MySQL 5.6常用参数配置及说明

[client]
user = root
password = Yong_110

[mysql]
prompt = [\\u@\\p][\\d]>\\_
no-auto-rehash

[mysqld_safe]
##默认的内存分配就是c的malloc,建议使用tcmalloc或者jemalloc，优化内存分配
malloc-lib=/usr/lib64/libjemalloc.so

[mysqldump]
##证在备份过程中整个备份集的数据一致性
single-transaction

[mysqld]
# basic settings
user = mysql
server-id =
port =
sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
autocommit =
##指定字符集
character_set_server=utf8mb4
##指定MySQLserver常用路径
basedir =/usr/local/mysql
datadir=/ydata/my57//data
tmpdir = /ydata/my57//data/tmp
socket  = /ydata/my57//run/mysql.sock
pid-file=/ydata/my57//run/mysql.pid
##指定事物隔离级别，默认REPEATABLE-READ
transaction_isolation = READ-COMMITTED
##设置为on表示timestamp列的值都要显示指定
explicit_defaults_for_timestamp =
##最大为1G，默认1M(<=5.6.)或者4M(>=5.6.)，建议调整，避免Packet too large 或者MySQL gone away错误发生
max_allowed_packet = 64M
event_scheduler =
skip-name-resolve
# metalock performance settings
metadata_locks_hash_instances =
# password plugin
validate_password_policy = STRONG
validate-password = FORCE_PLUS_PERMANENT

# connection settings
##服务器关闭交互式连接前等待活动的秒数,默认28800秒（8小时）
interactive_timeout =
##服务器关闭非交互连接之前等待活动的秒数,默认28800秒（8小时）
wait_timeout =
##锁等待的时间,默认50s
lock_wait_timeout =
skip_name_resolve =
##External-locking用于多进程条件下为MyISAM数据表进行锁定
skip-external-locking
max_connections =
max_user_connections =
max_connect_errors = 

# table cache settings
table_open_cache =
table_definition_cache =
table_open_cache_instances = 

# session memory settings
read_buffer_size = 16M
read_rnd_buffer_size = 32M
sort_buffer_size = 32M
tmp_table_size = 64M
join_buffer_size = 128M
thread_cache_size = 

# binlog settings
sync_binlog =
binlog_format = ROW
binlog_rows_query_log_events =
log_bin=/ydata/my57//dblogs/binlog/binlog
gtid_mode = on
enforce_gtid_consistency =
sync_master_info = 

#replication settings
master_info_repository = TABLE
relay_log_info_repository = TABLE
log_slave_updates
relay_log = /ydata/my57//dblogs/relaylog/relay.log
max-relay-log-size=512M
relay_log_recovery =
slave_skip_errors = ddl_exist_errors
slave_rows_search_algorithms = 'INDEX_SCAN,HASH_SCAN'
sync_relay_log =
sync_relay_log_info = 

# semi sync replication settings
plugin-load = "group_replication.so;validate_password.so;semisync_master.so;semisync_slave.so"
loose_rpl_semi_sync_master_enabled =
loose_rpl_semi_sync_master_timeout =
loose_rpl_semi_sync_slave_enabled = 

# log settings #
log_error = /ydata/my57//logs/alter.log
log_error_verbosity =
general_log=
general_log_file = /ydata/my57//logs/general.log
slow_query_log =
long_query_time =
slow_query_log_file = /ydata/my57//logs/slow.log
log_queries_not_using_indexes =
log_slow_admin_statements =
log_slow_slave_statements =
log_throttle_queries_not_using_indexes =
expire_logs_days =
min_examined_row_limit =
log-bin-trust-function-creators =
log-slave-updates = 

###innodb  base settings
innodb_page_size =
innodb_data_home_dir =/ydata/my57//data
innodb_lock_wait_timeout =
innodb_stats_persistent_sample_pages =
innodb_autoinc_lock_mode =
innodb_large_prefix =
innodb_thread_concurrency =
innodb_print_all_deadlocks =
innodb_strict_mode = 

##innodb  memory
innodb_buffer_pool_size = 160G
innodb_sort_buffer_size = 64M
innodb_buffer_pool_instances =
innodb_buffer_pool_load_at_startup =
innodb_buffer_pool_dump_at_shutdown =
innodb_online_alter_log_max_size=1G

##innodb io setting
innodb_write_io_threads =
innodb_read_io_threads =
innodb_purge_threads =
innodb_file_per_table =
innodb_open_files=
innodb_io_capacity =
innodb_io_capacity_max =
innodb_flush_method = O_DIRECT
innodb_lru_scan_depth =
innodb_flush_neighbors = 

# innodb redo/undo settings #
innodb_log_buffer_size = 64M
innodb_log_group_home_dir = /ydata/my57//dblogs/redolog
innodb_data_file_path = ibdata1:100M:autoextend
innodb_undo_logs =
innodb_undo_tablespaces =
innodb_log_file_size = 1G
innodb_log_files_in_group = 

# perforamnce_schema settings
performance-schema-instrument='memory/%=COUNTED'
performance_schema_digests_size =
performance_schema_max_table_instances =
performance_schema_max_sql_text_length =
performance_schema_max_digest_length =