【MySQL】my.cnf 配置文件

记录一份 my.cnf 作为自己生产的标配, 仅供参考。

[client]

default-character-set         = utf8mb4

port                          = PORT

socket                        = /srv/myPORT/run/mysql.sock

[mysqld]

user                          = mysql

port                          = PORT

extra-port                    = 1PORT

character_set_server          = utf8mb4

server_id                     = SERVER_ID

socket                        = /srv/myPORT/run/mysql.sock

basedir                       = /opt/percona-server

datadir                       = /srv/myPORT/data

log-error                     = /srv/myPORT/log/alert.log

pid-file                      = /srv/myPORT/run/mysql.pid

log_slave_updates             = 1

log-bin                       = /srv/myPORT/log/mysql-bin

binlog_format                 = row

binlog_cache_size             = 2M

max_binlog_cache_size         = 4G

max_binlog_size               = 1G

expire_logs_days              = 7

relay-log                     = /srv/myPORT/log/relay-bin

relay-log-info-file           = /srv/myPORT/log/relay-log.info

relay-log-index               = /srv/myPORT/log/relay-log.index

master-info-file              = /srv/myPORT/log/master.info

relay-log-recovery            = true

sync-relay-log-info           = 1

explicit_defaults_for_timestamp

key_buffer_size               = 2M

sort_buffer_size              = 2M

read_buffer_size              = 2M

read_rnd_buffer_size          = 16M

join_buffer_size              = 2M

thread_cache_size             = 1024

query_cache_size              = 1M

query_cache_limit             = 1M

query_cache_min_res_unit      = 2k

table_open_cache              = 2048

open_files_limit              = 65535

back_log                      = 3000

max_connections               = 4000

max_user_connections          = 2500

max_connect_errors            = 100

max_allowed_packet            = 512M

thread_stack                  = 192k

default-storage-engine        = INNODB

transaction_isolation         = READ-COMMITTED

tmp_table_size                = 16M

max_heap_table_size           = 64M

bulk_insert_buffer_size       = 64M

long_query_time               = 0.5

slow_query_log                = on

slow_query_log_file           = /srv/myPORT/log/slow.log

skip-name-resolve

innodb_buffer_pool_size       = 10G

innodb_data_file_path         = ibdata1:2G:autoextend

innodb_file_io_threads        = 24

innodb_purge_threads          = 12

innodb_read_io_threads        = 24

innodb_write_io_threads       = 24

innodb_thread_concurrency     = 24

innodb_buffer_pool_instances  = 8

innodb_flush_log_at_trx_commit= 1

innodb_log_buffer_size        = 16M

innodb_log_file_size          = 2G

innodb_log_files_in_group     = 2

innodb_max_dirty_pages_pct    = 75

innodb_lock_wait_timeout      = 50

innodb_file_per_table         = 1

thread_handling               = pool-of-threads

thread_pool_idle_timeout      = 180

thread_pool_max_threads       = 5000

thread_pool_size              = 24

thread_pool_oversubscribe     = 10

thread_pool_stall_limit       = 500

[mysqldump]

quick

max_allow_packet              = 64M

[mysql]

no-auto-rehash

[mysqlhotcopy]

interactive-timeout