MySQL · 配置文件

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配置文件

MySQL 默认配置文件：/etc/my.cnf，自动 生成工具

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[client]
port                      = 3306
socket                    = /data/mysql/mysql.sock
default-character-set     = utf8

[mysql]
default-character-set     = utf8
no-auto-rehash

[mysqld]
port                      = 3306
basedir                   = /usr/local/mysql
datadir                   = /data/mysql
socket                    = /data/mysql/mysql.sock
pid-file                  = /data/mysql/mysql.pid
character-set-server      = utf8
collation-server          = utf8_general_ci
skip_name_resolve

# LOG
slow_query_log            = 1
long_query_time           = 5
log_error                 = /data/mysql/error.log
slow_query_log_file       = /data/mysql/slow.log

# INNODB
innodb_data_home_dir      = /data/mysql
innodb_buffer_pool_size   = 10240M
innodb_log_file_size      = 2G
innodb_data_file_path     = ibdata1:1G:autoextend
innodb_buffer_pool_instances = 4
innodb_max_undo_log_size  = 4G

# OTHER
back_log                  = 1024
max_connections           = 1000
interactive_timeout       = 600
wait_timeout              = 600
sort_buffer_size          = 16M
join_buffer_size          = 16M
lower_case_table_names    = 1
log_timestamps            = SYSTEM
explicit_defaults_for_timestamp = 1
log_queries_not_using_indexes   = 1

server-id                 = 3306100
log-bin                   = /data/mysql/mysql-bin
sync_binlog               = 1
max_binlog_size           = 1024M
binlog-format             = row
expire_logs_days          = 7
  • [mysql]：该部分由 MySQL 命令行客户端读取
  • [client]：该部分由所有连接的客户端读取（包括 mysql cli）
  • [mysqld]：该部分由 MySQL 服务器读取
  • [mysqldump]：该部分由 mysqldump 命令读取
  • [mysqld_safe]：该部分由 mysqld_safe 命令读取

参数类型

  • 静态参数：重启 MySQL 服务后才能使之生效。
  • 动态参数：可以在不重新启动 MySQL 服务的情况下立即生效。

参数详解

  • MySQL · 配置参数 · innodb_buffer_pool_size
  • MySQL · 配置参数 · max_connections