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MYSQL Configuration

Discussion in 'Workarounds and Optimization' started by darknez, Oct 25, 2013.

  1. darknez

    darknez Member

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    Hi
    I am trying to edit my.cnf file. But i am getting only following executed message

    Code:
    [mysqld]
    innodb_file_per_table=1
    
    but when i m using mysqld --verbose --help then i m getting following output.


    Code:
    131025 18:50:25 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!
    
    mysqld  Ver 5.5.32-cll for Linux on x86_64 (MySQL Community Server (GPL))
    Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
    
    Oracle is a registered trademark of Oracle Corporation and/or its
    affiliates. Other names may be trademarks of their respective
    owners.
    
    Starts the MySQL database server.
    
    Usage: mysqld [OPTIONS]
    
    Default options are read from the following files in the given order:
    /etc/my.cnf /etc/mysql/my.cnf /usr/etc/my.cnf ~/.my.cnf
    The following groups are read: mysqld server mysqld-5.5
    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.
    --defaults-file=#       Only read default options from the given file #.
    --defaults-extra-file=# Read this file after the global files are read.
    
      --abort-slave-event-count=#
                          Option used by mysql-test for debugging and testing of
                          replication.
      --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
      -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 MySQL can
                          have. This comes into play when the main MySQL thread
                          gets very many connection requests in a very short time
      -b, --basedir=name  Path to installation directory. All paths are usually
                          resolved relative to this
      --big-tables        Allow big result sets by saving all temporary sets on
                          file (Solves most 'table full' errors)
      --bind-address=name IP address to bind to.
      --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-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-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. If NDBCLUSTER is enabled and
                          binlog-format is MIXED, the format switches to row-based
                          and back implicitly per each query accessing an
                          NDBCLUSTER table
      --binlog-ignore-db=name
                          Tells the master that updates to the given database
                          should not be logged to the binary log.
      --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-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.
      --completion-type=name
                          The transaction completion type, one of NO_CHAIN, CHAIN,
                          RELEASE
      --concurrent-insert[=name]
                          Use concurrent insert with MyISAM. Possible values are
                          NEVER, AUTO, ALWAYS
      --connect-timeout=# The number of seconds the mysqld server is waiting for a
                          connect packet before responding with 'Bad handshake'
      --console           Write error output on screen; don't remove the console
                          window on windows.
      --core-file         Write core on errors.
      -h, --datadir=name  Path to the database root directory
      --date-format=name  The DATE format (ignored)
      --datetime-format=name
                          The DATETIME format (ignored)
      --default-storage-engine=name
                          The default storage engine for new tables
      --default-time-zone=name
                          Set the default time zone.
      --default-week-format=#
                          The default week format used by WEEK() functions
      --delay-key-write[=name]
                          Type of DELAY_KEY_WRITE
      --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-slave-event-count=#
                          Option used by mysql-test for debugging and testing of
                          replication.
      --div-precision-increment=#
                          Precision of the result of '/' operator will be increased
                          on that value
      --engine-condition-pushdown
                          Push supported query conditions to the storage engine.
                          Deprecated, use --optimizer-switch instead.
                          (Defaults to on; use --skip-engine-condition-pushdown to disable.)
      --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)
      -T, --exit-info[=#] Used for debugging. Use at your own risk.
      --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
      --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.
      --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.
      --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
      --group-concat-max-len=#
                          The maximum length of the result of function
                          GROUP_CONCAT()
      -?, --help          Display this help and exit.
      --ignore-builtin-innodb
                          DEPRECATED. This option will be removed in future
                          releases. Disable initialization of builtin InnoDB plugin
      --init-connect=name Command(s) that are executed for each new connection
      --init-file=name    Read SQL commands from this file at startup
      --init-rpl-role=name
                          Set the replication role.
      --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 full joins
      --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
      -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.
      -l, --log[=name]    Log connections and queries to file (deprecated option,
                          use --general-log/--general-log-file instead).
      --log-bin[=name]    Log update queries in binary format. Optional (but
                          strongly recommended to avoid replication problems if
                          server's hostname changes) argument should be the chosen
                          location for the binary log files.
      --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-error[=name]  Error log file
      --log-isam[=name]   Log all MyISAM changes to file.
      --log-output=name   Syntax: log-output=value[,value...], where "value" could
                          be TABLE, FILE or NONE
      --log-queries-not-using-indexes
                          Log queries that are executed without benefit of any
                          index to the slow log if it is open
      --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.
      --log-slow-queries[=name]
                          Log slow queries to a table or log file. Defaults logging
                          to table mysql.slow_log or hostname-slow.log if
                          --log-output=file is used. Must be enabled to activate
                          other slow log options. Deprecated option, use
                          --slow-query-log/--slow-query-log-file instead.
      --log-slow-slave-statements
                          Log slow statements executed by slave thread to the slow
                          log if it is open.
      --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 log file
      --long-query-time=# Log all queries that have taken more than long_query_time
                          seconds to execute to 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.
      --master-retry-count=#
                          The number of tries the slave will make to connect to the
                          master before giving up.
      --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-dump-events=#
                          Option used by mysql-test for debugging and testing of
                          replication.
      --max-binlog-size=# Binary log will be rotated automatically when the size
                          exceeds this value. Will also apply to relay logs if
                          max_relay_log_size is 0
      --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-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-relay-log-size=#
                          If non-zero: relay log will be rotated automatically when
                          the size exceeds this value; if zero: when the size
                          exceeds max_binlog_size
      --max-seeks-for-key=#
                          Limit assumed max number of seeks when looking up rows
                          based on a key
      --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-tmp-tables=#  Maximum number of temporary tables a client can keep open
                          at a time
      --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=#
                          Size of unused metadata locks cache
      --min-examined-row-limit=#
                          Don't write queries to slow log that examine fewer rows
                          than that
      --multi-range-count=#
                          Number of key ranges to request at once
      --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
      -n, --new           Use very new possible "unsafe" functions
      --old               Use compatible behavior
      --old-alter-table   Use old, non-optimized alter table
      --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).
      --one-thread        (Deprecated): Only use one thread (for debugging under
                          Linux). Use thread-handling=no-threads instead.
      --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 then mysqld will reserve max_connections*5 or
                          max_connections + table_cache*2 (whichever is larger)
                          number of file descriptors
      --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; if set to 63, the
                          optimizer will switch to the original find_best search.
                          NOTE: The value 63 and its associated behaviour is
                          deprecated
      --optimizer-switch=name
                          optimizer_switch=option=val[,option=val...], where option
                          is one of {index_merge, index_merge_union,
                          index_merge_sort_union, index_merge_intersection,
                          engine_condition_pushdown} and val is one of {on, off,
                          default}
      --performance-schema
                          Enable the performance schema.
      --performance-schema-events-waits-history-long-size=#
                          Number of rows in EVENTS_WAITS_HISTORY_LONG.
      --performance-schema-events-waits-history-size=#
                          Number of rows per thread in EVENTS_WAITS_HISTORY.
      --performance-schema-max-cond-classes=#
                          Maximum number of condition instruments.
      --performance-schema-max-cond-instances=#
                          Maximum number of instrumented condition objects.
      --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.
      --performance-schema-max-mutex-classes=#
                          Maximum number of mutex instruments.
      --performance-schema-max-mutex-instances=#
                          Maximum number of instrumented MUTEX objects.
      --performance-schema-max-rwlock-classes=#
                          Maximum number of rwlock instruments.
      --performance-schema-max-rwlock-instances=#
                          Maximum number of instrumented RWLOCK objects.
      --performance-schema-max-table-handles=#
                          Maximum number of opened instrumented tables.
      --performance-schema-max-table-instances=#
                          Maximum number of instrumented tables.
      --performance-schema-max-thread-classes=#
                          Maximum number of thread instruments.
      --performance-schema-max-thread-instances=#
                          Maximum number of instrumented threads.
      --pid-file=name     Pid file used by safe_mysqld
      --plugin-dir=name   Directory for plugins
      --plugin-load=name  Optional semicolon-separated list of plugins to load,
                          where each plugin is identified as name=library, where
                          name is the plugin name and library is the plugin library
                          in plugin_dir.
      -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=#
                          Limit of query profiling 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-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-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-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-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
      --rpl-recovery-rank=#
                          Unused, will be removed
      --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
      --secure-file-priv=name
                          Limit LOAD DATA, SELECT ... OUTFILE, and LOAD_FILE() to
                          files within specified directory
      --server-id=#       Uniquely identifies the server instance in the community
                          of replication partners
      --show-slave-auth-info
                          Show user and password in SHOW SLAVE HOSTS on this
                          master.
      --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-new          Don't use new, possibly wrong routines.
      --skip-show-database
                          Don't allow 'SHOW DATABASE' commands
      --skip-slave-start  If set, slave is not autostarted.
      --skip-stack-trace  Don't print a stack trace on failure.
      --skip-thread-priority
                          Don't give threads different priorities. This option is
                          deprecated because it has no effect; the implied behavior
                          is already the default.
      --slave-compressed-protocol
                          Use compression on master/slave protocol
      --slave-exec-mode=name
                          Modes for 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. 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 a
                          master/slave connection before aborting the read
      --slave-skip-errors=name
                          Tells the slave thread to continue replication when a
                          query event returns an error from the provided list
      --slave-transaction-retries=#
                          Number of times the slave SQL thread will retry a
                          transaction in case it failed with a deadlock or elapsed
                          lock wait timeout, before giving up and stopping
      --slave-type-conversions=name
                          Set of slave type conversions that are enabled. Legal
                          values are: ALL_LOSSY to enable lossy conversions and
                          ALL_NON_LOSSY to enable non-lossy conversions. If the
                          variable is assigned the empty set, no conversions are
                          allowed and it is expected that the types match exactly.
      --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
      --sporadic-binlog-dump-fail
                          Option used by mysql-test for debugging and testing of
                          replication.
      --sql-mode=name     Syntax: sql-mode=mode[,mode[,mode...]]. See the manual
                          for the complete list of valid sql modes
      --ssl               Enable SSL for connection (automatically enabled with
                          other flags).
      --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-key=name      X509 key in PEM format (implies --ssl)
      --stored-program-cache=#
                          The soft upper limit for number of cached stored routines
                          for one connection.
      --super-large-pages Enable support for super large pages.
      -s, --symbolic-links
                          Enable symbolic link support.
                          (Defaults to on; use --skip-symbolic-links to disable.)
      --sync-binlog=#     Synchronously flush binary log to disk after every #th
                          event. Use 0 (default) to disable synchronous flushing
      --sync-frm          Sync .frm files to disk on creation
                          (Defaults to on; use --skip-sync-frm to disable.)
      --sync-master-info=#
                          Synchronously flush master info to disk after every #th
                          event. Use 0 (default) to disable synchronous flushing
      --sync-relay-log=#  Synchronously flush relay log to disk after every #th
                          event. Use 0 (default) to disable synchronous flushing
      --sync-relay-log-info=#
                          Synchronously flush relay log info to disk after every
                          #th transaction. Use 0 (default) 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.
      --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
      --tc-heuristic-recover=name
                          Decision to use in heuristic recover process. Possible
                          values are COMMIT or ROLLBACK.
      --temp-pool         Using this option will cause most temporary files created
                          to use a small set of names, rather than a unique name
                          for each new file.
                          (Defaults to on; use --skip-temp-pool to disable.)
      --thread-cache-size=#
                          How many threads we should keep in a cache for reuse
      --thread-concurrency=#
                          Permits the application to give the threads system a hint
                          for the desired number of threads that should be run at
                          the same time
      --thread-handling=name
                          Define threads usage for handling queries, one of
                          one-thread-per-connection, no-threads, loaded-dynamically
      --thread-stack=#    The stack size for each thread
      --thread-statistics Control TABLE_STATISTICS running, when userstat is
                          enabled
      --time-format=name  The TIME format (ignored)
      --timed-mutexes     Specify whether to time mutexes (only InnoDB mutexes are
                          currently supported)
      --tmp-table-size=#  If an internal in-memory temporary table exceeds this
                          size, MySQL will automatically convert it to an on-disk
                          MyISAM 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.
      --transaction-prealloc-size=#
                          Persistent buffer for transactions to be stored in binary
                          log
      --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)
      -u, --user=name     Run mysqld daemon as user.
      --userstat          Control USER_STATISTICS, CLIENT_STATISTICS,
                          THREAD_STATISTICS, INDEX_STATISTICS and TABLE_STATISTICS
                          running
      -v, --verbose       Used with --help option for detailed help.
      -V, --version       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)
    and boolean options {FALSE|TRUE}                  Value (after reading options)
    ------------------------------------------------- ------------------------
    abort-slave-event-count                           0
    allow-suspicious-udfs                             FALSE
    auto-increment-increment                          1
    auto-increment-offset                             1
    autocommit                                        TRUE
    automatic-sp-privileges                           TRUE
    back-log                                          50
    basedir                                           /usr/
    big-tables                                        FALSE
    bind-address                                      (No default value)
    binlog-cache-size                                 32768
    binlog-direct-non-transactional-updates           FALSE
    binlog-format                                     STATEMENT
    binlog-row-event-max-size                         1024
    binlog-stmt-cache-size                            32768
    bulk-insert-buffer-size                           8388608
    character-set-client-handshake                    TRUE
    character-set-filesystem                          binary
    character-set-server                              latin1
    character-sets-dir                                /usr/share/mysql/charsets/
    chroot                                            (No default value)
    collation-server                                  latin1_swedish_ci
    completion-type                                   NO_CHAIN
    concurrent-insert                                 AUTO
    connect-timeout                                   10
    console                                           FALSE
    datadir                                           /var/lib/mysql/
    date-format                                       %Y-%m-%d
    datetime-format                                   %Y-%m-%d %H:%i:%s
    default-storage-engine                            InnoDB
    default-time-zone                                 (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-slave-event-count                      0
    div-precision-increment                           4
    engine-condition-pushdown                         TRUE
    event-scheduler                                   OFF
    expire-logs-days                                  0
    external-locking                                  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                                  /var/lib/mysql/server1.log
    group-concat-max-len                              1024
    help                                              TRUE
    ignore-builtin-innodb                             FALSE
    init-connect
    init-file                                         (No default value)
    init-rpl-role                                     MASTER
    init-slave
    interactive-timeout                               28800
    join-buffer-size                                  131072
    keep-files-on-create                              FALSE
    key-buffer-size                                   8388608
    key-cache-age-threshold                           300
    key-cache-block-size                              1024
    key-cache-division-limit                          100
    language                                          /usr/share/mysql/
    large-pages                                       FALSE
    lc-messages                                       en_US
    lc-messages-dir                                   /usr/share/mysql/
    lc-time-names                                     en_US
    local-infile                                      TRUE
    lock-wait-timeout                                 31536000
    log                                               /var/lib/mysql/server1.log
    log-bin                                           (No default value)
    log-bin-index                                     (No default value)
    log-bin-trust-function-creators                   FALSE
    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                         FALSE
    log-slow-queries                                  /var/lib/mysql/server1-slow.log
    log-slow-slave-statements                         FALSE
    log-tc                                            tc.log
    log-tc-size                                       24576
    log-warnings                                      1
    long-query-time                                   10
    low-priority-updates                              FALSE
    lower-case-table-names                            0
    master-info-file                                  master.info
    master-retry-count                                86400
    max-allowed-packet                                1048576
    max-binlog-cache-size                             18446744073709547520
    max-binlog-dump-events                            0
    max-binlog-size                                   1073741824
    max-binlog-stmt-cache-size                        18446744073709547520
    max-connect-errors                                10
    max-connections                                   151
    max-delayed-threads                               20
    max-error-count                                   64
    max-heap-table-size                               16777216
    max-join-size                                     18446744073709551615
    max-length-for-sort-data                          1024
    max-long-data-size                                1048576
    max-prepared-stmt-count                           16382
    max-relay-log-size                                0
    max-seeks-for-key                                 18446744073709551615
    max-sort-length                                   1024
    max-sp-recursion-depth                            0
    max-tmp-tables                                    32
    max-user-connections                              0
    max-write-lock-count                              18446744073709551615
    memlock                                           FALSE
    metadata-locks-cache-size                         1024
    min-examined-row-limit                            0
    multi-range-count                                 256
    net-buffer-length                                 16384
    net-read-timeout                                  30
    net-retry-count                                   10
    net-write-timeout                                 60
    new                                               FALSE
    old                                               FALSE
    old-alter-table                                   FALSE
    old-passwords                                     FALSE
    old-style-user-limits                             FALSE
    open-files-limit                                  1024
    optimizer-prune-level                             1
    optimizer-search-depth                            62
    optimizer-switch                                  index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on
    performance-schema                                FALSE
    performance-schema-events-waits-history-long-size 10000
    performance-schema-events-waits-history-size      10
    performance-schema-max-cond-classes               80
    performance-schema-max-cond-instances             1000
    performance-schema-max-file-classes               50
    performance-schema-max-file-handles               32768
    performance-schema-max-file-instances             10000
    performance-schema-max-mutex-classes              200
    performance-schema-max-mutex-instances            1000000
    performance-schema-max-rwlock-classes             30
    performance-schema-max-rwlock-instances           1000000
    performance-schema-max-table-handles              100000
    performance-schema-max-table-instances            50000
    performance-schema-max-thread-classes             50
    performance-schema-max-thread-instances           1000
    pid-file                                          /var/lib/mysql/server1.pid
    plugin-dir                                        /usr/lib64/mysql/plugin/
    plugin-load                                       (No default value)
    port                                              3306
    port-open-timeout                                 0
    preload-buffer-size                               32768
    profiling-history-size                            15
    query-alloc-block-size                            8192
    query-cache-limit                                 1048576
    query-cache-min-res-unit                          4096
    query-cache-size                                  0
    query-cache-type                                  ON
    query-cache-wlock-invalidate                      FALSE
    query-prealloc-size                               8192
    range-alloc-block-size                            4096
    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-same-server-id                          FALSE
    report-host                                       (No default value)
    report-password                                   (No default value)
    report-port                                       0
    report-user                                       (No default value)
    rpl-recovery-rank                                 0
    safe-user-create                                  FALSE
    secure-auth                                       FALSE
    secure-file-priv                                  (No default value)
    server-id                                         0
    show-slave-auth-info                              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-exec-mode                                   STRICT
    slave-load-tmpdir                                 /tmp
    slave-max-allowed-packet                          1073741824
    slave-net-timeout                                 3600
    slave-skip-errors                                 (No default value)
    slave-transaction-retries                         10
    slave-type-conversions
    slow-launch-time                                  2
    slow-query-log                                    FALSE
    slow-query-log-file                               /var/lib/mysql/server1-slow.log
    socket                                            /var/lib/mysql/mysql.sock
    sort-buffer-size                                  2097152
    sporadic-binlog-dump-fail                         FALSE
    sql-mode
    ssl                                               FALSE
    ssl-ca                                            (No default value)
    ssl-capath                                        (No default value)
    ssl-cert                                          (No default value)
    ssl-cipher                                        (No default value)
    ssl-key                                           (No default value)
    stored-program-cache                              256
    super-large-pages                                 FALSE
    symbolic-links                                    TRUE
    sync-binlog                                       0
    sync-frm                                          TRUE
    sync-master-info                                  0
    sync-relay-log                                    0
    sync-relay-log-info                               0
    sysdate-is-now                                    FALSE
    table-cache                                       400
    table-definition-cache                            400
    table-open-cache                                  400
    tc-heuristic-recover                              COMMIT
    temp-pool                                         TRUE
    thread-cache-size                                 0
    thread-concurrency                                10
    thread-handling                                   one-thread-per-connection
    thread-stack                                      262144
    thread-statistics                                 FALSE
    time-format                                       %H:%i:%s
    timed-mutexes                                     FALSE
    tmp-table-size                                    16777216
    tmpdir                                            /tmp
    transaction-alloc-block-size                      8192
    transaction-isolation                             REPEATABLE-READ
    transaction-prealloc-size                         4096
    updatable-views-with-limit                        YES
    userstat                                          FALSE
    verbose                                           TRUE
    wait-timeout                                      28800
    

    Can you please helpout me where i can get mysql configuration file with all these entries. I want to change following entries in mysql configuration

    Code:
    bulk-insert-buffer-size  	500 MB
    Connection Timed Out	999999
    Autocomit	off
    Unique Check	OFF
    Foreign Key Check	OFF
    innodb_autoinc_lock_mode	2
    Back Log	500
    binlog cache size	10 MB
    delayed insert limit	1000
    delayed insert timeout	9999
    innodb additional mem pool size	99Mb
    innodb buffer pool size	9999
    innodb log buffer size	99
    innodb log file size	99
     
  2. cPanelMichael

    cPanelMichael Forums Analyst
    Staff Member

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    Hello :)

    MySQL configuration changes are made in the following file:

    /etc/my.cnf

    The following thread is useful if you are seeking help on which specific edits to make:

    MySQL Server Stats Gathering Tool

    Thank you.
     
  3. darknez

    darknez Member

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    Thanks for the quick reply but the problem is in mysql.cnf file i am getting only one Line

    Code:
    [mysqld]
    innodb_file_per_table=1
    This is what i am getting in mysql.cnf file. so what shall i do to get all the variables in file.
     
  4. Infopro

    Infopro cPanel Sr. Product Evangelist
    Staff Member

    Joined:
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    Twitter:
    That's a default file added. You can start by reading up on using Option files here:

    4.2.3.3. Using Option Files - mysql.com Documentation

    In that first paragraph you'll see this comment:
    If you click thru it you come to this page:

    5.1.2. Server Configuration Defaults - mysql.com Documentation

    That page explains the default files already on your system available to be used. You'd read up on those, select the best one depending on your system (my-small.cnf, my-medium.cnf, my-large.cnf, or my-huge.cnf), and copy it, rename it to my.cnf, and replace the one you have in use now.

    Now that you've got all the variables you're looking for, you'll need to leave the system run, using it for at least 24 hours. Next, gather the stats and go from there.


    You really shouldn't be changing anything with this until you've read up on it and understand a bit more about what you're doing.

    GL!
     
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