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