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- intel_idle.max_cstate=0 idle=poll quiet cgroup_enable=memory crashkernel=256M intel_pstate=disable
- [mysql]
- default-character-set=utf8mb4
- user = root
- password = 123456
- port = 3306
- socket = /tmp/mysqld.sock
- prompt="\u@\h \d>"
- [mysqld]
- # basic settings #
- user = mysql
- bind-address = 0.0.0.0
- socket = /tmp/mysqld.sock
- character_set_server = utf8mb4
- transaction_isolation = READ-COMMITTED
- explicit_defaults_for_timestamp = 1
- max_allowed_packet = 16777216
- event_scheduler = 1
- default_password_lifetime = 0
- autocommit = 1
- server-id = 1
- sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER"
- # connection #
- interactive_timeout = 1800
- wait_timeout = 1800
- lock_wait_timeout = 1800
- skip_name_resolve = 1
- max_connections = 512
- max_connect_errors = 1000000
- # table cache performance settings #
- table_open_cache = 4096
- table_definition_cache = 4096
- table_open_cache_instances = 128 #最大64
- # 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 = 64
- # log settings #
- log_error = error.log
- log-bin = mysql-bin
- 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 = 30
- long_query_time = 2
- min_examined_row_limit = 100
- binlog-rows-query-log-events = 1
- log-bin-trust-function-creators = 1
- log-slave-updates = 1
- # innodb settings #
- innodb_page_size = 16384
- innodb_buffer_pool_size = 160G
- innodb_buffer_pool_instances = 16
- innodb_buffer_pool_load_at_startup = 1
- innodb_buffer_pool_dump_at_shutdown = 1
- innodb_lru_scan_depth = 4096
- innodb_lock_wait_timeout = 5
- innodb_io_capacity = 10000
- innodb_io_capacity_max = 20000
- innodb_flush_method = O_DIRECT
- innodb_file_format = Barracuda
- innodb_file_format_max = Barracuda
- innodb_undo_logs = 128
- innodb_undo_tablespaces = 3
- innodb_flush_neighbors = 0
- innodb_log_file_size = 17179869184
- innodb_log_files_in_group = 2
- 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
- innodb_write_io_threads = 16
- innodb_read_io_threads = 16
- innodb_file_per_table = 1
- innodb_stats_persistent_sample_pages = 64
- innodb_autoinc_lock_mode = 2
- innodb_online_alter_log_max_size=1G
- innodb_open_files=4096
- innodb_flush_log_at_trx_commit=1
- # replication settings #
- master_info_repository = TABLE
- relay_log_info_repository = TABLE
- sync_binlog = 1
- gtid_mode = on
- enforce_gtid_consistency = 1
- log_slave_updates
- binlog_format = ROW
- binlog_rows_query_log_events = 1
- relay_log = relay.log
- relay_log_purge = 1
- relay_log_recovery = 1
- report-port = 3306
- report-host = 10.106.144.11
- slave_skip_errors = ddl_exist_errors
- slave-rows-search-algorithms = 'INDEX_SCAN,HASH_SCAN'
- # semi sync replication settings #
- plugin_load = "validate_password.so;rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so"
- rpl_semi_sync_master_enabled = 1
- rpl_semi_sync_master_timeout = 3000
- rpl_semi_sync_slave_enabled = 1
- # password plugin #
- validate_password_policy=STRONG
- validate-password=FORCE_PLUS_PERMANENT
- [mysqld-5.6]
- # metalock performance settings
- metadata_locks_hash_instances=64
- [mysqld-5.7]
- # new innodb settings #
- loose_innodb_numa_interleave=1
- innodb_buffer_pool_dump_pct = 40
- innodb_page_cleaners = 16
- innodb_undo_log_truncate = 1
- innodb_max_undo_log_size = 2G
- innodb_purge_rseg_truncate_frequency = 128
- # new replication settings #
- slave-parallel-type = LOGICAL_CLOCK
- slave-parallel-workers = 16
- slave_preserve_commit_order=1
- slave_transaction_retries=128
- # other change settings #
- binlog_gtid_simple_recovery=1
- log_timestamps=system
- show_compatibility_56=on
- I assume the MySQL Server as followings. You should tune the variables according to your server.
- 32 CPU core
- 256G Memory
- SSD storage with 20000 IOPS in 16K page size
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