mysql 5.6.10能用的參數（驗證） my.ini文件 總起來有兩處必須變動 取消table_cache及log-slow-queries=slow.log必須變更為slow-query-log-file=slow.log [mysqld] port = 3306 可用 basedir=D:/wamp/mysql 可用 datadir=D:/wamp/mysql/data/ 可用 tmpdir=D:/wamp/tmp/ 可用 character-set-server=utf8 改為character-set-server 好像沒什麼影響 table_cache=2048 取消了該處 ，如果加上就會無法啟動 wait_timeout=30 可用 interactive_timeout=30可用 skip-name-resolve可用 bind-address=0.0.0.0可用 innodb_file_per_table=1可用 innodb_open_files=2048可用 back_log = 500可用 max_connections = 1000可用 max_connect_errors = 100可用 table_open_cache = 2048可用 max_allowed_packet = 32M可用 binlog_cache_size = 1M可用 max_heap_table_size = 256M可用 read_buffer_size = 16M可用 read_rnd_buffer_size = 16M可用 sort_buffer_size = 16M可用 join_buffer_size = 32M可用 thread_cache_size = 64可用 thread_concurrency =4可用 query_cache_size = 256M可用 query_cache_limit = 8M可用 ft_min_word_len = 4可用 #memlock default-storage-engine = Innodb可用 thread_stack = 192K可用 transaction_isolation = REPEATABLE-READ可用 tmp_table_size = 256M可用 max_tmp_tables=512可用 # Enable binary logging. This is required for acting as a MASTER in a # replication configuration. You also need the binary log if you need # the ability to do point in time recovery from your latest backup. #log-bin=mysql-bin # binary logging format - mixed recommended #binlog_format=mixed # If you're using replication with chained slaves (A->B->C), you need to # enable this option on server B. It enables logging of updates done by # the slave thread into the slave's binary log. #log_slave_updates # Enable the full query log. Every query (even ones with incorrect # syntax) that the server receives will be logged. This is useful for # debugging, it is usually disabled in production use. #log # Print warnings to the error log file. If you have any problem with # MySQL you should enable logging of warnings and examine the error log # for possible explanations. #log_warnings # Log slow queries. Slow queries are queries which take more than the # amount of time defined in "long_query_time" or which do not use # indexes well, if log_short_format is not enabled. It is normally good idea # to have this turned on if you frequently add new queries to the # system. slow-query-log=1可用 # All queries taking more than this amount of time (in seconds) will be # trated as slow. Do not use "1" as a value here, as this will result in # even very fast queries being logged from time to time (as MySQL # currently measures time with second accuracy only). long_query_time = 5可用 slow-query-log-file=slow.log 更改 #log-queries-not-using-indexes # *** Replication related settings # Unique server identification number between 1 and 2^32-1. This value # is required for both master and slave hosts. It defaults to 1 if # "master-host" is not set, but will MySQL will not function as a master # if it is omitted. server-id = 1可用 # Replication Slave (comment out master section to use this) # # To configure this host as a replication slave, you can choose between # two methods : # # 1) Use the CHANGE MASTER TO command (fully described in our manual) - # the syntax is: # # CHANGE MASTER TO MASTER_HOST=<host>, MASTER_PORT=<port>, # MASTER_USER=<user>, MASTER_PASSWORD=<password> ; # # where you replace <host>, <user>, <password> by quoted strings and # <port> by the master's port number (3306 by default). # # Example: # # CHANGE MASTER TO MASTER_HOST='125.564.12.1', MASTER_PORT=3306, # MASTER_USER='joe', MASTER_PASSWORD='secret'; # # OR # # 2) Set the variables below. However, in case you choose this method, then # start replication for the first time (even unsuccessfully, for example # if you mistyped the password in master-password and the slave fails to # connect), the slave will create a master.info file, and any later # changes in this file to the variable values below will be ignored and # overridden by the content of the master.info file, unless you shutdown # the slave server, delete master.info and restart the slaver server. # For that reason, you may want to leave the lines below untouched # (commented) and instead use CHANGE MASTER TO (see above) # # required unique id between 2 and 2^32 - 1 # (and different from the master) # defaults to 2 if master-host is set # but will not function as a slave if omitted #server-id = 2 # # The replication master for this slave - required #master-host = <hostname> # # The username the slave will use for authentication when connecting # to the master - required #master-user = <username> # # The password the slave will authenticate with when connecting to # the master - required #master-password = <password> # # The port the master is listening on. # optional - defaults to 3306 #master-port = <port> # Make the slave read-only. Only users with the SUPER privilege and the # replication slave thread will be able to modify data on it. You can # use this to ensure that no applications will accidently modify data on # the slave instead of the master #read_only #*** MyISAM Specific options # Size of the Key Buffer, used to cache index blocks for MyISAM tables. # Do not set it larger than 30% of your available memory, as some memory # is also required by the OS to cache rows. Even if you're not using # MyISAM tables, you should still set it to 8-64M as it will also be # used for internal temporary disk tables. key_buffer_size = 128M可用 # MyISAM uses special tree-like cache to make bulk inserts (that is, # INSERT ... SELECT, INSERT ... VALUES (...), (...), ..., and LOAD DATA # INFILE) faster. This variable limits the size of the cache tree in # bytes per thread. Setting it to 0 will disable this optimisation. Do # not set it larger than "key_buffer_size" for optimal performance. # This buffer is allocated when a bulk insert is detected. bulk_insert_buffer_size = 64M可用 # This buffer is allocated when MySQL needs to rebuild the index in # REPAIR, OPTIMIZE, ALTER table statements as well as in LOAD DATA INFILE # into an empty table. It is allocated per thread so be careful with # large settings. myisam_sort_buffer_size = 128M可用 # The maximum size of the temporary file MySQL is allowed to use while # recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE. # If the file-size would be bigger than this, the index will be created # through the key cache (which is slower). myisam_max_sort_file_size = 30G可用 # If a table has more than one index, MyISAM can use more than one # thread to repair them by sorting in parallel. This makes sense if you # have multiple CPUs and plenty of memory. myisam_repair_threads = 1可用 # Automatically check and repair not properly closed MyISAM tables. myisam_recover可用 # *** INNODB Specific options *** # Use this option if you have a MySQL server with InnoDB support enabled # but you do not plan to use it. This will save memory and disk space # and speed up some things. #skip-innodb # Additional memory pool that is used by InnoDB to store metadata # information. If InnoDB requires more memory for this purpose it will # start to allocate it from the OS. As this is fast enough on most # recent operating systems, you normally do not need to change this # value. SHOW INNODB STATUS will display the current amount used. innodb_additional_mem_pool_size = 16M可用 # InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and # row data. The bigger you set this the less disk I/O is needed to # access data in tables. On a dedicated database server you may set this # parameter up to 80% of the machine physical memory size. Do not set it # too large, though, because competition of the physical memory may # cause paging in the operating system. Note that on 32bit systems you # might be limited to 2-3.5G of user level memory per process, so do not # set it too high. innodb_buffer_pool_size =2048M可用 # InnoDB stores data in one or more data files forming the tablespace. # If you have a single logical drive for your data, a single # autoextending file would be good enough. In other cases, a single file # per device is often a good choice. You can configure InnoDB to use raw # disk partitions as well - please refer to the manual for more info # about this. innodb_data_file_path = ibdata1:10M:autoextend可用 # Set this option if you would like the InnoDB tablespace files to be # stored in another location. By default this is the MySQL datadir. #innodb_data_home_dir = <directory> # Number of IO threads to use for async IO operations. This value is # hardcoded to 8 on Unix, but on Windows disk I/O may benefit from a # larger number. innodb_write_io_threads = 8可用 innodb_read_io_threads = 8可用 # If you run into InnoDB tablespace corruption, setting this to a nonzero # value will likely help you to dump your tables. Start from value 1 and # increase it until you're able to dump the table successfully. #innodb_force_recovery=1可用 # Number of threads allowed inside the InnoDB kernel. The optimal value # depends highly on the application, hardware as well as the OS # scheduler properties. A too high value may lead to thread thrashing. innodb_thread_concurrency =8可用 # If set to 1, InnoDB will flush (fsync) the transaction logs to the # disk at each commit, which offers full ACID behavior. If you are # willing to compromise this safety, and you are running small # transactions, you may set this to 0 or 2 to reduce disk I/O to the # logs. Value 0 means that the log is only written to the log file and # the log file flushed to disk approximately once per second. Value 2 # means the log is written to the log file at each commit, but the log # file is only flushed to disk approximately once per second. innodb_flush_log_at_trx_commit = 0可用 # Speed up InnoDB shutdown. This will disable InnoDB to do a full purge # and insert buffer merge on shutdown. It may increase shutdown time a # lot, but InnoDB will have to do it on the next startup instead. #innodb_fast_shutdown # The size of the buffer InnoDB uses for buffering log data. As soon as # it is full, InnoDB will have to flush it to disk. As it is flushed # once per second anyway, it does not make sense to have it very large # (even with long transactions). innodb_log_buffer_size = 8M可用 # Size of each log file in a log group. You should set the combined size # of log files to about 25%-100% of your buffer pool size to avoid # unneeded buffer pool flush activity on log file overwrite. However, # note that a larger logfile size will increase the time needed for the # recovery process. innodb_log_file_size = 128M可用 # Total number of files in the log group. A value of 2-3 is usually good # enough. innodb_log_files_in_group = 2可用 # Location of the InnoDB log files. Default is the MySQL datadir. You # may wish to point it to a dedicated hard drive or a RAID1 volume for # improved performance #innodb_log_group_home_dir可用 # Maximum allowed percentage of dirty pages in the InnoDB buffer pool. # If it is reached, InnoDB will start flushing them out agressively to # not run out of clean pages at all. This is a soft limit, not # guaranteed to be held. innodb_max_dirty_pages_pct = 80可用 # The flush method InnoDB will use for Log. The tablespace always uses # doublewrite flush logic. The default value is "fdatasync", another # option is "O_DSYNC". #innodb_flush_method=O_DSYNC # How long an InnoDB transaction should wait for a lock to be granted # before being rolled back. InnoDB automatically detects transaction # deadlocks in its own lock table and rolls back the transaction. If you # use the LOCK TABLES command, or other transaction-safe storage engines # than InnoDB in the same transaction, then a deadlock may arise which # InnoDB cannot notice. In cases like this the timeout is useful to # resolve the situation. innodb_lock_wait_timeout = 60可用
