Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others. Starts the MariaDB database server. Usage: /usr/sbin/mariadbd [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-11.4 mariadb mariadb-11.4 mariadbd mariadbd-11.4 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 user-defined functions (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 commits in microseconds (1/1000000 sec). 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 Use 'ALL' to set all combinations. --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. --bind-address=name IP address to bind to. Several addresses may be specified, separated by a comma (,). --binlog-alter-two-phase When set, split ALTER at binary logging into 2 statements: START ALTER and COMMIT/ROLLBACK ALTER --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-expire-logs-seconds=# If non-zero, binary logs will be purged after binlog_expire_logs_seconds seconds; It and expire_logs_days are linked, such that changes in one are converted into the other. Possible purges happen at startup and at binary log rotation. --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-gtid-index Enable the creation of a GTID index for every binlog file, and the use of such index for speeding up GTID lookup in the binlog. (Defaults to on; use --skip-binlog-gtid-index to disable.) --binlog-gtid-index-page-size=# Page size to use for the binlog GTID index. --binlog-gtid-index-span-min=# Control sparseness of the binlog GTID index. If set to N, at most one index record will be added for every N bytes of binlog file written, to reduce the size of the index. Normally does not need tuning. --binlog-ignore-db=name Tells the master that updates to the given database should not be logged to the binary log. --binlog-legacy-event-pos Fill in the end_log_pos field of _all_ events in the binlog, even when doing so costs performance. Can be used in case some old application needs it for backwards compatibility. Setting this option can hurt binlog scalability. --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', 'FULL_NODUP', 'NOBLOB' or 'MINIMAL' formats. 'FULL', means that all columns in the before and after image are logged. 'FULL_NODUP', means that all columns are logged in before image, but only changed columns or all columns of inserted record are logged in after image, '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-row-metadata=name Controls whether metadata is logged using FULL , MINIMAL format and NO_LOG.FULL causes all metadata to be logged; MINIMAL means that only metadata actually required by slave is logged; NO_LOG NO metadata will be logged.Default: NO_LOG. --binlog-space-limit=# Alias for max_binlog_total_size. Compatibility with Percona server. --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. --block-encryption-mode=name Default block encryption mode for AES_ENCRYPT() and AES_DECRYPT() functions. One of: aes-128-ecb, aes-192-ecb, aes-256-ecb, aes-128-cbc, aes-192-cbc, aes-256-cbc, aes-128-ctr, aes-192-ctr, aes-256-ctr --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-collations=name Overrides for character set default collations. --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 crashes -h, --datadir=name Path to the database root directory --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-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, EXTENDED_MORE, EXTRA, MULTILINE, UNGREEDY Use 'ALL' to set all combinations. --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; It and binlog_expire_logs_seconds are linked, such that changes in one are converted into the other, presentable as a decimal value with 1/1000000 of the day precision; 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. (Defaults to on; use --skip-explicit-defaults-for-timestamp to disable.) --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. When ON the same server-id semisync-replicated transactions that duplicate existing ones in binlog are ignored without error and slave interruption. -?, --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, JSON_HB - height-balanced, stored as JSON. --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 (disabled by default). --innodb-adaptive-hash-index-parts[=#] Number of InnoDB Adaptive Hash Index Partitions (default 8) --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-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 for resizing buffer pool. Online buffer pool resizing happens at this granularity. 0 means autosize this variable based on buffer pool size. --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-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-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 previously used algorithms to match when reading; STRICT_CRC32 write crc32, do not allow other algorithms to match when reading; New files created with full_crc32 are readable by MariaDB 10.4.3+ --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-compression-algorithm[=name] Compression algorithm used on page compression. One of: none, zlib, lz4, lzo, lzma, bzip2, or snappy --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-data-file-buffering Whether the file system cache for data files is enabled --innodb-data-file-path=name Path to individual files and their sizes. --innodb-data-file-write-through Whether each write to data files writes through --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-deadlock-report=name How to report deadlocks (if innodb_deadlock_detect=ON).. One of: off, basic, full --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-disable-sort-file-cache Whether to disable OS system file cache for sort I/O --innodb-doublewrite[=name] Whether and how to use the doublewrite buffer. OFF=Assume that writes of innodb_page_size are atomic; ON=Prevent torn writes (the default); fast=Like ON, but do not synchronize writes to data files --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 --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-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-primary-key Do not allow creating a 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. Value 5 can return bogus data, and 6 can permanently corrupt data. --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-immediate-scrub-data-uncompressed Enable scrubbing of data --innodb-instant-alter-column-allowed=name File format constraint for ALTER TABLE. One of: never, add_last, add_drop_reorder --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-lock-wait-timeout=# Timeout in seconds an InnoDB transaction may wait for a lock before being rolled back. The value 100000000 is infinite 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-log-buffer-size=# Redo log buffer size in bytes. --innodb-log-file-buffering Whether the file system cache for ib_logfile0 is enabled --innodb-log-file-size=# Redo log size in bytes. --innodb-log-file-write-through Whether each write to ib_logfile0 is write through --innodb-log-group-home-dir=name Path to ib_logfile0 --innodb-log-spin-wait-delay[=#] Delay between log buffer spin lock polls (0 to use a blocking latch) --innodb-lru-flush-size=# How many pages to flush on LRU eviction --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. The value 0 (default) means 'refer to innodb_max_dirty_pages_pct'. --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-purge-lag-wait=# Wait until History list length is below the specified limit --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-numa-interleave Use NUMA interleave memory policy to allocate InnoDB buffer pool. --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-size[=#] Page size to use for all InnoDB tablespaces. --innodb-prefix-index-cluster-optimization Deprecated parameter with no effect (Defaults to on; use --skip-innodb-prefix-index-cluster-optimization to disable.) --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[=#] Deprecated parameter with no effect --innodb-purge-threads[=#] Number of tasks for purging transaction history --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-read-only-compressed Make ROW_FORMAT=COMPRESSED tables read-only --innodb-rollback-on-timeout Roll back the complete transaction on lock wait timeout, for 4.x compatibility (disabled by default) --innodb-snapshot-isolation Use snapshot isolation (write-write conflict detection). --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-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. 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-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-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-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-temp-data-file-path=name Path to files and their sizes making temp-tablespace. --innodb-tmpdir[=name] Directory for temporary non-tablespace files. --innodb-truncate-temporary-tablespace-now Shrink the temporary tablespace --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-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. (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-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-ddl-recovery=name Path to file used for recovery of DDL statements after a crash --log-disabled-statements=name Don't log certain types of statements to general log. Any combination of: slave, sp Use 'ALL' to set all combinations. --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 Use 'ALL' to set all combinations. --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_filter. Deprecated, use log_slow_filter without 'admin'. (Defaults to on; use --skip-log-slow-admin-statements to disable.) --log-slow-disabled-statements=name Don't log certain types of statements to slow log. Any combination of: admin, call, slave, sp Use 'ALL' to set all combinations. --log-slow-filter=name Log only certain types of queries to the slow log. If variable empty all 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 Use 'ALL' to set all combinations. --log-slow-max-warnings=# Max numbers of warnings printed to slow query log per statement --log-slow-min-examined-row-limit=# Don't write queries to slow log that examine fewer rows than that --log-slow-query 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. --log-slow-query-file=name Log slow queries to given log file. Defaults logging to 'hostname'-slow.log. Must be enabled to activate other slow log options --log-slow-query-time=# Log all queries that have taken more than log_slow_query_time seconds to execute to the slow query log file. The argument will be treated as a decimal value with microsecond precision --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 (Defaults to on; use --skip-log-slow-slave-statements to disable.) --log-slow-verbosity=name Verbosity level for the slow log. Any combination of: innodb, query_plan, explain, engine, warnings, full Use 'ALL' to set all combinations. --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 non critical warnings to the error log.Value can be between 0 and 11. Higher values mean more verbosity --long-query-time=# Alias for log_slow_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-binlog-total-size=# Maximum space to use for all binary logs. Extra logs are deleted on server start, log rotation, FLUSH LOGS or when writing to binlog. Default is 0, which means no size restrictions. See also slave_connections_needed_for_purge --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-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-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=# Alias for log_slow_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 --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 Use 'ALL' to set all combinations. --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 --note-verbosity=name Verbosity level for note-warnings given to the user. See also @@sql_notes.. Any combination of: basic, unusable_keys, explain Use 'ALL' to set all combinations. --old Use compatible behavior from previous MariaDB version. See also --old-mode --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, UTF8_IS_UTF8MB3, IGNORE_INDEX_ONLY_FOR_JOIN, COMPAT_5_1_CHECKSUM, NO_NULL_COLLATION_IDS, LOCK_ALTER_TABLE_COPY Use 'ALL' to set all combinations. --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-adjust-secondary-key-costs=# Unused, will be removed. --optimizer-disk-read-cost=# Cost of reading a block of IO_SIZE (4096) from a disk (in usec). --optimizer-disk-read-ratio=# Chance that we have to do a disk read to find a row or index entry from the engine cache (cache_misses/total_cache_requests). 0.0 means that everything is cached and 1.0 means that nothing is expected to be in the engine cache. --optimizer-extra-pruning-depth=# If the optimizer needs to enumerate join prefix of this size or larger, then it will try aggressively prune away the search space. --optimizer-index-block-copy-cost=# Cost of copying a key block from the cache to intern storage as part of an index scan. --optimizer-key-compare-cost=# Cost of checking a key against the end key condition. --optimizer-key-copy-cost=# Cost of finding the next key in the engine and copying it to the SQL layer. --optimizer-key-lookup-cost=# Cost for finding a key based on a key value --optimizer-key-next-find-cost=# Cost of finding the next key and rowid when using filters. --optimizer-max-sel-arg-weight=# The maximum weight of the SEL_ARG graph. Set to 0 for no limit --optimizer-max-sel-args=# The maximum number of SEL_ARG objects created when optimizing a range. If more objects would be needed, the range will not be used by the optimizer. --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 cost and number of retrieved rows eq_ref: 2 - prune also if we find an eq_ref chain --optimizer-row-copy-cost=# Cost of copying a row from the engine or the join cache to the SQL layer. --optimizer-row-lookup-cost=# Cost of finding a row based on a rowid or a clustered key. --optimizer-row-next-find-cost=# Cost of finding the next row when scanning the table. --optimizer-rowid-compare-cost=# Cost of comparing two rowid's --optimizer-rowid-copy-cost=# Cost of copying a rowid --optimizer-scan-setup-cost=# Extra cost added to TABLE and INDEX scans to get optimizer to prefer index lookups. --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, 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, not_null_range_scan, hash_join_cardinality, cset_narrowing, sargable_casefold --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 --optimizer-where-cost=# Cost of checking the row against the WHERE clause. Increasing this will have the optimizer to prefer plans with less row combinations. --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. --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-transactions-current Default startup value for the events_transactions_current consumer. --performance-schema-consumer-events-transactions-history Default startup value for the events_transactions_history consumer. --performance-schema-consumer-events-transactions-history-long Default startup value for the events_transactions_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-transactions-history-long-size=# Number of rows in EVENTS_TRANSACTIONS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. --performance-schema-events-transactions-history-size=# Number of rows per thread in EVENTS_TRANSACTIONS_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-index-stat=# Maximum number of index statistics for instrumented tables. Use 0 to disable, -1 for automated scaling. --performance-schema-max-memory-classes=# Maximum number of memory pool instruments. --performance-schema-max-metadata-locks=# Maximum number of metadata locks. Use 0 to disable, -1 for automated scaling. --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-prepared-statements-instances=# Maximum number of instrumented prepared statements. Use 0 to disable, -1 for automated scaling. --performance-schema-max-program-instances=# Maximum number of instrumented programs. Use 0 to disable, -1 for automated scaling. --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-sql-text-length=# Maximum length of displayed sql text. --performance-schema-max-stage-classes=# Maximum number of stage instruments. --performance-schema-max-statement-classes=# Maximum number of statement instruments. --performance-schema-max-statement-stack=# Number of rows per thread in EVENTS_STATEMENTS_CURRENT. --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-table-lock-stat=# Maximum number of lock statistics for instrumented tables. Use 0 to disable, -1 for automated scaling. --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 'READ ONLY ADMIN' 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 --redirect-url=name URL of another server to redirect clients to. Empty string means no redirection --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 --require-secure-transport When this option is enabled, connections attempted using insecure transport will be rejected. Secure transports are SSL/TLS, Unix sockets or named pipes. --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 is available. (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-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-connections-needed-for-purge=# Minimum number of connected slaves required for automatic binary log purge with max_binlog_total_size, binlog_expire_logs_seconds or binlog_expire_logs_days. --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-max-statement-time=# A query that has taken more than slave_max_statement_time seconds to run on the slave will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout --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, LOGGING and ENFORCE. 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. ENFORCE means that triggers will always be run on the slave, even if there are triggers on the master. ENFORCE implies LOGGING. --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 Use 'ALL' to set all combinations. --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 Alias for log_slow_query. 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 Alias for log_slow_query_file. 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 Use 'ALL' to set all combinations. --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). (Defaults to on; use --skip-ssl to disable.) --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.) -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 --system-versioning-insert-history Allows direct inserts into ROW_START and ROW_END columns if secure_timestamp allows changing @@timestamp --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 seconds, 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. Deprecated. --thread-cache-size=# How many threads we should keep in a cache for reuse. These are freed after 5 minutes of idle time --thread-handling=name Define threads usage for handling queries. One of: one-thread-per-connection, no-threads, pool-of-threads --thread-pool-dedicated-listener If set to 1,listener thread will not pick up queries --thread-pool-exact-stats If set to 1, provides better statistics in information_schema threadpool tables --thread-pool-groups[=name] Enable or disable THREAD_POOL_GROUPS 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). --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-queues[=name] Enable or disable THREAD_POOL_QUEUES 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). --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-pool-stats[=name] Enable or disable THREAD_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). --thread-pool-waits[=name] Enable or disable THREAD_POOL_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). --thread-stack=# The stack size for each thread --tls-version=name TLS protocol version for secure connections.. Any combination of: TLSv1.0, TLSv1.1, TLSv1.2, TLSv1.3 Use 'ALL' to set all combinations. --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-allowlist=name Allowed IP addresses split by comma delimiter --wsrep-auto-increment-control To automatically control the assignment of autoincrement variables (Defaults to on; use --skip-wsrep-auto-increment-control to disable.) --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-mode=name Set of WSREP features that are enabled.. Any combination of: STRICT_REPLICATION, BINLOG_ROW_FORMAT_ONLY, REQUIRED_PRIMARY_KEY, REPLICATE_MYISAM, REPLICATE_ARIA, DISALLOW_LOCAL_GTID, BF_ABORT_MARIABACKUP Use 'ALL' to set all combinations. --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[=name] Enable or disable wsrep_provider 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). --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-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-status-file=name wsrep status output filename --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 0 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 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 80 basedir /usr big-tables FALSE bind-address 127.0.0.1 binlog-alter-two-phase FALSE 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-expire-logs-seconds 864000 binlog-file-cache-size 16384 binlog-format MIXED binlog-gtid-index TRUE binlog-gtid-index-page-size 4096 binlog-gtid-index-span-min 65536 binlog-legacy-event-pos FALSE binlog-optimize-thread-scheduling TRUE binlog-row-event-max-size 8192 binlog-row-image FULL binlog-row-metadata NO_LOG binlog-space-limit 0 binlog-stmt-cache-size 32768 block-encryption-mode aes-128-ecb bulk-insert-buffer-size 8388608 character-set-client-handshake TRUE character-set-collations utf8mb4=uca1400_ai_ci character-set-filesystem binary character-set-server utf8mb4 character-sets-dir /usr/share/mariadb/charsets/ chroot (No default value) collation-server utf8mb4_general_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 AUTO connect-timeout 10 console FALSE core-file FALSE datadir /var/lib/mysql/ 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-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 TRUE 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://feedback.mariadb.org/rest/v1/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 HOSTNAME.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 JSON_HB host-cache-size 279 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 FALSE innodb-adaptive-hash-index-parts 8 innodb-autoextend-increment 64 innodb-autoinc-lock-mode 1 innodb-buf-dump-status-frequency 0 innodb-buffer-page ON innodb-buffer-page-lru ON innodb-buffer-pool-chunk-size 0 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-load-abort FALSE innodb-buffer-pool-load-at-startup TRUE innodb-buffer-pool-load-now FALSE innodb-buffer-pool-size 134217728 innodb-buffer-pool-stats ON innodb-checksum-algorithm full_crc32 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-compression-algorithm zlib innodb-compression-default FALSE innodb-compression-failure-threshold-pct 5 innodb-compression-level 6 innodb-compression-pad-pct-max 50 innodb-data-file-buffering FALSE innodb-data-file-path ibdata1:12M:autoextend innodb-data-file-write-through FALSE innodb-data-home-dir (No default value) innodb-deadlock-detect TRUE innodb-deadlock-report full innodb-default-encryption-key-id 1 innodb-default-row-format dynamic innodb-disable-sort-file-cache FALSE innodb-doublewrite ON 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-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-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-immediate-scrub-data-uncompressed FALSE innodb-instant-alter-column-allowed add_drop_reorder innodb-io-capacity 200 innodb-io-capacity-max 18446744073709551615 innodb-lock-wait-timeout 50 innodb-lock-waits ON innodb-locks ON innodb-log-buffer-size 16777216 innodb-log-file-buffering FALSE innodb-log-file-size 100663296 innodb-log-file-write-through FALSE innodb-log-group-home-dir (No default value) innodb-log-spin-wait-delay 0 innodb-lru-flush-size 32 innodb-lru-scan-depth 1536 innodb-max-dirty-pages-pct 90 innodb-max-dirty-pages-pct-lwm 0 innodb-max-purge-lag 0 innodb-max-purge-lag-delay 0 innodb-max-purge-lag-wait 4294967295 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-numa-interleave FALSE innodb-old-blocks-pct 37 innodb-old-blocks-time 1000 innodb-online-alter-log-max-size 134217728 innodb-open-files 0 innodb-optimize-fulltext-only FALSE innodb-page-size 16384 innodb-prefix-index-cluster-optimization TRUE innodb-print-all-deadlocks FALSE innodb-purge-batch-size 1000 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-read-only-compressed FALSE innodb-rollback-on-timeout FALSE innodb-snapshot-isolation FALSE 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-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-spin-loops 30 innodb-sys-columns ON innodb-sys-fields ON innodb-sys-foreign ON innodb-sys-foreign-cols ON innodb-sys-indexes 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-temp-data-file-path ibtmp1:12M:autoextend innodb-tmpdir (No default value) innodb-truncate-temporary-tablespace-now FALSE innodb-trx ON innodb-undo-directory (No default value) innodb-undo-log-truncate FALSE innodb-undo-tablespaces 3 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 (No default value) lc-time-names en_US local-infile TRUE lock-wait-timeout 86400 log-basename HOSTNAME 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-ddl-recovery ddl_recovery.log 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-max-warnings 10 log-slow-min-examined-row-limit 0 log-slow-query FALSE log-slow-query-file HOSTNAME-slow.log log-slow-query-time 10 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 100000 master-verify-checksum FALSE max-allowed-packet 16777216 max-binlog-cache-size 18446744073709547520 max-binlog-size 1073741824 max-binlog-stmt-cache-size 18446744073709547520 max-binlog-total-size 0 max-connect-errors 100 max-connections 151 max-delayed-threads 20 max-digest-length 1024 max-error-count 64 max-heap-table-size 16777216 max-join-size 18446744073709551615 max-length-for-sort-data 1024 max-password-errors 4294967295 max-prepared-stmt-count 16382 max-recursive-iterations 1000 max-relay-log-size 1073741824 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-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 myisam-block-size 1024 myisam-data-pointer-size 6 myisam-max-sort-file-size 18446744073709551615 myisam-mmap-size 9223372036853727232 myisam-recover-options BACKUP,QUICK myisam-repair-threads 1 myisam-sort-buffer-size 134216704 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 note-verbosity basic,explain old FALSE old-mode UTF8_IS_UTF8MB3 old-passwords FALSE old-style-user-limits FALSE open-files-limit 32000 optimizer-adjust-secondary-key-costs 0 optimizer-disk-read-cost 10.24 optimizer-disk-read-ratio 0.02 optimizer-extra-pruning-depth 8 optimizer-index-block-copy-cost 0.0356 optimizer-key-compare-cost 0.011361 optimizer-key-copy-cost 0.015685 optimizer-key-lookup-cost 0.435777 optimizer-key-next-find-cost 0.082347 optimizer-max-sel-arg-weight 32000 optimizer-max-sel-args 16000 optimizer-prune-level 2 optimizer-row-copy-cost 0.060866 optimizer-row-lookup-cost 0.130839 optimizer-row-next-find-cost 0.045916 optimizer-rowid-compare-cost 0.002653 optimizer-rowid-copy-cost 0.002653 optimizer-scan-setup-cost 10 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,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,not_null_range_scan=off,hash_join_cardinality=on,cset_narrowing=off,sargable_casefold=on optimizer-trace optimizer-trace-max-mem-size 1048576 optimizer-use-condition-selectivity 4 optimizer-where-cost 0.032 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 FALSE performance-schema-consumer-events-statements-history FALSE performance-schema-consumer-events-statements-history-long FALSE performance-schema-consumer-events-transactions-current FALSE performance-schema-consumer-events-transactions-history FALSE performance-schema-consumer-events-transactions-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-transactions-history-long-size -1 performance-schema-events-transactions-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 80 performance-schema-max-file-handles 32768 performance-schema-max-file-instances -1 performance-schema-max-index-stat -1 performance-schema-max-memory-classes 320 performance-schema-max-metadata-locks -1 performance-schema-max-mutex-classes 210 performance-schema-max-mutex-instances -1 performance-schema-max-prepared-statements-instances -1 performance-schema-max-program-instances -1 performance-schema-max-rwlock-classes 50 performance-schema-max-rwlock-instances -1 performance-schema-max-socket-classes 10 performance-schema-max-socket-instances -1 performance-schema-max-sql-text-length 1024 performance-schema-max-stage-classes 160 performance-schema-max-statement-classes 222 performance-schema-max-statement-stack 10 performance-schema-max-table-handles -1 performance-schema-max-table-instances -1 performance-schema-max-table-lock-stat -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 -1 performance-schema-setup-objects-size -1 performance-schema-users-size -1 pid-file /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 1048576 query-cache-min-res-unit 4096 query-cache-size 1048576 query-cache-strip-comments FALSE query-cache-type OFF query-cache-wlock-invalidate FALSE query-prealloc-size 24576 range-alloc-block-size 4096 read-binlog-speed-limit 0 read-buffer-size 131072 read-only FALSE read-rnd-buffer-size 262144 redirect-url 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) require-secure-transport FALSE 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,redirect_url,time_zone session-track-transaction-info OFF show-slave-auth-info FALSE silent-startup FALSE skip-grant-tables FALSE skip-name-resolve FALSE skip-networking FALSE skip-show-database FALSE skip-slave-start FALSE slave-compressed-protocol FALSE slave-connections-needed-for-purge 1 slave-ddl-exec-mode IDEMPOTENT slave-domain-parallel-threads 0 slave-exec-mode STRICT slave-load-tmpdir /tmp slave-max-allowed-packet 1073741824 slave-max-statement-time 0 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 1158,1159,1160,1161,1205,1213,1020,1429,2013,12701 slave-transaction-retry-interval 0 slave-type-conversions slow-launch-time 2 slow-query-log FALSE slow-query-log-file HOSTNAME-slow.log socket /run/mysqld/mysqld.sock sort-buffer-size 2097152 sql-mode STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION sql-safe-updates FALSE ssl TRUE 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 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 system-versioning-insert-history FALSE table-cache 2000 table-definition-cache 400 table-open-cache 2000 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 FALSE thread-cache-size 151 thread-handling one-thread-per-connection thread-pool-dedicated-listener FALSE thread-pool-exact-stats FALSE thread-pool-groups ON 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-queues ON thread-pool-size 2 thread-pool-stall-limit 500 thread-pool-stats ON thread-pool-waits ON thread-stack 299008 tls-version TLSv1.2,TLSv1.3 tmp-disk-table-size 18446744073709551615 tmp-memory-table-size 16777216 tmp-table-size 16777216 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 VERSION version-comment Debian RELEASE version-compile-machine ARCH version-compile-os debian-linux-gnu version-malloc-library system version-source-revision - version-ssl-library SSL-VERSION wait-timeout 28800 wsrep-OSU-method TOI wsrep-SR-store table wsrep-allowlist wsrep-auto-increment-control TRUE 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-mode wsrep-mysql-replication-bundle 0 wsrep-new-cluster FALSE wsrep-node-address wsrep-node-incoming-address AUTO wsrep-node-name HOSTNAME wsrep-notify-cmd wsrep-on FALSE wsrep-patch-version wsrep_26.22 wsrep-provider none wsrep-provider ON wsrep-provider-options wsrep-recover FALSE wsrep-reject-queries NONE 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-status-file wsrep-sync-wait 0 wsrep-trx-fragment-size 0 wsrep-trx-fragment-unit bytes To see what variables a running server is using, type 'SELECT * FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES' instead of 'mysqld --verbose --help' or 'mariadbd --verbose --help'.