EVOLUTION-MANAGER

Edit File: mysqld--help.result

Windows bug: happens when a new line is exactly at the right offset. The following options may be given as the first argument: --print-defaults Print the program argument list and exit. --no-defaults Don't read default options from any option file. The following specify which files/extra groups are read (specified before remaining options): --defaults-file=# Only read default options from the given file #. --defaults-extra-file=# Read this file after the global files are read. --defaults-group-suffix=# Additionally read default groups with # appended as a suffix. --allow-suspicious-udfs Allows use of UDFs consisting of only one symbol xxx() without corresponding xxx_init() or xxx_deinit(). That also means that one can load any function from any library, for example exit() from libc.so --alter-algorithm[=name] Specify the alter table algorithm. One of: DEFAULT, COPY, INPLACE, NOCOPY, INSTANT -a, --ansi Use ANSI SQL syntax instead of MySQL syntax. This mode will also set transaction isolation level 'serializable'. --auto-increment-increment[=#] Auto-increment columns are incremented by this --auto-increment-offset[=#] Offset added to Auto-increment columns. Used when auto-increment-increment != 1 --autocommit Set default value for autocommit (0 or 1) (Defaults to on; use --skip-autocommit to disable.) --automatic-sp-privileges Creating and dropping stored procedures alters ACLs (Defaults to on; use --skip-automatic-sp-privileges to disable.) --back-log=# The number of outstanding connection requests MariaDB can have. This comes into play when the main MariaDB thread gets very many connection requests in a very short time (Automatically configured unless set explicitly) -b, --basedir=name Path to installation directory. All paths are usually resolved relative to this --big-tables Old variable, which if set to 1, allows large result sets by saving all temporary sets to disk, avoiding 'table full' errors. No longer needed, as the server now handles this automatically. sql_big_tables is a synonym. --bind-address=name IP address to bind to. --binlog-annotate-row-events Tells the master to annotate RBR events with the statement that caused these events (Defaults to on; use --skip-binlog-annotate-row-events to disable.) --binlog-cache-size=# The size of the transactional cache for updates to transactional engines for the binary log. If you often use transactions containing many statements, you can increase this to get more performance --binlog-checksum=name Type of BINLOG_CHECKSUM_ALG. Include checksum for log events in the binary log. One of: NONE, CRC32 --binlog-commit-wait-count=# If non-zero, binlog write will wait at most binlog_commit_wait_usec microseconds for at least this many commits to queue up for group commit to the binlog. This can reduce I/O on the binlog and provide increased opportunity for parallel apply on the slave, but too high a value will decrease commit throughput. --binlog-commit-wait-usec=# Maximum time, in microseconds, to wait for more commits to queue up for binlog group commit. Only takes effect if the value of binlog_commit_wait_count is non-zero. --binlog-direct-non-transactional-updates Causes updates to non-transactional engines using statement format to be written directly to binary log. Before using this option make sure that there are no dependencies between transactional and non-transactional tables such as in the statement INSERT INTO t_myisam SELECT * FROM t_innodb; otherwise, slaves may diverge from the master. --binlog-do-db=name Tells the master it should log updates for the specified database, and exclude all others not explicitly mentioned. --binlog-file-cache-size=# The size of file cache for the binary log --binlog-format=name What form of binary logging the master will use: either ROW for row-based binary logging, STATEMENT for statement-based binary logging, or MIXED. MIXED is statement-based binary logging except for those statements where only row-based is correct: those which involve user-defined functions (i.e. UDFs) or the UUID() function; for those, row-based binary logging is automatically used. --binlog-ignore-db=name Tells the master that updates to the given database should not be logged to the binary log. --binlog-optimize-thread-scheduling Run fast part of group commit in a single thread, to optimize kernel thread scheduling. On by default. Disable to run each transaction in group commit in its own thread, which can be slower at very high concurrency. This option is mostly for testing one algorithm versus the other, and it should not normally be necessary to change it. (Defaults to on; use --skip-binlog-optimize-thread-scheduling to disable.) --binlog-row-event-max-size=# The maximum size of a row-based binary log event in bytes. Rows will be grouped into events smaller than this size if possible. The value has to be a multiple of 256. --binlog-row-image=name Controls whether rows should be logged in 'FULL', 'NOBLOB' or 'MINIMAL' formats. 'FULL', means that all columns in the before and after image are logged. 'NOBLOB', means that mysqld avoids logging blob columns whenever possible (eg, blob column was not changed or is not part of primary key). 'MINIMAL', means that a PK equivalent (PK columns or full row if there is no PK in the table) is logged in the before image, and only changed columns are logged in the after image. (Default: FULL). --binlog-stmt-cache-size=# The size of the statement cache for updates to non-transactional engines for the binary log. If you often use statements updating a great number of rows, you can increase this to get more performance. --bootstrap Used by mysql installation scripts. --bulk-insert-buffer-size=# Size of tree cache used in bulk insert optimisation. Note that this is a limit per thread! --character-set-client-handshake Don't ignore client side character set value sent during handshake. (Defaults to on; use --skip-character-set-client-handshake to disable.) --character-set-filesystem=name Set the filesystem character set. -C, --character-set-server=name Set the default character set. --character-sets-dir=name Directory where character sets are -r, --chroot=name Chroot mysqld daemon during startup. --collation-server=name Set the default collation. --column-compression-threshold=# Minimum column data length eligible for compression --column-compression-zlib-level=# zlib compression level (1 gives best speed, 9 gives best compression) --column-compression-zlib-strategy=name The strategy parameter is used to tune the compression algorithm. Use the value DEFAULT_STRATEGY for normal data, FILTERED for data produced by a filter (or predictor), HUFFMAN_ONLY to force Huffman encoding only (no string match), or RLE to limit match distances to one (run-length encoding). Filtered data consists mostly of small values with a somewhat random distribution. In this case, the compression algorithm is tuned to compress them better. The effect of FILTERED is to force more Huffman coding and less string matching; it is somewhat intermediate between DEFAULT_STRATEGY and HUFFMAN_ONLY. RLE is designed to be almost as fast as HUFFMAN_ONLY, but give better compression for PNG image data. The strategy parameter only affects the compression ratio but not the correctness of the compressed output even if it is not set appropriately. FIXED prevents the use of dynamic Huffman codes, allowing for a simpler decoder for special applications. --column-compression-zlib-wrap Generate zlib header and trailer and compute adler32 check value. It can be used with storage engines that don't provide data integrity verification to detect data corruption. --completion-type=name The transaction completion type. One of: NO_CHAIN, CHAIN, RELEASE --concurrent-insert[=name] Use concurrent insert with MyISAM. One of: NEVER, AUTO, ALWAYS --console Write error output on screen; don't remove the console window on windows. --core-file Write core on errors. -h, --datadir=name Path to the database root directory --date-format=name The DATE format (ignored) --datetime-format=name The DATETIME format (ignored) --deadlock-search-depth-long=# Long search depth for the two-step deadlock detection --deadlock-search-depth-short=# Short search depth for the two-step deadlock detection --deadlock-timeout-long=# Long timeout for the two-step deadlock detection (in microseconds) --deadlock-timeout-short=# Short timeout for the two-step deadlock detection (in microseconds) --default-regex-flags=name Default flags for the regex library. Any combination of: DOTALL, DUPNAMES, EXTENDED, EXTRA, MULTILINE, UNGREEDY --default-storage-engine=name The default storage engine for new tables --default-time-zone=name Set the default time zone. --default-tmp-storage-engine=name The default storage engine for user-created temporary tables --default-week-format=# The default week format used by WEEK() functions --delay-key-write[=name] Specifies how MyISAM tables handles CREATE TABLE DELAY_KEY_WRITE. If set to ON, the default, any DELAY KEY WRITEs are honored. The key buffer is then flushed only when the table closes, speeding up writes. MyISAM tables should be automatically checked upon startup in this case, and --external locking should not be used, as it can lead to index corruption. If set to OFF, DELAY KEY WRITEs are ignored, while if set to ALL, all new opened tables are treated as if created with DELAY KEY WRITEs enabled. --delayed-insert-limit=# After inserting delayed_insert_limit rows, the INSERT DELAYED handler will check if there are any SELECT statements pending. If so, it allows these to execute before continuing. --delayed-insert-timeout=# How long a INSERT DELAYED thread should wait for INSERT statements before terminating --delayed-queue-size=# What size queue (in rows) should be allocated for handling INSERT DELAYED. If the queue becomes full, any client that does INSERT DELAYED will wait until there is room in the queue again --div-precision-increment=# Precision of the result of '/' operator will be increased on that value --encrypt-binlog Encrypt binary logs (including relay logs) --encrypt-tmp-disk-tables Encrypt temporary on-disk tables (created as part of query execution) --encrypt-tmp-files Encrypt temporary files (created for filesort, binary log cache, etc) --enforce-storage-engine=name Force the use of a storage engine for new tables --eq-range-index-dive-limit=# The optimizer will use existing index statistics instead of doing index dives for equality ranges if the number of equality ranges for the index is larger than or equal to this number. If set to 0, index dives are always used. --event-scheduler[=name] Enable the event scheduler. Possible values are ON, OFF, and DISABLED (keep the event scheduler completely deactivated, it cannot be activated run-time) --expensive-subquery-limit=# The maximum number of rows a subquery may examine in order to be executed during optimization and used for constant optimization --expire-logs-days=# If non-zero, binary logs will be purged after expire_logs_days days; possible purges happen at startup and at binary log rotation --explicit-defaults-for-timestamp This option causes CREATE TABLE to create all TIMESTAMP columns as NULL with DEFAULT NULL attribute, Without this option, TIMESTAMP columns are NOT NULL and have implicit DEFAULT clauses. --external-locking Use system (external) locking (disabled by default). With this option enabled you can run myisamchk to test (not repair) tables while the MySQL server is running. Disable with --skip-external-locking. --extra-max-connections=# The number of connections on extra-port --extra-port=# Extra port number to use for tcp connections in a one-thread-per-connection manner. 0 means don't use another port --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 --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-domain-id=# Used with global transaction ID to identify logically independent replication streams. When events can propagate through multiple parallel paths (for example multiple masters), each independent source server must use a distinct domain_id. For simple tree-shaped replication topologies, it can be left at its default, 0. --gtid-ignore-duplicates When set, different master connections in multi-source replication are allowed to receive and process event groups with the same GTID (when using GTID mode). Only one will be applied, any others will be ignored. Within a given replication domain, just the sequence number will be used to decide whether a given GTID has been already applied; this means it is the responsibility of the user to ensure that GTID sequence numbers are strictly increasing. --gtid-pos-auto-engines=name List of engines for which to automatically create a mysql.gtid_slave_pos_ENGINE table, if a transaction using that engine is replicated. This can be used to avoid introducing cross-engine transactions, if engines are used different from that used by table mysql.gtid_slave_pos --gtid-strict-mode Enforce strict seq_no ordering of events in the binary log. Slave stops with an error if it encounters an event that would cause it to generate an out-of-order binlog if executed. -?, --help Display this help and exit. --histogram-size=# Number of bytes used for a histogram. If set to 0, no histograms are created by ANALYZE. --histogram-type=name Specifies type of the histograms created by ANALYZE. Possible values are: SINGLE_PREC_HB - single precision height-balanced, DOUBLE_PREC_HB - double precision height-balanced. --host-cache-size=# How many host names should be cached to avoid resolving. (Automatically configured unless set explicitly) --idle-readonly-transaction-timeout=# The number of seconds the server waits for read-only idle transaction --idle-transaction-timeout=# The number of seconds the server waits for idle transaction --idle-write-transaction-timeout=# The number of seconds the server waits for write idle transaction --ignore-builtin-innodb Disable initialization of builtin InnoDB plugin --ignore-db-dirs=name Specifies a directory to add to the ignore list when collecting database names from the datadir. Put a blank argument to reset the list accumulated so far. --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 --interactive-timeout=# The number of seconds the server waits for activity on an interactive connection before closing it --join-buffer-size=# The size of the buffer that is used for joins --join-buffer-space-limit=# The limit of the space for all join buffers used by a query --join-cache-level=# Controls what join operations can be executed with join buffers. Odd numbers are used for plain join buffers while even numbers are used for linked buffers --keep-files-on-create Don't overwrite stale .MYD and .MYI even if no directory is specified --key-buffer-size=# The size of the buffer used for index blocks for MyISAM tables. Increase this to get better index handling (for all reads and multiple writes) to as much as you can afford --key-cache-age-threshold=# This characterizes the number of hits a hot block has to be untouched until it is considered aged enough to be downgraded to a warm block. This specifies the percentage ratio of that number of hits to the total number of blocks in key cache --key-cache-block-size=# The default size of key cache blocks --key-cache-division-limit=# The minimum percentage of warm blocks in key cache --key-cache-file-hash-size=# Number of hash buckets for open and changed files. If you have a lot of MyISAM files open you should increase this for faster flush of changes. A good value is probably 1/10 of number of possible open MyISAM files. --key-cache-segments=# The number of segments in a key cache -L, --language=name Client error messages in given language. May be given as a full path. Deprecated. Use --lc-messages-dir instead. --large-pages Enable support for large pages --lc-messages=name Set the language used for the error messages. -L, --lc-messages-dir=name Directory where error messages are --lc-time-names=name Set the language used for the month names and the days of the week. --local-infile Enable LOAD DATA LOCAL INFILE (Defaults to on; use --skip-local-infile to disable.) --lock-wait-timeout=# Timeout in seconds to wait for a lock before returning an error. --log-basename=name Basename for all log files and the .pid file. This sets all log file names at once (in 'datadir') and is normally the only option you need for specifying log files. Sets names for --log-bin, --log-bin-index, --relay-log, --relay-log-index, --general-log-file, --log-slow-query-log-file, --log-error-file, and --pid-file --log-bin[=name] Log update queries in binary format. Optional argument should be name for binary log. If not given 'datadir'/'log-basename'-bin or 'datadir'/mysql-bin will be used (the later if --log-basename is not specified). We strongly recommend to use either --log-basename or specify a filename to ensure that replication doesn't stop if the real hostname of the computer changes. --log-bin-compress Whether the binary log can be compressed --log-bin-compress-min-len[=#] Minimum length of sql statement(in statement mode) or record(in row mode)that can be compressed. --log-bin-index=name File that holds the names for last binary log files. --log-bin-trust-function-creators If set to FALSE (the default), then when --log-bin is used, creation of a stored function (or trigger) is allowed only to users having the SUPER privilege and only if this stored function (trigger) may not break binary logging. Note that if ALL connections to this server ALWAYS use row-based binary logging, the security issues do not exist and the binary logging cannot break, so you can safely set this to TRUE --log-disabled-statements=name Don't log certain types of statements to general log. Any combination of: slave, sp --log-error[=name] Log errors to file (instead of stdout). If file name is not specified then 'datadir'/'log-basename'.err or the 'pid-file' path with extension .err is used --log-isam[=name] Log all MyISAM changes to file. --log-output=name How logs should be written. Any combination of: NONE, FILE, TABLE --log-queries-not-using-indexes Log queries that are executed without benefit of any index to the slow log if it is open. Same as log_slow_filter='not_using_index' --log-short-format Don't log extra information to update and slow-query logs. --log-slave-updates Tells the slave to log the updates from the slave thread to the binary log. You will need to turn it on if you plan to daisy-chain the slaves. --log-slow-admin-statements Log slow OPTIMIZE, ANALYZE, ALTER and other administrative statements to the slow log if it is open. Resets or sets the option 'admin' in log_slow_disabled_statements --log-slow-disabled-statements=name Don't log certain types of statements to slow log. Any combination of: admin, call, slave, sp --log-slow-filter=name Log only certain types of queries to the slow log. If variable empty alll kind of queries are logged. All types are bound by slow_query_time, except 'not_using_index' which is always logged if enabled. Any combination of: admin, filesort, filesort_on_disk, filesort_priority_queue, full_join, full_scan, not_using_index, query_cache, query_cache_miss, tmp_table, tmp_table_on_disk --log-slow-rate-limit=# Write to slow log every #th slow query. Set to 1 to log everything. Increase it to reduce the size of the slow or the performance impact of slow logging --log-slow-slave-statements Log slow statements executed by slave thread to the slow log if it is open. Resets or sets the option 'slave' in log_slow_disabled_statements --log-slow-verbosity=name Verbosity level for the slow log. Any combination of: innodb, query_plan, explain --log-tc=name Path to transaction coordinator log (used for transactions that affect more than one storage engine, when binary log is disabled). --log-tc-size=# Size of transaction coordinator log. -W, --log-warnings[=#] Log some not critical warnings to the general log file.Value can be between 0 and 11. Higher values mean more verbosity --long-query-time=# Log all queries that have taken more than long_query_time seconds to execute to the slow query log file. The argument will be treated as a decimal value with microsecond precision --low-priority-updates INSERT/DELETE/UPDATE has lower priority than selects --lower-case-table-names[=#] If set to 1 table names are stored in lowercase on disk and table names will be case-insensitive. Should be set to 2 if you are using a case insensitive file system --master-info-file=name The location and name of the file that remembers the master and where the I/O replication thread is in the master's binlogs. Defaults to master.info --master-retry-count=# The number of tries the slave will make to connect to the master before giving up. --master-verify-checksum Force checksum verification of logged events in the binary log before sending them to slaves or printing them in the output of SHOW BINLOG EVENTS --max-allowed-packet=# Max packet length to send to or receive from the server --max-binlog-cache-size=# Sets the total size of the transactional cache --max-binlog-size=# Binary log will be rotated automatically when the size exceeds this value. --max-binlog-stmt-cache-size=# Sets the total size of the statement cache --max-connect-errors=# If there is more than this number of interrupted connections from a host this host will be blocked from further connections --max-connections=# The number of simultaneous clients allowed --max-delayed-threads=# Don't start more than this number of threads to handle INSERT DELAYED statements. If set to zero INSERT DELAYED will be not used --max-digest-length=# Maximum length considered for digest text. --max-error-count=# Max number of errors/warnings to store for a statement --max-heap-table-size=# Don't allow creation of heap tables bigger than this --max-join-size=# Joins that are probably going to read more than max_join_size records return an error --max-length-for-sort-data=# Max number of bytes in sorted records --max-long-data-size=# The maximum BLOB length to send to server from mysql_send_long_data API. Deprecated option; use max_allowed_packet instead. --max-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-seeks-for-key=# Limit assumed max number of seeks when looking up rows based on a key --max-session-mem-used=# Amount of memory a single user session is allowed to allocate. This limits the value of the session variable MEM_USED --max-sort-length=# The number of bytes to use when sorting BLOB or TEXT values (only the first max_sort_length bytes of each value are used; the rest are ignored) --max-sp-recursion-depth[=#] Maximum stored procedure recursion depth --max-statement-time=# A query that has taken more than max_statement_time seconds will be aborted. The argument will be treated as a decimal value with microsecond precision. A value of 0 (default) means no timeout --max-tmp-tables=# Unused, will be removed. --max-user-connections=# The maximum number of active connections for a single user (0 = no limit) --max-write-lock-count=# After this many write locks, allow some read locks to run in between --memlock Lock mysqld in memory. --metadata-locks-cache-size=# Unused --metadata-locks-hash-instances=# Unused --min-examined-row-limit=# Don't write queries to slow log that examine fewer rows than that --mrr-buffer-size=# Size of buffer to use when using MRR with range access --multi-range-count=# Ignored. Use mrr_buffer_size instead --myisam-block-size=# Block size to be used for MyISAM index pages --myisam-data-pointer-size=# Default pointer size to be used for MyISAM tables --myisam-max-sort-file-size=# Don't use the fast sort index method to created index if the temporary file would get bigger than this --myisam-mmap-size=# Restricts the total memory used for memory mapping of MySQL tables --myisam-recover-options[=name] Specifies how corrupted tables should be automatically repaired. Any combination of: DEFAULT, BACKUP, FORCE, QUICK, BACKUP_ALL, OFF --myisam-repair-threads=# If larger than 1, when repairing a MyISAM table all indexes will be created in parallel, with one thread per index. The value of 1 disables parallel repair --myisam-sort-buffer-size=# The buffer that is allocated when sorting the index when doing a REPAIR or when creating indexes with CREATE INDEX or ALTER TABLE --myisam-stats-method=name Specifies how MyISAM index statistics collection code should treat NULLs. Possible values of name are NULLS_UNEQUAL (default behavior for 4.1 and later), NULLS_EQUAL (emulate 4.0 behavior), and NULLS_IGNORED --myisam-use-mmap Use memory mapping for reading and writing MyISAM tables --mysql56-temporal-format Use MySQL-5.6 (instead of MariaDB-5.3) format for TIME, DATETIME, TIMESTAMP columns. (Defaults to on; use --skip-mysql56-temporal-format to disable.) --net-buffer-length=# Buffer length for TCP/IP and socket communication --net-read-timeout=# Number of seconds to wait for more data from a connection before aborting the read --net-retry-count=# If a read on a communication port is interrupted, retry this many times before giving up --net-write-timeout=# Number of seconds to wait for a block to be written to a connection before aborting the write --old Use compatible behavior from previous MariaDB version. See also --old-mode --old-alter-table[=name] Alias for alter_algorithm. Deprecated. Use --alter-algorithm instead.. One of: DEFAULT, COPY, INPLACE, NOCOPY, INSTANT --old-mode=name Used to emulate old behavior from earlier MariaDB or MySQL versions. Any combination of: NO_DUP_KEY_WARNINGS_WITH_IGNORE, NO_PROGRESS_INFO, ZERO_DATE_TIME_CAST --old-passwords Use old password encryption method (needed for 4.0 and older clients) --old-style-user-limits Enable old-style user limits (before 5.0.3, user resources were counted per each user+host vs. per account). --open-files-limit=# If this is not 0, then mysqld will use this value to reserve file descriptors to use with setrlimit(). If this value is 0 or autoset then mysqld will reserve max_connections*5 or max_connections + table_cache*2 (whichever is larger) number of file descriptors (Automatically configured unless set explicitly) --optimizer-prune-level=# Controls the heuristic(s) applied during query optimization to prune less-promising partial plans from the optimizer search space. Meaning: 0 - do not apply any heuristic, thus perform exhaustive search; 1 - prune plans based on number of retrieved rows --optimizer-search-depth=# Maximum depth of search performed by the query optimizer. Values larger than the number of relations in a query result in better query plans, but take longer to compile a query. Values smaller than the number of tables in a relation result in faster optimization, but may produce very bad query plans. If set to 0, the system will automatically pick a reasonable value. --optimizer-selectivity-sampling-limit=# Controls number of record samples to check condition selectivity --optimizer-switch=name Fine-tune the optimizer behavior. Takes a comma-separated list of option=value pairs, where value is on, off, or default, and options are: index_merge, index_merge_union, index_merge_sort_union, index_merge_intersection, index_merge_sort_intersection, engine_condition_pushdown, index_condition_pushdown, derived_merge, derived_with_keys, firstmatch, loosescan, materialization, in_to_exists, semijoin, partial_match_rowid_merge, partial_match_table_scan, subquery_cache, mrr, mrr_cost_based, mrr_sort_keys, outer_join_with_cache, semijoin_with_cache, join_cache_incremental, join_cache_hashed, join_cache_bka, optimize_join_buffer_size, table_elimination, extended_keys, exists_to_in, orderby_uses_equalities, condition_pushdown_for_derived, split_materialized --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 --performance-schema Enable the performance schema. --performance-schema-accounts-size=# Maximum number of instrumented user@host accounts. Use 0 to disable, -1 for automated sizing. --performance-schema-consumer-events-stages-current Default startup value for the events_stages_current consumer. --performance-schema-consumer-events-stages-history Default startup value for the events_stages_history consumer. --performance-schema-consumer-events-stages-history-long Default startup value for the events_stages_history_long consumer. --performance-schema-consumer-events-statements-current Default startup value for the events_statements_current consumer. (Defaults to on; use --skip-performance-schema-consumer-events-statements-current to disable.) --performance-schema-consumer-events-statements-history Default startup value for the events_statements_history consumer. --performance-schema-consumer-events-statements-history-long Default startup value for the events_statements_history_long consumer. --performance-schema-consumer-events-waits-current Default startup value for the events_waits_current consumer. --performance-schema-consumer-events-waits-history Default startup value for the events_waits_history consumer. --performance-schema-consumer-events-waits-history-long Default startup value for the events_waits_history_long consumer. --performance-schema-consumer-global-instrumentation Default startup value for the global_instrumentation consumer. (Defaults to on; use --skip-performance-schema-consumer-global-instrumentation to disable.) --performance-schema-consumer-statements-digest Default startup value for the statements_digest consumer. (Defaults to on; use --skip-performance-schema-consumer-statements-digest to disable.) --performance-schema-consumer-thread-instrumentation Default startup value for the thread_instrumentation consumer. (Defaults to on; use --skip-performance-schema-consumer-thread-instrumentation to disable.) --performance-schema-digests-size=# Size of the statement digest. Use 0 to disable, -1 for automated sizing. --performance-schema-events-stages-history-long-size=# Number of rows in EVENTS_STAGES_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. --performance-schema-events-stages-history-size=# Number of rows per thread in EVENTS_STAGES_HISTORY. Use 0 to disable, -1 for automated sizing. --performance-schema-events-statements-history-long-size=# Number of rows in EVENTS_STATEMENTS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. --performance-schema-events-statements-history-size=# Number of rows per thread in EVENTS_STATEMENTS_HISTORY. Use 0 to disable, -1 for automated sizing. --performance-schema-events-waits-history-long-size=# Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0 to disable, -1 for automated sizing. --performance-schema-events-waits-history-size=# Number of rows per thread in EVENTS_WAITS_HISTORY. Use 0 to disable, -1 for automated sizing. --performance-schema-hosts-size=# Maximum number of instrumented hosts. Use 0 to disable, -1 for automated sizing. --performance-schema-instrument[=name] Default startup value for a performance schema instrument. --performance-schema-max-cond-classes=# Maximum number of condition instruments. --performance-schema-max-cond-instances=# Maximum number of instrumented condition objects. Use 0 to disable, -1 for automated sizing. --performance-schema-max-digest-length=# Maximum length considered for digest text, when stored in performance_schema tables. --performance-schema-max-file-classes=# Maximum number of file instruments. --performance-schema-max-file-handles=# Maximum number of opened instrumented files. --performance-schema-max-file-instances=# Maximum number of instrumented files. Use 0 to disable, -1 for automated sizing. --performance-schema-max-mutex-classes=# Maximum number of mutex instruments. --performance-schema-max-mutex-instances=# Maximum number of instrumented MUTEX objects. Use 0 to disable, -1 for automated sizing. --performance-schema-max-rwlock-classes=# Maximum number of rwlock instruments. --performance-schema-max-rwlock-instances=# Maximum number of instrumented RWLOCK objects. Use 0 to disable, -1 for automated sizing. --performance-schema-max-socket-classes=# Maximum number of socket instruments. --performance-schema-max-socket-instances=# Maximum number of opened instrumented sockets. Use 0 to disable, -1 for automated sizing. --performance-schema-max-stage-classes=# Maximum number of stage instruments. --performance-schema-max-statement-classes=# Maximum number of statement instruments. --performance-schema-max-table-handles=# Maximum number of opened instrumented tables. Use 0 to disable, -1 for automated sizing. --performance-schema-max-table-instances=# Maximum number of instrumented tables. Use 0 to disable, -1 for automated sizing. --performance-schema-max-thread-classes=# Maximum number of thread instruments. --performance-schema-max-thread-instances=# Maximum number of instrumented threads. Use 0 to disable, -1 for automated sizing. --performance-schema-session-connect-attrs-size=# Size of session attribute string buffer per thread. Use 0 to disable, -1 for automated sizing. --performance-schema-setup-actors-size=# Maximum number of rows in SETUP_ACTORS. --performance-schema-setup-objects-size=# Maximum number of rows in SETUP_OBJECTS. --performance-schema-users-size=# Maximum number of instrumented users. Use 0 to disable, -1 for automated sizing. --pid-file=name Pid file used by safe_mysqld --plugin-dir=name Directory for plugins --plugin-load=name Semicolon-separated list of plugins to load, where each plugin is specified as ether a plugin_name=library_file pair or only a library_file. If the latter case, all plugins from a given library_file will be loaded. --plugin-load-add=name Optional semicolon-separated list of plugins to load. This option adds to the list specified by --plugin-load in an incremental way. It can be specified many times, adding more plugins every time. --plugin-maturity=name The lowest desirable plugin maturity. Plugins less mature than that will not be installed or loaded. One of: unknown, experimental, alpha, beta, gamma, stable -P, --port=# Port number to use for connection or 0 to default to, my.cnf, $MYSQL_TCP_PORT, /etc/services, built-in default (3306), whatever comes first --port-open-timeout=# Maximum time in seconds to wait for the port to become free. (Default: No wait). --preload-buffer-size=# The size of the buffer that is allocated when preloading indexes --profiling-history-size=# Number of statements about which profiling information is maintained. If set to 0, no profiles are stored. See SHOW PROFILES. --progress-report-time=# Seconds between sending progress reports to the client for time-consuming statements. Set to 0 to disable progress reporting. --proxy-protocol-networks=name Enable proxy protocol for these source networks. The syntax is a comma separated list of IPv4 and IPv6 networks. If the network doesn't contain mask, it is considered to be a single host. "*" represents all networks and must the only directive on the line. String "localhost" represents non-TCP local connections (Unix domain socket, Windows named pipe or shared memory). --query-alloc-block-size=# Allocation block size for query parsing and execution --query-cache-limit=# Don't cache results that are bigger than this --query-cache-min-res-unit=# The minimum size for blocks allocated by the query cache --query-cache-size=# The memory allocated to store results from old queries --query-cache-strip-comments Strip all comments from a query before storing it in the query cache --query-cache-type=name OFF = Don't cache or retrieve results. ON = Cache all results except SELECT SQL_NO_CACHE ... queries. DEMAND = Cache only SELECT SQL_CACHE ... queries --query-cache-wlock-invalidate Invalidate queries in query cache on LOCK for write --query-prealloc-size=# Persistent buffer for query parsing and execution --range-alloc-block-size=# Allocation block size for storing ranges during optimization --read-binlog-speed-limit=# Maximum speed(KB/s) to read binlog from master (0 = no limit) --read-buffer-size=# Each thread that does a sequential scan allocates a buffer of this size for each table it scans. If you do many sequential scans, you may want to increase this value --read-only Make all non-temporary tables read-only, with the exception for replication (slave) threads and users with the SUPER privilege --read-rnd-buffer-size=# When reading rows in sorted order after a sort, the rows are read through this buffer to avoid a disk seeks --relay-log=name The location and name to use for relay logs. --relay-log-index=name The location and name to use for the file that keeps a list of the last relay logs --relay-log-info-file=name The location and name of the file that remembers where the SQL replication thread is in the relay logs. --relay-log-purge if disabled - do not purge relay logs. if enabled - purge them as soon as they are no more needed. (Defaults to on; use --skip-relay-log-purge to disable.) --relay-log-recovery Enables automatic relay log recovery right after the database startup, which means that the IO Thread starts re-fetching from the master right after the last transaction processed. --relay-log-space-limit=# Maximum space to use for all relay logs --replicate-annotate-row-events Tells the slave to write annotate rows events received from the master to its own binary log. Ignored if log_slave_updates is not set (Defaults to on; use --skip-replicate-annotate-row-events to disable.) --replicate-do-db=name Tells the slave thread to restrict replication to the specified database. To specify more than one database, use the directive multiple times, once for each database. Note that this will only work if you do not use cross-database queries such as UPDATE some_db.some_table SET foo='bar' while having selected a different or no database. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-do-table=db_name.%. --replicate-do-table=name Tells the slave thread to restrict replication to the specified table. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates, in contrast to replicate-do-db. --replicate-events-marked-for-skip=name Whether the slave should replicate events that were created with @@skip_replication=1 on the master. Default REPLICATE (no events are skipped). Other values are FILTER_ON_SLAVE (events will be sent by the master but ignored by the slave) and FILTER_ON_MASTER (events marked with @@skip_replication=1 will be filtered on the master and never be sent to the slave). --replicate-ignore-db=name Tells the slave thread to not replicate to the specified database. To specify more than one database to ignore, use the directive multiple times, once for each database. This option will not work if you use cross database updates. If you need cross database updates to work, make sure you have 3.23.28 or later, and use replicate-wild-ignore-table=db_name.%. --replicate-ignore-table=name Tells the slave thread to not replicate to the specified table. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-database updates, in contrast to replicate-ignore-db. --replicate-rewrite-db=name Updates to a database with a different name than the original. Example: replicate-rewrite-db=master_db_name->slave_db_name. --replicate-same-server-id In replication, if set to 1, do not skip events having our server id. Default value is 0 (to break infinite loops in circular replication). Can't be set to 1 if --log-slave-updates is used. --replicate-wild-do-table=name Tells the slave thread to restrict replication to the tables that match the specified wildcard pattern. To specify more than one table, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-do-table=foo%.bar% will replicate only updates to tables in all databases that start with foo and whose table names start with bar. --replicate-wild-ignore-table=name Tells the slave thread to not replicate to the tables that match the given wildcard pattern. To specify more than one table to ignore, use the directive multiple times, once for each table. This will work for cross-database updates. Example: replicate-wild-ignore-table=foo%.bar% will not do updates to tables in databases that start with foo and whose table names start with bar. --report-host=name Hostname or IP of the slave to be reported to the master during slave registration. Will appear in the output of SHOW SLAVE HOSTS. Leave unset if you do not want the slave to register itself with the master. Note that it is not sufficient for the master to simply read the IP of the slave off the socket once the slave connects. Due to NAT and other routing issues, that IP may not be valid for connecting to the slave from the master or other hosts --report-password=name The account password of the slave to be reported to the master during slave registration --report-port=# Port for connecting to slave reported to the master during slave registration. Set it only if the slave is listening on a non-default port or if you have a special tunnel from the master or other clients to the slave. If not sure, leave this option unset --report-user=name The account user name of the slave to be reported to the master during slave registration --rowid-merge-buff-size=# The size of the buffers used [NOT] IN evaluation via partial matching --rpl-semi-sync-master-enabled Enable semi-synchronous replication master (disabled by default). --rpl-semi-sync-master-timeout=# The timeout value (in ms) for semi-synchronous replication in the master --rpl-semi-sync-master-trace-level=# The tracing level for semi-sync replication. --rpl-semi-sync-master-wait-no-slave Wait until timeout when no semi-synchronous replication slave available (enabled by default). (Defaults to on; use --skip-rpl-semi-sync-master-wait-no-slave to disable.) --rpl-semi-sync-master-wait-point=name Should transaction wait for semi-sync ack after having synced binlog, or after having committed in storage engine.. One of: AFTER_SYNC, AFTER_COMMIT --rpl-semi-sync-slave-delay-master Only write master info file when ack is needed. --rpl-semi-sync-slave-enabled Enable semi-synchronous replication slave (disabled by default). --rpl-semi-sync-slave-kill-conn-timeout[=#] Timeout for the mysql connection used to kill the slave io_thread's connection on master. This timeout comes into play when stop slave is executed. --rpl-semi-sync-slave-trace-level=# The tracing level for semi-sync replication. --safe-mode Skip some optimize stages (for testing). Deprecated. --safe-user-create Don't allow new user creation by the user who has no write privileges to the mysql.user table. --secure-auth Disallow authentication for accounts that have old (pre-4.1) passwords (Defaults to on; use --skip-secure-auth to disable.) --secure-file-priv=name Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to files within specified directory --secure-timestamp=name Restricts direct setting of a session timestamp. Possible levels are: YES - timestamp cannot deviate from the system clock, REPLICATION - replication thread can adjust timestamp to match the master's, SUPER - a user with this privilege and a replication thread can adjust timestamp, NO - historical behavior, anyone can modify session timestamp --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 withthe same characteristics (isolation level, read only/read write,snapshot - but not any work done / data modified within the transaction). --show-slave-auth-info Show user and password in SHOW SLAVE HOSTS on this master. --silent-startup Don't print [Note] to the error log during startup. --skip-bdb Deprecated option; Exist only for compatibility with old my.cnf files --skip-grant-tables Start without grant tables. This gives all users FULL ACCESS to all tables. --skip-host-cache Don't cache host names. --skip-name-resolve Don't resolve hostnames. All hostnames are IP's or 'localhost'. --skip-networking Don't allow connection with TCP/IP --skip-show-database Don't allow 'SHOW DATABASE' commands --skip-slave-start If set, slave is not autostarted. --slave-compressed-protocol Use compression on master/slave protocol --slave-ddl-exec-mode=name How replication events should be executed. Legal values are STRICT and IDEMPOTENT (default). In IDEMPOTENT mode, replication will not stop for DDL operations that are idempotent. This means that CREATE TABLE is treated as CREATE TABLE OR REPLACE and DROP TABLE is treated as DROP TABLE IF EXISTS. --slave-domain-parallel-threads=# Maximum number of parallel threads to use on slave for events in a single replication domain. When using multiple domains, this can be used to limit a single domain from grabbing all threads and thus stalling other domains. The default of 0 means to allow a domain to grab as many threads as it wants, up to the value of slave_parallel_threads. --slave-exec-mode=name How replication events should be executed. Legal values are STRICT (default) and IDEMPOTENT. In IDEMPOTENT mode, replication will not stop for operations that are idempotent. For example, in row based replication attempts to delete rows that doesn't exist will be ignored. In STRICT mode, replication will stop on any unexpected difference between the master and the slave. --slave-load-tmpdir=name The location where the slave should put its temporary files when replicating a LOAD DATA INFILE command --slave-max-allowed-packet=# The maximum packet length to sent successfully from the master to slave. --slave-net-timeout=# Number of seconds to wait for more data from any master/slave connection before aborting the read --slave-parallel-max-queued=# Limit on how much memory SQL threads should use per parallel replication thread when reading ahead in the relay log looking for opportunities for parallel replication. Only used when --slave-parallel-threads > 0. --slave-parallel-mode=name Controls what transactions are applied in parallel when using --slave-parallel-threads. Possible values: "optimistic" tries to apply most transactional DML in parallel, and handles any conflicts with rollback and retry. "conservative" limits parallelism in an effort to avoid any conflicts. "aggressive" tries to maximise the parallelism, possibly at the cost of increased conflict rate. "minimal" only parallelizes the commit steps of transactions. "none" disables parallel apply completely. --slave-parallel-threads=# If non-zero, number of threads to spawn to apply in parallel events on the slave that were group-committed on the master or were logged with GTID in different replication domains. Note that these threads are in addition to the IO and SQL threads, which are always created by a replication slave --slave-parallel-workers=# Alias for slave_parallel_threads --slave-run-triggers-for-rbr=name Modes for how triggers in row-base replication on slave side will be executed. Legal values are NO (default), YES and LOGGING. NO means that trigger for RBR will not be running on slave. YES and LOGGING means that triggers will be running on slave, if there was not triggers running on the master for the statement. LOGGING also means results of that the executed triggers work will be written to the binlog. --slave-skip-errors=name Tells the slave thread to continue replication when a query event returns an error from the provided list --slave-sql-verify-checksum Force checksum verification of replication events after reading them from relay log. Note: Events are always checksum-verified by slave on receiving them from the network before writing them to the relay log (Defaults to on; use --skip-slave-sql-verify-checksum to disable.) --slave-transaction-retries=# Number of times the slave SQL thread will retry a transaction in case it failed with a deadlock, elapsed lock wait timeout or listed in slave_transaction_retry_errors, before giving up and stopping --slave-transaction-retry-errors=name Tells the slave thread to retry transaction for replication when a query event returns an error from the provided list. Deadlock and elapsed lock wait timeout errors are automatically added to this list --slave-transaction-retry-interval=# Interval of the slave SQL thread will retry a transaction in case it failed with a deadlock or elapsed lock wait timeout or listed in slave_transaction_retry_errors --slave-type-conversions=name Set of slave type conversions that are enabled. If the variable is empty, no conversions are allowed and it is expected that the types match exactly. Any combination of: ALL_LOSSY, ALL_NON_LOSSY --slow-launch-time=# If creating the thread takes longer than this value (in seconds), the Slow_launch_threads counter will be incremented --slow-query-log Log slow queries to a table or log file. Defaults logging to a file 'hostname'-slow.log or a table mysql.slow_log if --log-output=TABLE is used. Must be enabled to activate other slow log options. --slow-query-log-file=name Log slow queries to given log file. Defaults logging to 'hostname'-slow.log. Must be enabled to activate other slow log options --socket=name Socket file to use for connection --sort-buffer-size=# Each thread that needs to do a sort allocates a buffer of this size --sql-mode=name Sets the sql mode. Any combination of: REAL_AS_FLOAT, PIPES_AS_CONCAT, ANSI_QUOTES, IGNORE_SPACE, IGNORE_BAD_TABLE_OPTIONS, ONLY_FULL_GROUP_BY, NO_UNSIGNED_SUBTRACTION, NO_DIR_IN_CREATE, POSTGRESQL, ORACLE, MSSQL, DB2, MAXDB, NO_KEY_OPTIONS, NO_TABLE_OPTIONS, NO_FIELD_OPTIONS, MYSQL323, MYSQL40, ANSI, NO_AUTO_VALUE_ON_ZERO, NO_BACKSLASH_ESCAPES, STRICT_TRANS_TABLES, STRICT_ALL_TABLES, NO_ZERO_IN_DATE, NO_ZERO_DATE, ALLOW_INVALID_DATES, ERROR_FOR_DIVISION_BY_ZERO, TRADITIONAL, NO_AUTO_CREATE_USER, HIGH_NOT_PRECEDENCE, NO_ENGINE_SUBSTITUTION, PAD_CHAR_TO_FULL_LENGTH, EMPTY_STRING_IS_NULL, SIMULTANEOUS_ASSIGNMENT --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. --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. --sync-binlog=# Synchronously flush binary log to disk after every #th event. Use 0 (default) to disable synchronous flushing --sync-frm Sync .frm files to disk on creation (Defaults to on; use --skip-sync-frm to disable.) --sync-master-info=# Synchronously flush master info to disk after every #th event. Use 0 to disable synchronous flushing --sync-relay-log=# Synchronously flush relay log to disk after every #th event. Use 0 to disable synchronous flushing --sync-relay-log-info=# Synchronously flush relay log info to disk after every #th transaction. Use 0 to disable synchronous flushing --sysdate-is-now Non-default option to alias SYSDATE() to NOW() to make it safe-replicable. Since 5.0, SYSDATE() returns a `dynamic' value different for different invocations, even within the same statement. --system-versioning-alter-history=name Versioning ALTER TABLE mode. ERROR: Fail ALTER with error; KEEP: Keep historical system rows and subject them to ALTER --table-cache=# Deprecated; use --table-open-cache instead. --table-definition-cache=# The number of cached table definitions --table-open-cache=# The number of cached open tables --table-open-cache-instances=# Maximum number of table cache instances --tc-heuristic-recover=name Decision to use in heuristic recover process. One of: OFF, COMMIT, ROLLBACK --tcp-keepalive-interval=# The interval, in seconds, between when successive keep-alive packets are sent if no acknowledgement is received.If set to 0, system dependent default is used. (Automatically configured unless set explicitly) --tcp-keepalive-probes=# The number of unacknowledged probes to send before considering the connection dead and notifying the application layer.If set to 0, system dependent default is used. (Automatically configured unless set explicitly) --tcp-keepalive-time=# Timeout, in milliseconds, with no activity until the first TCP keep-alive packet is sent.If set to 0, system dependent default is used. (Automatically configured unless set explicitly) --thread-cache-size=# How many threads we should keep in a cache for reuse. These are freed after 5 minutes of idle time --thread-pool-idle-timeout=# Timeout in seconds for an idle thread in the thread pool.Worker thread will be shut down after timeout --thread-pool-max-threads=# Maximum allowed number of worker threads in the thread pool --thread-pool-oversubscribe=# How many additional active worker threads in a group are allowed. --thread-pool-prio-kickup-timer=# The number of milliseconds before a dequeued low-priority statement is moved to the high-priority queue --thread-pool-priority=name Threadpool priority. High priority connections usually start executing earlier than low priority.If priority set to 'auto', the the actual priority(low or high) is determined based on whether or not connection is inside transaction. --thread-pool-size=# Number of thread groups in the pool. This parameter is roughly equivalent to maximum number of concurrently executing threads (threads in a waiting state do not count as executing). --thread-pool-stall-limit=# Maximum query execution time in milliseconds,before an executing non-yielding thread is considered stalled.If a worker thread is stalled, additional worker thread may be created to handle remaining clients. --thread-stack=# The stack size for each thread --time-format=name The TIME format (ignored) --timed-mutexes Specify whether to time mutexes. Deprecated, has no effect. --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. --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 -u, --user=name Run mysqld daemon as user. --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 Variables (--variable-name=value) allow-suspicious-udfs FALSE alter-algorithm DEFAULT auto-increment-increment 1 auto-increment-offset 1 autocommit TRUE automatic-sp-privileges TRUE back-log 80 big-tables FALSE bind-address (No default value) binlog-annotate-row-events TRUE binlog-cache-size 32768 binlog-checksum CRC32 binlog-commit-wait-count 0 binlog-commit-wait-usec 100000 binlog-direct-non-transactional-updates FALSE binlog-file-cache-size 16384 binlog-format MIXED binlog-optimize-thread-scheduling TRUE binlog-row-event-max-size 8192 binlog-row-image FULL binlog-stmt-cache-size 32768 bulk-insert-buffer-size 8388608 character-set-client-handshake TRUE character-set-filesystem binary character-sets-dir MYSQL_CHARSETSDIR/ chroot (No default value) 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 console TRUE date-format %Y-%m-%d datetime-format %Y-%m-%d %H:%i:%s deadlock-search-depth-long 15 deadlock-search-depth-short 4 deadlock-timeout-long 50000000 deadlock-timeout-short 10000 default-regex-flags default-storage-engine myisam 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 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 0 event-scheduler OFF expensive-subquery-limit 100 expire-logs-days 0 explicit-defaults-for-timestamp FALSE external-locking FALSE extra-max-connections 1 extra-port 0 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 getopt-prefix-matching FALSE group-concat-max-len 1048576 gtid-domain-id 0 gtid-ignore-duplicates FALSE gtid-pos-auto-engines gtid-strict-mode FALSE help TRUE histogram-size 0 histogram-type SINGLE_PREC_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 init-connect init-file (No default value) init-rpl-role MASTER init-slave 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-pages FALSE lc-messages en_US lc-messages-dir MYSQL_SHAREDIR/ lc-time-names en_US local-infile TRUE lock-wait-timeout 86400 log-bin (No default value) log-bin-compress FALSE log-bin-compress-min-len 256 log-bin-index (No default value) log-bin-trust-function-creators FALSE log-disabled-statements sp log-error log-isam myisam.log log-output FILE log-queries-not-using-indexes FALSE log-short-format FALSE log-slave-updates FALSE log-slow-admin-statements TRUE log-slow-disabled-statements sp log-slow-filter admin,filesort,filesort_on_disk,filesort_priority_queue,full_join,full_scan,query_cache,query_cache_miss,tmp_table,tmp_table_on_disk log-slow-rate-limit 1 log-slow-slave-statements TRUE log-slow-verbosity log-tc tc.log log-warnings 2 long-query-time 10 low-priority-updates FALSE lower-case-table-names 1 master-info-file master.info master-retry-count 86400 master-verify-checksum FALSE max-allowed-packet 16777216 max-binlog-cache-size 18446744073709547520 max-binlog-size 1073741824 max-binlog-stmt-cache-size 18446744073709547520 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-long-data-size 16777216 max-prepared-stmt-count 16382 max-recursive-iterations 18446744073709551615 max-relay-log-size 1073741824 max-seeks-for-key 18446744073709551615 max-session-mem-used 9223372036854775807 max-sort-length 1024 max-sp-recursion-depth 0 max-statement-time 0 max-tmp-tables 32 max-user-connections 0 max-write-lock-count 18446744073709551615 memlock FALSE metadata-locks-cache-size 1024 metadata-locks-hash-instances 8 min-examined-row-limit 0 mrr-buffer-size 262144 multi-range-count 256 myisam-block-size 1024 myisam-data-pointer-size 6 myisam-max-sort-file-size 9223372036853727232 myisam-mmap-size 18446744073709551615 myisam-recover-options BACKUP,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 old FALSE old-alter-table DEFAULT old-mode old-passwords FALSE old-style-user-limits FALSE optimizer-prune-level 1 optimizer-search-depth 62 optimizer-selectivity-sampling-limit 100 optimizer-switch index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on optimizer-use-condition-selectivity 1 performance-schema FALSE performance-schema-accounts-size -1 performance-schema-consumer-events-stages-current FALSE performance-schema-consumer-events-stages-history FALSE performance-schema-consumer-events-stages-history-long FALSE performance-schema-consumer-events-statements-current TRUE performance-schema-consumer-events-statements-history FALSE performance-schema-consumer-events-statements-history-long FALSE performance-schema-consumer-events-waits-current FALSE performance-schema-consumer-events-waits-history FALSE performance-schema-consumer-events-waits-history-long FALSE performance-schema-consumer-global-instrumentation TRUE performance-schema-consumer-statements-digest TRUE performance-schema-consumer-thread-instrumentation TRUE performance-schema-digests-size -1 performance-schema-events-stages-history-long-size -1 performance-schema-events-stages-history-size -1 performance-schema-events-statements-history-long-size -1 performance-schema-events-statements-history-size -1 performance-schema-events-waits-history-long-size -1 performance-schema-events-waits-history-size -1 performance-schema-hosts-size -1 performance-schema-instrument performance-schema-max-cond-classes 80 performance-schema-max-cond-instances -1 performance-schema-max-digest-length 1024 performance-schema-max-file-classes 50 performance-schema-max-file-handles 32768 performance-schema-max-file-instances -1 performance-schema-max-mutex-classes 200 performance-schema-max-mutex-instances -1 performance-schema-max-rwlock-classes 40 performance-schema-max-rwlock-instances -1 performance-schema-max-socket-classes 10 performance-schema-max-socket-instances -1 performance-schema-max-stage-classes 160 performance-schema-max-statement-classes 200 performance-schema-max-table-handles -1 performance-schema-max-table-instances -1 performance-schema-max-thread-classes 50 performance-schema-max-thread-instances -1 performance-schema-session-connect-attrs-size -1 performance-schema-setup-actors-size 100 performance-schema-setup-objects-size 100 performance-schema-users-size -1 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 relay-log (No default value) relay-log-index (No default value) relay-log-info-file relay-log.info relay-log-purge TRUE relay-log-recovery FALSE relay-log-space-limit 0 replicate-annotate-row-events TRUE replicate-events-marked-for-skip REPLICATE replicate-same-server-id FALSE report-host (No default value) report-password (No default value) report-port 0 report-user (No default value) rowid-merge-buff-size 8388608 rpl-semi-sync-master-enabled FALSE rpl-semi-sync-master-timeout 10000 rpl-semi-sync-master-trace-level 32 rpl-semi-sync-master-wait-no-slave TRUE rpl-semi-sync-master-wait-point AFTER_COMMIT rpl-semi-sync-slave-delay-master FALSE rpl-semi-sync-slave-enabled FALSE rpl-semi-sync-slave-kill-conn-timeout 5 rpl-semi-sync-slave-trace-level 32 safe-user-create FALSE secure-auth TRUE secure-file-priv (No default value) secure-timestamp NO server-id 1 session-track-schema TRUE session-track-state-change FALSE session-track-system-variables autocommit,character_set_client,character_set_connection,character_set_results,time_zone session-track-transaction-info OFF show-slave-auth-info FALSE silent-startup FALSE skip-grant-tables TRUE skip-name-resolve FALSE skip-networking FALSE skip-show-database FALSE skip-slave-start FALSE slave-compressed-protocol FALSE slave-ddl-exec-mode IDEMPOTENT slave-domain-parallel-threads 0 slave-exec-mode STRICT slave-max-allowed-packet 1073741824 slave-net-timeout 60 slave-parallel-max-queued 131072 slave-parallel-mode conservative slave-parallel-threads 0 slave-parallel-workers 0 slave-run-triggers-for-rbr NO slave-skip-errors OFF slave-sql-verify-checksum TRUE slave-transaction-retries 10 slave-transaction-retry-errors 1213,1205 slave-transaction-retry-interval 0 slave-type-conversions slow-launch-time 2 slow-query-log FALSE 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 stack-trace TRUE standard-compliant-cte TRUE stored-program-cache 256 strict-password-validation TRUE symbolic-links FALSE sync-binlog 0 sync-frm FALSE sync-master-info 10000 sync-relay-log 10000 sync-relay-log-info 10000 sysdate-is-now FALSE system-versioning-alter-history ERROR table-cache 421 table-definition-cache 400 table-open-cache 421 table-open-cache-instances 8 tc-heuristic-recover OFF tcp-keepalive-interval 0 tcp-keepalive-probes 0 tcp-keepalive-time 0 thread-cache-size 151 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-stall-limit 500 thread-stack 299008 time-format %H:%i:%s timed-mutexes FALSE tmp-disk-table-size 18446744073709551615 tmp-memory-table-size 16777216 tmp-table-size 16777216 transaction-alloc-block-size 8192 transaction-isolation REPEATABLE-READ transaction-prealloc-size 4096 transaction-read-only FALSE updatable-views-with-limit YES use-stat-tables NEVER userstat FALSE verbose TRUE wait-timeout 28800 To see what values a running MySQL server is using, type 'mysqladmin variables' instead of 'mysqld --verbose --help'.