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=davidpassword=88888888[mysqld]########basic settings########server-id = 11 port = 3306user = mysqlbind_address = 10.166.224.32autocommit = 0character_set_server=utf8mb4skip_name_resolve = 1max_connections = 800max_connect_errors = 1000datadir = /data/mysql_datatransaction_isolation = READ-COMMITTEDexplicit_defaults_for_timestamp = 1join_buffer_size = 134217728tmp_table_size = 67108864tmpdir = /tmpmax_allowed_packet = 16777216sql_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 = 1800wait_timeout = 1800read_buffer_size = 16777216read_rnd_buffer_size = 33554432sort_buffer_size = 33554432########log settings########log_error = error.logslow_query_log = 1slow_query_log_file = slow.loglog_queries_not_using_indexes = 1log_slow_admin_statements = 1log_slow_slave_statements = 1log_throttle_queries_not_using_indexes = 10expire_logs_days = 90long_query_time = 2min_examined_row_limit = 100########replication settings########master_info_repository = TABLErelay_log_info_repository = TABLElog_bin = bin.logsync_binlog = 1gtid_mode = onenforce_gtid_consistency = 1log_slave_updatesbinlog_format = row relay_log = relay.logrelay_log_recovery = 1binlog_gtid_simple_recovery = 1slave_skip_errors = ddl_exist_errors########innodb settings########innodb_page_size = 8192innodb_buffer_pool_size = 6Ginnodb_buffer_pool_instances = 8innodb_buffer_pool_load_at_startup = 1innodb_buffer_pool_dump_at_shutdown = 1innodb_lru_scan_depth = 2000innodb_lock_wait_timeout = 5innodb_io_capacity = 4000innodb_io_capacity_max = 8000innodb_flush_method = O_DIRECTinnodb_file_format = Barracudainnodb_file_format_max = Barracudainnodb_log_group_home_dir = /redolog/innodb_undo_directory = /undolog/innodb_undo_logs = 128innodb_undo_tablespaces = 3innodb_flush_neighbors = 1innodb_log_file_size = 4Ginnodb_log_buffer_size = 16777216innodb_purge_threads = 4innodb_large_prefix = 1innodb_thread_concurrency = 64innodb_print_all_deadlocks = 1innodb_strict_mode = 1innodb_sort_buffer_size = 67108864 ########semi sync replication settings########plugin_dir=/usr/local/mysql/lib/pluginplugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"loose_rpl_semi_sync_master_enabled = 1loose_rpl_semi_sync_slave_enabled = 1loose_rpl_semi_sync_master_timeout = 5000[mysqld-5.7]innodb_buffer_pool_dump_pct = 40innodb_page_cleaners = 4innodb_undo_log_truncate = 1innodb_max_undo_log_size = 2Ginnodb_purge_rseg_truncate_frequency = 128binlog_gtid_simple_recovery=1log_timestamps=systemtransaction_write_set_extraction=MURMUR32show_compatibility_56=on