-FK-checks                                      TRUE

wsrep-slave-UK-checks                                      FALSE

wsrep-slave-threads                                        1

wsrep-sst-auth                                             (No default value)

wsrep-sst-donor                                            

wsrep-sst-donor-rejects-queries                            FALSE

wsrep-sst-method                                           rsync

wsrep-sst-receive-address                                  AUTO

wsrep-start-position                                       00000000-0000-0000-0000-000000000000:-1

wsrep-sync-wait                                            0

wsrep-trx-fragment-size                                    0

wsrep-trx-fragment-unit                                    bytes



To see what variables a running MySQL server is using, type

'mysqladmin variables' instead of 'mysqld --verbose --help'.
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