自己的：

[mysqld]

basedir = /usr/local/mysql

datadir = /data/mysql

port = 3306

server_id = 2

socket = /tmp/mysql.sock

pid-file=/tmp/mysql_3306.pid

binlog_cache_size = 1M

binlog_format=row

log-error = /data1/log/3306.err

log-bin=/data1/binlog/mysql-bin

skip-name-resolve

sync_binlog=1

explicit_defaults_for_timestamp

sql_mode=STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER

expire_logs_days = 7

default-storage-engine=INNODB

max_connect_errors = 100000

max_connections=3000

#####     Global Buffers     ###########################################

innodb_autoinc_lock_mode=2

innodb_file_per_table=1

innodb_flush_log_at_trx_commit=2

innodb_buffer_pool_size = 93G  

innodb_log_buffer_size = 64M

innodb_log_file_size = 512M

innodb_lock_wait_timeout = 120

innodb_data_home_dir = /data/mysql  

innodb_data_file_path = ibdata1:1G:autoextend  

innodb_log_group_home_dir = /data1/redolog

innodb_io_capacity = 30000

innodb_max_dirty_pages_pct = 75

innodb_open_files = 4096

innodb_page_size = 16k

innodb_purge_threads=4

innodb_large_prefix = 1 

innodb_thread_concurrency = 128

innodb_write_io_threads=64

innodb_read_io_threads=64

innodb_print_all_deadlocks = 1 

innodb_strict_mode = 1 

innodb_sort_buffer_size = 60M

innodb_online_alter_log_max_size=1G

innodb_use_native_aio=1

transaction-isolation = READ-COMMITTED

#####    table cache performance settings   ############################

table_open_cache = 4096

table_definition_cache = 4096

table_open_cache_instances = 64

#####     Thread Buffers     ###########################################

sort_buffer_size = 16M  

myisam_sort_buffer_size = 256M  

read_buffer_size = 8M  

join_buffer_size = 16M  

read_rnd_buffer_size = 64M

max_heap_table_size = 32M  

tmp_table_size = 32M

thread_cache_size = 16  

wait_timeout = 30  

open_files_limit = 65535

max_allowed_packet = 20M

wsrep_provider=/usr/lib64/libgalera_smm.so

wsrep_cluster_address=gcomm://172.31.101.29,172.31.101.30,172.31.101.31

wsrep_node_address=172.31.101.29

wsrep_sst_method=xtrabackup-v2

wsrep_cluster_name=my_centos_cluster

wsrep_sst_auth="sstuser:sstuser"

[mysqld_safe]

malloc-lib=/usr/lib64/libjemalloc.so.2

Inside君整理了一份最新基于MySQL 5.6和5.7的配置文件模板，基本上可以说覆盖90%的调优选项，用户只需根据自己的服务器配置稍作修改即可，如InnoDB缓冲池的大小、IO能力（innodb_buffer_pool_size，innodb_io_capacity)。特别注意，这份配置文件不用修改，可以直接运行在MySQL 5.6和5.7的版本下，这里使用了小小的技巧，具体可看配置文件。如果配置参数存在问题，也可以及时反馈Inside君，我们一起成长。

触发Inside君做这件事情的原因是大部分网络上的MySQL配置文件都非常非常古老，大多都是基于MySQL 5.1的版本，这导致了绝大部分MySQL并没有运行在最优的环境，从而导致一些错误的使用，亦或是灾难性事故的发生，比如数据丢失，主从数据不一致等。而这些问题早在5.6版本及以后的版本中得到了解决。

最后，抛弃你那所谓的、陈旧的、错误的MySQL配置文件，面向一个崭新的高性能、高可靠、高可扩展MySQL时代，你要做的就是下载这份配置文件并用于你的生产环境

[client]
user=david
password=88888888

[mysqld]
########basic settings########
server-id = 11 
port = 3306
user = mysql
bind_address = 10.166.224.32
autocommit = 0
character_set_server=utf8mb4
skip_name_resolve = 1
max_connections = 800
max_connect_errors = 1000
datadir = /data/mysql_data
transaction_isolation = READ-COMMITTED
explicit_defaults_for_timestamp = 1
join_buffer_size = 134217728
tmp_table_size = 67108864
tmpdir = /tmp
max_allowed_packet = 16777216
sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
interactive_timeout = 1800
wait_timeout = 1800
read_buffer_size = 16777216
read_rnd_buffer_size = 33554432
sort_buffer_size = 33554432
########log settings########
log_error = error.log
slow_query_log = 1
slow_query_log_file = slow.log
log_queries_not_using_indexes = 1
log_slow_admin_statements = 1
log_slow_slave_statements = 1
log_throttle_queries_not_using_indexes = 10
expire_logs_days = 90
long_query_time = 2
min_examined_row_limit = 100
########replication settings########
master_info_repository = TABLE
relay_log_info_repository = TABLE
log_bin = bin.log
sync_binlog = 1
gtid_mode = on
enforce_gtid_consistency = 1
log_slave_updates
binlog_format = row 
relay_log = relay.log
relay_log_recovery = 1
binlog_gtid_simple_recovery = 1
slave_skip_errors = ddl_exist_errors
########innodb settings########
innodb_page_size = 8192
innodb_buffer_pool_size = 6G
innodb_buffer_pool_instances = 8
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_dump_at_shutdown = 1
innodb_lru_scan_depth = 2000
innodb_lock_wait_timeout = 5
innodb_io_capacity = 4000
innodb_io_capacity_max = 8000
innodb_flush_method = O_DIRECT
innodb_file_format = Barracuda
innodb_file_format_max = Barracuda
innodb_log_group_home_dir = /redolog/
innodb_undo_directory = /undolog/
innodb_undo_logs = 128
innodb_undo_tablespaces = 3
innodb_flush_neighbors = 1
innodb_log_file_size = 4G
innodb_log_buffer_size = 16777216
innodb_purge_threads = 4
innodb_large_prefix = 1
innodb_thread_concurrency = 64
innodb_print_all_deadlocks = 1
innodb_strict_mode = 1
innodb_sort_buffer_size = 67108864 
########semi sync replication settings########
plugin_dir=/usr/local/mysql/lib/plugin
plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
loose_rpl_semi_sync_master_enabled = 1
loose_rpl_semi_sync_slave_enabled = 1
loose_rpl_semi_sync_master_timeout = 5000

[mysqld-5.7]
innodb_buffer_pool_dump_pct = 40
innodb_page_cleaners = 4
innodb_undo_log_truncate = 1
innodb_max_undo_log_size = 2G
innodb_purge_rseg_truncate_frequency = 128
binlog_gtid_simple_recovery=1
log_timestamps=system
transaction_write_set_extraction=MURMUR32
show_compatibility_56=on

本文出自 “12729686” 博客，请务必保留此出处http://12739686.blog.51cto.com/12729686/1908825

Mysql参数配置+Inside君推荐配置