mysql my.cnf优化

[mysqld]
lower_case_table_names = 1
sql_mode = STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION

skip_name_resolve = 1
character_set_server = utf8
collation_server = utf8_unicode_ci
back_log = 300
max_connections = 1000
max_connect_errors = 100000
interactive_timeout = 600
wait_timeout = 600

table_open_cache = 2048
query_cache_type = OFF
query_cache_size = 0
query_cache_limit = 8M
thread_cache_size = 51
max_allowed_packet = 16M

tmp_table_size = 256M
max_tmp_tables = 128
max_heap_table_size = 256M
sort_buffer_size = 256M
read_buffer_size = 256M #顺序IO
join_buffer_size = 256M
read_rnd_buffer_size = 256M #随机IO
bulk_insert_buffer_size = 256M #
open_files_limit = 65536

default_storage_engine = InnoDB
expire_logs_days = 1
slow_query_log = 1
long_query_time = 1
log_output = FILE
log_queries_not_using_indexes = 1
server_id = 1013306
#binlog_format = mixed
#log_slave_updates = 1
#max_binlog_files=100
#max_binlog_cache_size = 1024M
#max_binlog_size = 1024M
#binlog_cache_size = 4M
sync_binlog = 0

#innodb
innodb_buffer_pool_instances = 16
innodb_buffer_pool_size = 8G
innodb_buffer_pool_dump_pct = 75
innodb_page_cleaners = 8
innodb_log_file_size = 512M
innodb_log_files_in_group = 2
innodb_log_buffer_size = 32M #default 16M
innodb_flush_log_at_trx_commit = 2
innodb_lock_wait_timeout = 30
innodb_thread_concurrency = 30

innodb_undo_logs = 128 #must >=35.default 128
innodb_undo_tablespaces = 0 #must >=2
innodb_undo_log_truncate = 1
innodb_max_undo_log_size = 1000M
innodb_purge_rseg_truncate_frequency = 128

innodb_print_all_deadlocks = 1
innodb_buffer_pool_load_at_startup = 1
innodb_buffer_pool_dump_at_shutdown = 1
innodb_open_files = 65536
innodb_file_per_table = 1
innodb_lock_wait_timeout = 30
innodb_read_io_threads = 8
innodb_write_io_threads = 8
innodb_io_capacity = 2000
innodb_io_capacity_max = 4000
innodb_flush_method = O_DIRECT
innodb_purge_threads = 4
innodb_support_xa = 1
innodb_max_dirty_pages_pct = 75
transaction_isolation = REPEATABLE-READ
show_compatibility_56 = on
innodb_sort_buffer_size = 16M
#rep
slave-parallel-type = LOGICAL_CLOCK
slave-parallel-workers = 16
master_info_repository = TABLE
relay_log_info_repository = TABLE
relay_log_recovery = ON
slave_skip_errors = ddl_exist_errors

[mysqldump]
max_allowed_packet = 16M

[mysql]
default_character_set = utf8

[mysqld]
#validate_password
plugin-load = validate_password.so
validate_password_policy = 1
validate-password = FORCE_PLUS_PERMANENT