===== MySQL Performance ===== [[http://www.speedemy.com/17-key-mysql-config-file-settings-mysql-5-7-proof/]]\\ [[http://speedemy.com/files/mysql/my.cnf]]\\ {{youtube>0CqMv0ucqFA?medium}} ==== Slow Query Log Analysis ==== wget percona.com/get/pt-query-digest \\ chmod 750 pt-query-digest \\ ./pt-query-digest /var/lib/mysql/slow-query.log > /root/slow-query-log.out ==== Performance Schema Scripts ==== -- Unused Indexes select * from sys.schema_unused_indexes; select object_schema, object_name, index_name from performance_schema.table_io_waits_summary_by_index_usage where index name is not null and count_star = 0 order by object_schema, object_name; -- Queries not using Indexes SELECT THREAD_ID TID, SUBSTR(SQL_TEXT, 1, 50) SQL_TEXT, ROWS_SENT RS, ROWS_EXAMINED RE,CREATED_TMP_TABLES,NO_INDEX_USED,NO_GOOD_INDEX_USED FROM performance_schema.events_statements_history WHERE NO_INDEX_USED=1 OR NO_GOOD_INDEX_USED=1; -- Queries using Full Table Scans SELECT query, db, total_latency, no_index_used_count, rows_sent, rows_examined, last_seen FROM sys.statements_with_full_table_scans WHERE db not in ('performance_schema','sys') ORDER BY last_seen DESC limit 50; -- Process List SELECT PROCESSLIST_ID AS id, PROCESSLIST_USER AS user, PROCESSLIST_HOST AS host, PROCESSLIST_DB AS db, PROCESSLIST_COMMAND AS command, PROCESSLIST_TIME AS time, PROCESSLIST_STATE AS state, LEFT(PROCESSLIST_INFO, 80) AS info FROM performance_schema.threads WHERE PROCESSLIST_ID IS NOT NULL AND PROCESSLIST_COMMAND NOT IN ('Sleep', 'Binlog Dump') ORDER BY PROCESSLIST_TIME ASC; -- Hot Databases (Disk Utilisation) select sys.extract_schema_from_file_name(file_name) as table_schema, sum(count_read) as io_read_requests, sys.format_bytes(sum(sum_number_of_bytes_read)) as io_read, sys.format_time(sum(sum_timer_read)) as io_read_latency, sum(count_write) as io_write_requests, sys.format_bytes(sum(sum_number_of_bytes_write)) as io_write, sys.format_time(sum(sum_timer_write)) as io_write_latency, sum(count_misc) as io_misc_requests, sys.format_time(sum(sum_timer_misc)) as io_misc_latency from performance_schema.file_summary_by_instance group by table_schema order by io_write_requests DESC limit 20; -- Hot Tables (Disk Utilisation) select concat(sys.extract_schema_from_file_name(file_name),'.', sys.extract_table_from_file_name(file_name)) as unique_table_name, sum(count_read) as io_read_requests, sys.format_bytes(sum(sum_number_of_bytes_read)) as io_read, sys.format_time(sum(sum_timer_read)) as io_read_latency, sum(count_write) as io_write_requests, sys.format_bytes(sum(sum_number_of_bytes_write)) as io_write, sys.format_time(sum(sum_timer_write)) as io_write_latency, sum(count_misc) as io_misc_requests, sys.format_time(sum(sum_timer_misc)) as io_misc_latency from performance_schema.file_summary_by_instance group by unique_table_name order by io_write_requests DESC limit 20; -- User Reports select * from sys.user_summary limit 10; select user,statement,total,rows_sent,rows_examined,rows_affected,full_scans from sys.user_summary_by_statement_type limit 100; -- Active Queries SELECT CONCAT_WS( '','# Time: ', date_format(CURDATE(),'%y%m%d'),' ',TIME_FORMAT(NOW(6),'%H:%i:%s.%f'),'\n' ,'# User@Host: ',t.PROCESSLIST_USER,'[',t.PROCESSLIST_USER,'] @ ',PROCESSLIST_HOST,' []  Id: ',t.PROCESSLIST_ID,'\n' ,'# Schema: ',CURRENT_SCHEMA,'  Last_errno: ',MYSQL_ERRNO,'  ','\n' ,'# Query_time: ',ROUND(s.TIMER_WAIT / 1000000000000, 6),' Lock_time: ',ROUND(s.LOCK_TIME / 1000000000000, 6),'  Rows_sent: ',ROWS_SENT,'  Rows_examined: ',ROWS_EXAMINED,'  Rows_affected: ',ROWS_AFFECTED,'\n' ,'# Tmp_tables: ',CREATED_TMP_TABLES,'  Tmp_disk_tables: ',CREATED_TMP_DISK_TABLES,'  ','\n' ,'# Full_scan: ',IF(SELECT_SCAN=0,'No','Yes'),'  Full_join: ',IF(SELECT_FULL_JOIN=0,'No','Yes'),'  Tmp_table: ',IF(CREATED_TMP_TABLES=0,'No','Yes'),'  Tmp_table_on_disk: ',IF(CREATED_TMP_DISK_TABLES=0,'No','Yes'),'\n' , t.PROCESSLIST_INFO,';') FROM performance_schema.events_statements_history s JOIN performance_schema.threads t using(thread_id) WHERE t.TYPE = 'FOREGROUND' AND t.PROCESSLIST_INFO IS NOT NULL AND t.PROCESSLIST_ID != connection_id() ORDER BY t.PROCESSLIST_TIME desc; ==== Default configuration values ==== My SQL 5.7.25, Windows Zip Installation. \\ | auto_increment_increment | 1 | | auto_increment_offset | 1 | | autocommit | ON | | automatic_sp_privileges | ON | | avoid_temporal_upgrade | OFF | | back_log | 80 | | basedir | C:\Users\Doob\MySQL\ | | big_tables | OFF | | bind_address | * | | binlog_cache_size | 32768 | | binlog_checksum | CRC32 | | binlog_direct_non_transactional_updates | OFF | | binlog_error_action | ABORT_SERVER | | binlog_format | ROW | | binlog_group_commit_sync_delay | 0 | | binlog_group_commit_sync_no_delay_count | 0 | | binlog_gtid_simple_recovery | ON | | binlog_max_flush_queue_time | 0 | | binlog_order_commits | ON | | binlog_row_image | FULL | | binlog_rows_query_log_events | OFF | | binlog_stmt_cache_size | 32768 | | binlog_transaction_dependency_history_size | 25000 | | binlog_transaction_dependency_tracking | COMMIT_ORDER | | block_encryption_mode | aes-128-ecb | | bulk_insert_buffer_size | 8388608 | | character_set_client | cp850 | | character_set_connection | cp850 | | character_set_database | latin1 | | character_set_filesystem | binary | | character_set_results | cp850 | | character_set_server | latin1 | | character_set_system | utf8 | | character_sets_dir | C:\Users\Doob\MySQL\share\charsets\ | | check_proxy_users | OFF | | collation_connection | cp850_general_ci | | collation_database | latin1_swedish_ci | | collation_server | latin1_swedish_ci | | completion_type | NO_CHAIN | | concurrent_insert | AUTO | | connect_timeout | 10 | | core_file | OFF | | datadir | C:\Users\Doob\MySQL\data\ | | date_format | %Y-%m-%d | | datetime_format | %Y-%m-%d %H:%i:%s | | default_authentication_plugin | mysql_native_password | | default_password_lifetime | 0 | | default_storage_engine | InnoDB | | default_tmp_storage_engine | InnoDB | | default_week_format | 0 | | delay_key_write | ON | | delayed_insert_limit | 100 | | delayed_insert_timeout | 300 | | delayed_queue_size | 1000 | | disabled_storage_engines | | | disconnect_on_expired_password | ON | | div_precision_increment | 4 | | end_markers_in_json | OFF | | enforce_gtid_consistency | OFF | | eq_range_index_dive_limit | 200 | | error_count | 0 | | event_scheduler | OFF | | expire_logs_days | 0 | | explicit_defaults_for_timestamp | OFF | | external_user | | | flush | OFF | | flush_time | 0 | | foreign_key_checks | ON | | ft_boolean_syntax | + -><()~*:""&| | | ft_max_word_len | 84 | | ft_min_word_len | 4 | | ft_query_expansion_limit | 20 | | ft_stopword_file | (built-in) | | general_log | OFF | | general_log_file | C:\Users\Doob\MySQL\data\Doob-ZooPC.log | | group_concat_max_len | 1024 | | gtid_executed_compression_period | 1000 | | gtid_mode | OFF | | gtid_next | AUTOMATIC | | gtid_owned | | | gtid_purged | | | have_compress | YES | | have_crypt | NO | | have_dynamic_loading | YES | | have_geometry | YES | | have_openssl | DISABLED | | have_profiling | YES | | have_query_cache | YES | | have_rtree_keys | YES | | have_ssl | DISABLED | | have_statement_timeout | YES | | have_symlink | YES | | host_cache_size | 279 | | hostname | Doob-ZooPC | | identity | 0 | | ignore_builtin_innodb | OFF | | ignore_db_dirs | | | init_connect | | | init_file | | | init_slave | | | innodb_adaptive_flushing | ON | | innodb_adaptive_flushing_lwm | 10 | | innodb_adaptive_hash_index | ON | | innodb_adaptive_hash_index_parts | 8 | | innodb_adaptive_max_sleep_delay | 150000 | | innodb_api_bk_commit_interval | 5 | | innodb_api_disable_rowlock | OFF | | innodb_api_enable_binlog | OFF | | innodb_api_enable_mdl | OFF | | innodb_api_trx_level | 0 | | innodb_autoextend_increment | 64 | | innodb_autoinc_lock_mode | 1 | | innodb_buffer_pool_chunk_size | 134217728 | | innodb_buffer_pool_dump_at_shutdown | ON | | innodb_buffer_pool_dump_now | OFF | | innodb_buffer_pool_dump_pct | 25 | | innodb_buffer_pool_filename | ib_buffer_pool | | innodb_buffer_pool_instances | 1 | | innodb_buffer_pool_load_abort | OFF | | innodb_buffer_pool_load_at_startup | ON | | innodb_buffer_pool_load_now | OFF | | innodb_buffer_pool_size | 134217728 | | innodb_change_buffer_max_size | 25 | | innodb_change_buffering | all | | innodb_checksum_algorithm | crc32 | | innodb_checksums | ON | | innodb_cmp_per_index_enabled | OFF | | innodb_commit_concurrency | 0 | | innodb_compression_failure_threshold_pct | 5 | | innodb_compression_level | 6 | | innodb_compression_pad_pct_max | 50 | | innodb_concurrency_tickets | 5000 | | innodb_data_file_path | ibdata1:12M:autoextend | | innodb_data_home_dir | | | innodb_deadlock_detect | ON | | innodb_default_row_format | dynamic | | innodb_disable_sort_file_cache | OFF | | innodb_doublewrite | ON | | innodb_fast_shutdown | 1 | | innodb_file_format | Barracuda | | innodb_file_format_check | ON | | innodb_file_format_max | Barracuda | | innodb_file_per_table | ON | | innodb_fill_factor | 100 | | innodb_flush_log_at_timeout | 1 | | innodb_flush_log_at_trx_commit | 1 | | innodb_flush_method | | | innodb_flush_neighbors | 1 | | innodb_flush_sync | ON | | innodb_flushing_avg_loops | 30 | | innodb_force_load_corrupted | OFF | | innodb_force_recovery | 0 | | innodb_ft_aux_table | | | innodb_ft_cache_size | 8000000 | | innodb_ft_enable_diag_print | OFF | | innodb_ft_enable_stopword | ON | | innodb_ft_max_token_size | 84 | | innodb_ft_min_token_size | 3 | | innodb_ft_num_word_optimize | 2000 | | innodb_ft_result_cache_limit | 2000000000 | | innodb_ft_server_stopword_table | | | innodb_ft_sort_pll_degree | 2 | | innodb_ft_total_cache_size | 640000000 | | innodb_ft_user_stopword_table | | | innodb_io_capacity | 200 | | innodb_io_capacity_max | 2000 | | innodb_large_prefix | ON | | innodb_lock_wait_timeout | 50 | | innodb_locks_unsafe_for_binlog | OFF | | innodb_log_buffer_size | 16777216 | | innodb_log_checksums | ON | | innodb_log_compressed_pages | ON | | innodb_log_file_size | 50331648 | | innodb_log_files_in_group | 2 | | innodb_log_group_home_dir | .\ | | innodb_log_write_ahead_size | 8192 | | innodb_lru_scan_depth | 1024 | | innodb_max_dirty_pages_pct | 75.000000 | | innodb_max_dirty_pages_pct_lwm | 0.000000 | | innodb_max_purge_lag | 0 | | innodb_max_purge_lag_delay | 0 | | innodb_max_undo_log_size | 1073741824 | | innodb_monitor_disable | | | innodb_monitor_enable | | | innodb_monitor_reset | | | innodb_monitor_reset_all | | | innodb_old_blocks_pct | 37 | | innodb_old_blocks_time | 1000 | | innodb_online_alter_log_max_size | 134217728 | | innodb_open_files | 2000 | | innodb_optimize_fulltext_only | OFF | | innodb_page_cleaners | 1 | | innodb_page_size | 16384 | | innodb_print_all_deadlocks | OFF | | innodb_purge_batch_size | 300 | | innodb_purge_rseg_truncate_frequency | 128 | | innodb_purge_threads | 4 | | innodb_random_read_ahead | OFF | | innodb_read_ahead_threshold | 56 | | innodb_read_io_threads | 4 | | innodb_read_only | OFF | | innodb_replication_delay | 0 | | innodb_rollback_on_timeout | OFF | | innodb_rollback_segments | 128 | | innodb_sort_buffer_size | 1048576 | | innodb_spin_wait_delay | 6 | | innodb_stats_auto_recalc | ON | | innodb_stats_include_delete_marked | OFF | | innodb_stats_method | nulls_equal | | innodb_stats_on_metadata | OFF | | innodb_stats_persistent | ON | | innodb_stats_persistent_sample_pages | 20 | | innodb_stats_sample_pages | 8 | | innodb_stats_transient_sample_pages | 8 | | innodb_status_output | OFF | | innodb_status_output_locks | OFF | | innodb_strict_mode | ON | | innodb_support_xa | ON | | innodb_sync_array_size | 1 | | innodb_sync_spin_loops | 30 | | innodb_table_locks | ON | | innodb_temp_data_file_path | ibtmp1:12M:autoextend | | innodb_thread_concurrency | 0 | | innodb_thread_sleep_delay | 10000 | | innodb_tmpdir | | | innodb_undo_directory | .\ | | innodb_undo_log_truncate | OFF | | innodb_undo_logs | 128 | | innodb_undo_tablespaces | 0 | | innodb_use_native_aio | ON | | innodb_version | 5.7.25 | | innodb_write_io_threads | 4 | | insert_id | 0 | | interactive_timeout | 28800 | | internal_tmp_disk_storage_engine | InnoDB | | join_buffer_size | 262144 | | keep_files_on_create | OFF | | key_buffer_size | 8388608 | | key_cache_age_threshold | 300 | | key_cache_block_size | 1024 | | key_cache_division_limit | 100 | | keyring_operations | ON | | large_files_support | ON | | large_page_size | 0 | | large_pages | OFF | | last_insert_id | 0 | | lc_messages | en_US | | lc_messages_dir | C:\Users\Doob\MySQL\share\ | | lc_time_names | en_US | | license | GPL | | local_infile | ON | | lock_wait_timeout | 31536000 | | log_bin | OFF | | log_bin_basename | | | log_bin_index | | | log_bin_trust_function_creators | OFF | | log_bin_use_v1_row_events | OFF | | log_builtin_as_identified_by_password | OFF | | log_error | C:\Users\Doob\MySQL\data\Doob-ZooPC.err | | log_error_verbosity | 3 | | log_output | FILE | | log_queries_not_using_indexes | OFF | | log_slave_updates | OFF | | log_slow_admin_statements | OFF | | log_slow_slave_statements | OFF | | log_statements_unsafe_for_binlog | ON | | log_syslog | ON | | log_syslog_tag | | | log_throttle_queries_not_using_indexes | 0 | | log_timestamps | UTC | | log_warnings | 2 | | long_query_time | 10.000000 | | low_priority_updates | OFF | | lower_case_file_system | ON | | lower_case_table_names | 1 | | master_info_repository | FILE | | master_verify_checksum | OFF | | max_allowed_packet | 4194304 | | max_binlog_cache_size | 18446744073709547520 | | max_binlog_size | 1073741824 | | max_binlog_stmt_cache_size | 18446744073709547520 | | max_connect_errors | 100 | | max_connections | 151 | | max_delayed_threads | 20 | | max_digest_length | 1024 | | max_error_count | 64 | | max_execution_time | 0 | | max_heap_table_size | 16777216 | | max_insert_delayed_threads | 20 | | max_join_size | 18446744073709551615 | | max_length_for_sort_data | 1024 | | max_points_in_geometry | 65536 | | max_prepared_stmt_count | 16382 | | max_relay_log_size | 0 | | max_seeks_for_key | 4294967295 | | max_sort_length | 1024 | | max_sp_recursion_depth | 0 | | max_tmp_tables | 32 | | max_user_connections | 0 | | max_write_lock_count | 4294967295 | | metadata_locks_cache_size | 1024 | | metadata_locks_hash_instances | 8 | | min_examined_row_limit | 0 | | multi_range_count | 256 | | myisam_data_pointer_size | 6 | | myisam_max_sort_file_size | 2146435072 | | myisam_mmap_size | 18446744073709551615 | | myisam_recover_options | OFF | | myisam_repair_threads | 1 | | myisam_sort_buffer_size | 8388608 | | myisam_stats_method | nulls_unequal | | myisam_use_mmap | OFF | | mysql_native_password_proxy_users | OFF | | named_pipe | OFF | | named_pipe_full_access_group | *everyone* | | net_buffer_length | 16384 | | net_read_timeout | 30 | | net_retry_count | 10 | | net_write_timeout | 60 | | new | OFF | | ngram_token_size | 2 | | offline_mode | OFF | | old | OFF | | old_alter_table | OFF | | old_passwords | 0 | | open_files_limit | 7048 | | optimizer_prune_level | 1 | | optimizer_search_depth | 62 | | optimizer_switch | index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,engine_condition_pushdown=on,index_condition_pushdown=on,mrr=on,mrr_cost_based=on,block_nested_loop=on,batched_key_access=off,materialization=on,semijoin=on,loosescan=on,firstmatch=on,duplicateweedout=on,subquery_materialization_cost_based=on,use_index_extensions=on,condition_fanout_filter=on,derived_merge=on | | optimizer_trace | enabled=off,one_line=off | | optimizer_trace_features | greedy_search=on,range_optimizer=on,dynamic_range=on,repeated_subselect=on | | optimizer_trace_limit | 1 | | optimizer_trace_max_mem_size | 16384 | | optimizer_trace_offset | -1 | | parser_max_mem_size | 18446744073709551615 | | performance_schema | ON | | performance_schema_accounts_size | -1 | | performance_schema_digests_size | 10000 | | performance_schema_events_stages_history_long_size | 10000 | | performance_schema_events_stages_history_size | 10 | | performance_schema_events_statements_history_long_size | 10000 | | performance_schema_events_statements_history_size | 10 | | performance_schema_events_transactions_history_long_size | 10000 | | performance_schema_events_transactions_history_size | 10 | | performance_schema_events_waits_history_long_size | 10000 | | performance_schema_events_waits_history_size | 10 | | performance_schema_hosts_size | -1 | | performance_schema_max_cond_classes | 80 | | performance_schema_max_cond_instances | -1 | | performance_schema_max_digest_length | 1024 | | performance_schema_max_file_classes | 80 | | performance_schema_max_file_handles | 32768 | | performance_schema_max_file_instances | -1 | | performance_schema_max_index_stat | -1 | | performance_schema_max_memory_classes | 320 | | performance_schema_max_metadata_locks | -1 | | performance_schema_max_mutex_classes | 210 | | performance_schema_max_mutex_instances | -1 | | performance_schema_max_prepared_statements_instances | -1 | | performance_schema_max_program_instances | -1 | | performance_schema_max_rwlock_classes | 50 | | performance_schema_max_rwlock_instances | -1 | | performance_schema_max_socket_classes | 10 | | performance_schema_max_socket_instances | -1 | | performance_schema_max_sql_text_length | 1024 | | performance_schema_max_stage_classes | 150 | | performance_schema_max_statement_classes | 193 | | performance_schema_max_statement_stack | 10 | | performance_schema_max_table_handles | -1 | | performance_schema_max_table_instances | -1 | | performance_schema_max_table_lock_stat | -1 | | performance_schema_max_thread_classes | 50 | | performance_schema_max_thread_instances | -1 | | performance_schema_session_connect_attrs_size | 512 | | performance_schema_setup_actors_size | -1 | | performance_schema_setup_objects_size | -1 | | performance_schema_users_size | -1 | | pid_file | C:\Users\Doob\MySQL\data\Doob-ZooPC.pid | | plugin_dir | C:\Users\Doob\MySQL\lib\plugin\ | | port | 3306 | | preload_buffer_size | 32768 | | profiling | OFF | | profiling_history_size | 15 | | protocol_version | 10 | | proxy_user | | | pseudo_slave_mode | OFF | | pseudo_thread_id | 2 | | query_alloc_block_size | 8192 | | query_cache_limit | 1048576 | | query_cache_min_res_unit | 4096 | | query_cache_size | 1048576 | | query_cache_type | OFF | | query_cache_wlock_invalidate | OFF | | query_prealloc_size | 8192 | | rand_seed1 | 0 | | rand_seed2 | 0 | | range_alloc_block_size | 4096 | | range_optimizer_max_mem_size | 8388608 | | rbr_exec_mode | STRICT | | read_buffer_size | 131072 | | read_only | OFF | | read_rnd_buffer_size | 262144 | | relay_log | | | relay_log_basename | C:\Users\Doob\MySQL\data\Doob-ZooPC-relay-bin | | relay_log_index | C:\Users\Doob\MySQL\data\Doob-ZooPC-relay-bin.index | | relay_log_info_file | relay-log.info | | relay_log_info_repository | FILE | | relay_log_purge | ON | | relay_log_recovery | OFF | | relay_log_space_limit | 0 | | report_host | | | report_password | | | report_port | 3306 | | report_user | | | require_secure_transport | OFF | | rpl_stop_slave_timeout | 31536000 | | secure_auth | ON | | secure_file_priv | NULL | | server_id | 0 | | server_id_bits | 32 | | server_uuid | b07d713c-434a-11e9-ae1e-001583eb256c | | session_track_gtids | OFF | | session_track_schema | ON | | session_track_state_change | OFF | | session_track_system_variables | time_zone,autocommit,character_set_client,character_set_results,character_set_connection | | session_track_transaction_info | OFF | | sha256_password_proxy_users | OFF | | shared_memory | OFF | | shared_memory_base_name | MYSQL | | show_compatibility_56 | OFF | | show_create_table_verbosity | OFF | | show_old_temporals | OFF | | skip_external_locking | ON | | skip_name_resolve | OFF | | skip_networking | OFF | | skip_show_database | OFF | | slave_allow_batching | OFF | | slave_checkpoint_group | 512 | | slave_checkpoint_period | 300 | | slave_compressed_protocol | OFF | | slave_exec_mode | STRICT | | slave_load_tmpdir | C:\Windows\TEMP | | slave_max_allowed_packet | 1073741824 | | slave_net_timeout | 60 | | slave_parallel_type | DATABASE | | slave_parallel_workers | 0 | | slave_pending_jobs_size_max | 16777216 | | slave_preserve_commit_order | OFF | | slave_rows_search_algorithms | TABLE_SCAN,INDEX_SCAN | | slave_skip_errors | OFF | | slave_sql_verify_checksum | ON | | slave_transaction_retries | 10 | | slave_type_conversions | | | slow_launch_time | 2 | | slow_query_log | OFF | | slow_query_log_file | C:\Users\Doob\MySQL\data\Doob-ZooPC-slow.log | | socket | MySQL | | sort_buffer_size | 262144 | | sql_auto_is_null | OFF | | sql_big_selects | ON | | sql_buffer_result | OFF | | sql_log_bin | ON | | sql_log_off | OFF | | sql_mode | ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION | | sql_notes | ON | | sql_quote_show_create | ON | | sql_safe_updates | OFF | | sql_select_limit | 18446744073709551615 | | sql_slave_skip_counter | 0 | | sql_warnings | OFF | | ssl_ca | | | ssl_capath | | | ssl_cert | | | ssl_cipher | | | ssl_crl | | | ssl_crlpath | | | ssl_key | | | stored_program_cache | 256 | | super_read_only | OFF | | sync_binlog | 1 | | sync_frm | ON | | sync_master_info | 10000 | | sync_relay_log | 10000 | | sync_relay_log_info | 10000 | | system_time_zone | GMT Standard Time | | table_definition_cache | 1400 | | table_open_cache | 2000 | | table_open_cache_instances | 16 | | thread_cache_size | 9 | | thread_handling | one-thread-per-connection | | thread_stack | 262144 | | time_format | %H:%i:%s | | time_zone | SYSTEM | | timestamp | 1552233635.087952 | | tls_version | TLSv1,TLSv1.1 | | tmp_table_size | 16777216 | | tmpdir | C:\Windows\TEMP | | transaction_alloc_block_size | 8192 | | transaction_allow_batching | OFF | | transaction_isolation | REPEATABLE-READ | | transaction_prealloc_size | 4096 | | transaction_read_only | OFF | | transaction_write_set_extraction | OFF | | tx_isolation | REPEATABLE-READ | | tx_read_only | OFF | | unique_checks | ON | | updatable_views_with_limit | YES | | version | 5.7.25 | | version_comment | MySQL Community Server (GPL) | | version_compile_machine | x86_64 | | version_compile_os | Win64 | | wait_timeout | 28800 | | warning_count | 0 |