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数据库|my-large.cnf

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mysql 的默认配置文件 [root@localhost home]# vim /etc/my.cnf# Example MySQL config file for large systems. # # This is for a large system with memory = 512M where the system runs mainly # MySQL. # # MySQL programs look for option files in a set of # locations which depend on the deployment platform. # You can copy this option file to one of those # locations. For information about these locations, see: # http://dev.mysql.com/doc/mysql/en/option-files.html # # In this file, you can use all long options that a program supports. # If you want to know which options a program supports, run the program # with the "--help" option. # The following options will be passed to all MySQL clients [client] #password= your_password port= 3306 socket= /tmp/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port= 3306 socket= /tmp/mysql.sock skip-external-locking key_buffer_size = 256M max_allowed_packet = 1M table_open_cache = 256 sort_buffer_size = 1M read_buffer_size = 1M read_rnd_buffer_size = 4M myisam_sort_buffer_size = 64M thread_cache_size = 8 query_cache_size= 16M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 8 # Don't listen on a TCP/IP port at all. This can be a security enhancement, # if all processes that need to connect to mysqld run on the same host. # All interaction with mysqld must be made via Unix sockets or named pipes. # Note that using this option without enabling named pipes on Windows # (via the "enable-named-pipe" option) will render mysqld useless! # #skip-networking # Replication Master Server (default) # binary logging is required for replication log-bin=mysql-bin # binary logging format - mixed recommended binlog_format=mixed # required unique id between 1 and 2^32 - 1 # defaults to 1 if master-host is not set # but will not function as a master if omitted server-id= 1 # 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=, MASTER_PORT=, #MASTER_USER=, MASTER_PASSWORD=【数据库|my-large.cnf】 ; # #where you replace , , by quoted strings and # 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 #change in this file to the variables' 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= # # The username the slave will use for authentication when connecting # to the master - required #master-user= # # The password the slave will authenticate with when connecting to # the master - required #master-password =# # The port the master is listening on. # optional - defaults to 3306 #master-port=# # binary logging - not required for slaves, but recommended #log-bin=mysql-bin # Uncomment the following if you are using InnoDB tables #innodb_data_home_dir = /mydata/data #innodb_data_file_path = ibdata1:10M:autoextend #innodb_log_group_home_dir = /mydata/data # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high #innodb_buffer_pool_size = 256M #innodb_additional_mem_pool_size = 20M # Set .._log_file_size to 25 % of buffer pool size #innodb_log_file_size = 64M #innodb_log_buffer_size = 8M #innodb_flush_log_at_trx_commit = 1 #innodb_lock_wait_timeout = 50 [mysqldump] quick max_allowed_packet = 16M [mysql] no-auto-rehash # Remove the next comment character if you are not familiar with SQL #safe-updates [myisamchk] key_buffer_size = 128M sort_buffer_size = 128M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout



转载于:https://blog.51cto.com/990487026/1697647

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