【linux】安装和配置 mysql服务器
按照官网教程，根据自己的系统安装不同的发行版
https://dev.mysql.com/doc/refman/5.6/en/linux-installation-yum-repo.html
配置：
# Example MySQL config file for very large systems. # # This is for a large system with memory of 1G-2G 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 = 13306 socket = /var/lib/mysql/mysql.sock # Here follows entries for some specific programs # The MySQL server [mysqld] port = 13306 socket = /var/lib/mysql/mysql.sock skip-external-locking key_buffer_size = 384M max_allowed_packet = 1M table_open_cache = 512 sort_buffer_size = 4M read_buffer_size = 4M read_rnd_buffer_size = 8M # thread_cache_size = 32 # 1G->8, 2G->16, 3G->32, 3G+->64 # 此值可能引发org.springframework.transaction.CannotCreateTransactionException: Could not open JDBC Connection for transaction;的异常 thread_cache_size = 64 lower_case_table_names=1 # query_cache_type 可以设置为0(OFF)，1(ON)或者2(DEMOND) # 分别表示完全不使用query cache # 除显式要求不使用query cache(使用sql_no_cache)之外的所有的select都使用query cache # 只有显示要求才使用query cache(使用sql_cache) # query_cache_type = ON query_cache_size = 32M # Try number of CPU's*2 for thread_concurrency thread_concurrency = 10 max_connections = 800 back_log = 200 # 以下表明如果列为 TIMESTAMP, 则需要显示指定其行为 # TIMESTAMP如果没有显示声明NOT NULL，是允许NULL值的，可以直接设置改列为NULL，而没有默认填充行为。 # TIMESTAMP不会默认分配DEFAULT CURRENT_TIMESTAMP 和 ON UPDATE CURRENT_TIMESTAMP属性。 # 声明为NOT NULL且没有默认子句的TIMESTAMP列是没有默认值的。往数据表中插入列，又没有给TIMESTAMP列赋值时， # 如果是严格SQL模式，会抛出一 个错误，如果严格SQL模式没有启用，该列会赋值为’0000-00-00 00:00:00′，同时出现一个警告。 # 这和MySQL处理其他时间类型数据一样，如DATETIME explicit_defaults_for_timestamp = true # binlog log_bin = mysql-bin binlog_format = mixed expire_logs_days = 30 #超过30天的binlog删除 # slow query slow_query_log = 1 long_query_time = 1 #慢查询时间 超过1秒则为慢查询 slow_query_log_file = /var/log/mysql-slow.log # MySQL支持4种事务隔离级别，他们分别是： # READ-UNCOMMITTED, READ-COMMITTED, REPEATABLE-READ, SERIALIZABLE. # 如没有指定，MySQL默认采用的是REPEATABLE-READ，ORACLE默认的是READ-COMMITTED transaction_isolation = REPEATABLE-READ # 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 # 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=<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 # 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 = <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> # # binary logging - not required for slaves, but recommended #log-bin=mysql-bin # # binary logging format - mixed recommended #binlog_format=mixed ########################################### # Innodb settings ########################################## # Uncomment the following if you are using InnoDB tables innodb_data_home_dir = /var/lib/mysql # need to be commented, or you will create one # innodb_data_file_path = ibdata1:2000M;ibdata2:10M:autoextend innodb_log_group_home_dir = /var/lib/mysql # You can set .._buffer_pool_size up to 50 - 80 % # of RAM but beware of setting memory usage too high innodb_buffer_pool_size = 1024M innodb_additional_mem_pool_size = 20M # Set .._log_file_size to 25 % of buffer pool size innodb_log_file_size = 100M innodb_log_buffer_size = 8M # 0: fastest but not safe, 1 safest but not fast, 2 fast and safe(1-2s) innodb_flush_log_at_trx_commit = 2 #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 = 256M sort_buffer_size = 256M read_buffer = 2M write_buffer = 2M [mysqlhotcopy] interactive-timeout
