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MySQL 5.6 Reference Manual  /  ...  /  Server Status Variable Reference

5.1.5 Server Status Variable Reference

The following table lists all status variables applicable within mysqld.

The table lists each variable's data type and scope. The last column indicates whether the scope for each variable is Global, Session, or both. Please see the corresponding item descriptions for details on setting and using the variables. Where appropriate, direct links to further information about the items are provided.

Table 5.4 Status Variable Summary

Variable Name Variable Type Variable Scope
Aborted_clients Integer Global
Aborted_connects Integer Global
Audit_log_current_size Integer Global
Audit_log_event_max_drop_size Integer Global
Audit_log_events Integer Global
Audit_log_events_filtered Integer Global
Audit_log_events_lost Integer Global
Audit_log_events_written Integer Global
Audit_log_total_size Integer Global
Audit_log_write_waits Integer Global
Binlog_cache_disk_use Integer Global
Binlog_cache_use Integer Global
Binlog_stmt_cache_disk_use Integer Global
Binlog_stmt_cache_use Integer Global
Bytes_received Integer Both
Bytes_sent Integer Both
Com_admin_commands Integer Both
Com_alter_db Integer Both
Com_alter_db_upgrade Integer Both
Com_alter_event Integer Both
Com_alter_function Integer Both
Com_alter_procedure Integer Both
Com_alter_server Integer Both
Com_alter_table Integer Both
Com_alter_tablespace Integer Both
Com_alter_user Integer Both
Com_analyze Integer Both
Com_assign_to_keycache Integer Both
Com_begin Integer Both
Com_binlog Integer Both
Com_call_procedure Integer Both
Com_change_db Integer Both
Com_change_master Integer Both
Com_check Integer Both
Com_checksum Integer Both
Com_commit Integer Both
Com_create_db Integer Both
Com_create_event Integer Both
Com_create_function Integer Both
Com_create_index Integer Both
Com_create_procedure Integer Both
Com_create_server Integer Both
Com_create_table Integer Both
Com_create_trigger Integer Both
Com_create_udf Integer Both
Com_create_user Integer Both
Com_create_view Integer Both
Com_dealloc_sql Integer Both
Com_delete Integer Both
Com_delete_multi Integer Both
Com_do Integer Both
Com_drop_db Integer Both
Com_drop_event Integer Both
Com_drop_function Integer Both
Com_drop_index Integer Both
Com_drop_procedure Integer Both
Com_drop_server Integer Both
Com_drop_table Integer Both
Com_drop_trigger Integer Both
Com_drop_user Integer Both
Com_drop_view Integer Both
Com_empty_query Integer Both
Com_execute_sql Integer Both
Com_flush Integer Both
Com_get_diagnostics Integer Both
Com_grant Integer Both
Com_ha_close Integer Both
Com_ha_open Integer Both
Com_ha_read Integer Both
Com_help Integer Both
Com_insert Integer Both
Com_insert_select Integer Both
Com_install_plugin Integer Both
Com_kill Integer Both
Com_load Integer Both
Com_lock_tables Integer Both
Com_optimize Integer Both
Com_preload_keys Integer Both
Com_prepare_sql Integer Both
Com_purge Integer Both
Com_purge_before_date Integer Both
Com_release_savepoint Integer Both
Com_rename_table Integer Both
Com_rename_user Integer Both
Com_repair Integer Both
Com_replace Integer Both
Com_replace_select Integer Both
Com_reset Integer Both
Com_resignal Integer Both
Com_revoke Integer Both
Com_revoke_all Integer Both
Com_rollback Integer Both
Com_rollback_to_savepoint Integer Both
Com_savepoint Integer Both
Com_select Integer Both
Com_set_option Integer Both
Com_show_authors Integer Both
Com_show_binlog_events Integer Both
Com_show_binlogs Integer Both
Com_show_charsets Integer Both
Com_show_collations Integer Both
Com_show_contributors Integer Both
Com_show_create_db Integer Both
Com_show_create_event Integer Both
Com_show_create_func Integer Both
Com_show_create_proc Integer Both
Com_show_create_table Integer Both
Com_show_create_trigger Integer Both
Com_show_databases Integer Both
Com_show_engine_logs Integer Both
Com_show_engine_mutex Integer Both
Com_show_engine_status Integer Both
Com_show_errors Integer Both
Com_show_events Integer Both
Com_show_fields Integer Both
Com_show_function_code Integer Both
Com_show_function_status Integer Both
Com_show_grants Integer Both
Com_show_keys Integer Both
Com_show_master_status Integer Both
Com_show_ndb_status Integer Both
Com_show_new_master Integer Both
Com_show_open_tables Integer Both
Com_show_plugins Integer Both
Com_show_privileges Integer Both
Com_show_procedure_code Integer Both
Com_show_procedure_status Integer Both
Com_show_processlist Integer Both
Com_show_profile Integer Both
Com_show_profiles Integer Both
Com_show_relaylog_events Integer Both
Com_show_slave_hosts Integer Both
Com_show_slave_status Integer Both
Com_show_status Integer Both
Com_show_storage_engines Integer Both
Com_show_table_status Integer Both
Com_show_tables Integer Both
Com_show_triggers Integer Both
Com_show_variables Integer Both
Com_show_warnings Integer Both
Com_signal Integer Both
Com_slave_start Integer Both
Com_slave_stop Integer Both
Com_stmt_close Integer Both
Com_stmt_execute Integer Both
Com_stmt_fetch Integer Both
Com_stmt_prepare Integer Both
Com_stmt_reprepare Integer Both
Com_stmt_reset Integer Both
Com_stmt_send_long_data Integer Both
Com_truncate Integer Both
Com_uninstall_plugin Integer Both
Com_unlock_tables Integer Both
Com_update Integer Both
Com_update_multi Integer Both
Com_xa_commit Integer Both
Com_xa_end Integer Both
Com_xa_prepare Integer Both
Com_xa_recover Integer Both
Com_xa_rollback Integer Both
Com_xa_start Integer Both
Compression Integer Session
Connection_control_delay_generated Integer Global
Connection_errors_accept Integer Global
Connection_errors_internal Integer Global
Connection_errors_max_connections Integer Global
Connection_errors_peer_address Integer Global
Connection_errors_select Integer Global
Connection_errors_tcpwrap Integer Global
Connections Integer Global
Created_tmp_disk_tables Integer Both
Created_tmp_files Integer Global
Created_tmp_tables Integer Both
Delayed_errors Integer Global
Delayed_insert_threads Integer Global
Delayed_writes Integer Global
Firewall_access_denied Integer Global
Firewall_access_granted Integer Global
Firewall_cached_entries Integer Global
Flush_commands Integer Global
Handler_commit Integer Both
Handler_delete Integer Both
Handler_discover Integer Both
Handler_external_lock Integer Both
Handler_mrr_init Integer Both
Handler_prepare Integer Both
Handler_read_first Integer Both
Handler_read_key Integer Both
Handler_read_last Integer Both
Handler_read_next Integer Both
Handler_read_prev Integer Both
Handler_read_rnd Integer Both
Handler_read_rnd_next Integer Both
Handler_rollback Integer Both
Handler_savepoint Integer Both
Handler_savepoint_rollback Integer Both
Handler_update Integer Both
Handler_write Integer Both
Innodb_available_undo_logs Integer Global
Innodb_buffer_pool_bytes_data Integer Global
Innodb_buffer_pool_bytes_dirty Integer Global
Innodb_buffer_pool_dump_status String Global
Innodb_buffer_pool_load_status String Global
Innodb_buffer_pool_pages_data Integer Global
Innodb_buffer_pool_pages_dirty Integer Global
Innodb_buffer_pool_pages_flushed Integer Global
Innodb_buffer_pool_pages_free Integer Global
Innodb_buffer_pool_pages_latched Integer Global
Innodb_buffer_pool_pages_misc Integer Global
Innodb_buffer_pool_pages_total Integer Global
Innodb_buffer_pool_read_ahead Integer Global
Innodb_buffer_pool_read_ahead_evicted Integer Global
Innodb_buffer_pool_read_ahead_rnd Integer Global
Innodb_buffer_pool_read_requests Integer Global
Innodb_buffer_pool_reads Integer Global
Innodb_buffer_pool_wait_free Integer Global
Innodb_buffer_pool_write_requests Integer Global
Innodb_data_fsyncs Integer Global
Innodb_data_pending_fsyncs Integer Global
Innodb_data_pending_reads Integer Global
Innodb_data_pending_writes Integer Global
Innodb_data_read Integer Global
Innodb_data_reads Integer Global
Innodb_data_writes Integer Global
Innodb_data_written Integer Global
Innodb_dblwr_pages_written Integer Global
Innodb_dblwr_writes Integer Global
Innodb_have_atomic_builtins Integer Global
Innodb_log_waits Integer Global
Innodb_log_write_requests Integer Global
Innodb_log_writes Integer Global
Innodb_num_open_files Integer Global
Innodb_os_log_fsyncs Integer Global
Innodb_os_log_pending_fsyncs Integer Global
Innodb_os_log_pending_writes Integer Global
Innodb_os_log_written Integer Global
Innodb_page_size Integer Global
Innodb_pages_created Integer Global
Innodb_pages_read Integer Global
Innodb_pages_written Integer Global
Innodb_row_lock_current_waits Integer Global
Innodb_row_lock_time Integer Global
Innodb_row_lock_time_avg Integer Global
Innodb_row_lock_time_max Integer Global
Innodb_row_lock_waits Integer Global
Innodb_rows_deleted Integer Global
Innodb_rows_inserted Integer Global
Innodb_rows_read Integer Global
Innodb_rows_updated Integer Global
Innodb_truncated_status_writes Integer Global
Key_blocks_not_flushed Integer Global
Key_blocks_unused Integer Global
Key_blocks_used Integer Global
Key_read_requests Integer Global
Key_reads Integer Global
Key_write_requests Integer Global
Key_writes Integer Global
Last_query_cost Numeric Session
Last_query_partial_plans Integer Session
Max_used_connections Integer Global
Ndb_api_bytes_received_count Integer Global
Ndb_api_bytes_received_count_session Integer Session
Ndb_api_bytes_received_count_slave Integer Global
Ndb_api_bytes_sent_count Integer Global
Ndb_api_bytes_sent_count_session Integer Session
Ndb_api_bytes_sent_count_slave Integer Global
Ndb_api_event_bytes_count Integer Global
Ndb_api_event_bytes_count_injector Integer Global
Ndb_api_event_data_count Integer Global
Ndb_api_event_data_count_injector Integer Global
Ndb_api_event_nondata_count Integer Global
Ndb_api_event_nondata_count_injector Integer Global
Ndb_api_pk_op_count Integer Global
Ndb_api_pk_op_count_session Integer Session
Ndb_api_pk_op_count_slave Integer Global
Ndb_api_pruned_scan_count Integer Global
Ndb_api_pruned_scan_count_session Integer Session
Ndb_api_pruned_scan_count_slave Integer Global
Ndb_api_range_scan_count Integer Global
Ndb_api_range_scan_count_session Integer Session
Ndb_api_range_scan_count_slave Integer Global
Ndb_api_read_row_count Integer Global
Ndb_api_read_row_count_session Integer Session
Ndb_api_read_row_count_slave Integer Global
Ndb_api_scan_batch_count Integer Global
Ndb_api_scan_batch_count_session Integer Session
Ndb_api_scan_batch_count_slave Integer Global
Ndb_api_table_scan_count Integer Global
Ndb_api_table_scan_count_session Integer Session
Ndb_api_table_scan_count_slave Integer Global
Ndb_api_trans_abort_count Integer Global
Ndb_api_trans_abort_count_session Integer Session
Ndb_api_trans_abort_count_slave Integer Global
Ndb_api_trans_close_count Integer Global
Ndb_api_trans_close_count_session Integer Session
Ndb_api_trans_close_count_slave Integer Global
Ndb_api_trans_commit_count Integer Global
Ndb_api_trans_commit_count_session Integer Session
Ndb_api_trans_commit_count_slave Integer Global
Ndb_api_trans_local_read_row_count Integer Global
Ndb_api_trans_local_read_row_count_session Integer Session
Ndb_api_trans_local_read_row_count_slave Integer Global
Ndb_api_trans_start_count Integer Global
Ndb_api_trans_start_count_session Integer Session
Ndb_api_trans_start_count_slave Integer Global
Ndb_api_uk_op_count Integer Global
Ndb_api_uk_op_count_session Integer Session
Ndb_api_uk_op_count_slave Integer Global
Ndb_api_wait_exec_complete_count Integer Global
Ndb_api_wait_exec_complete_count_session Integer Session
Ndb_api_wait_exec_complete_count_slave Integer Global
Ndb_api_wait_meta_request_count Integer Global
Ndb_api_wait_meta_request_count_session Integer Session
Ndb_api_wait_meta_request_count_slave Integer Global
Ndb_api_wait_nanos_count Integer Global
Ndb_api_wait_nanos_count_session Integer Session
Ndb_api_wait_nanos_count_slave Integer Global
Ndb_api_wait_scan_result_count Integer Global
Ndb_api_wait_scan_result_count_session Integer Session
Ndb_api_wait_scan_result_count_slave Integer Global
Ndb_cluster_node_id Integer Both
Ndb_config_from_host Integer Both
Ndb_config_from_port Integer Both
Ndb_conflict_fn_epoch Integer Global
Ndb_conflict_fn_epoch_trans Integer Global
Ndb_conflict_fn_epoch2 Integer Global
Ndb_conflict_fn_epoch2_trans Integer Global
Ndb_conflict_fn_max Integer Global
Ndb_conflict_fn_max_del_win Integer Global
Ndb_conflict_fn_old Integer Global
Ndb_conflict_last_stable_epoch Integer Global
Ndb_conflict_reflected_op_discard_count Integer Global
Ndb_conflict_reflected_op_prepare_count Integer Global
Ndb_conflict_refresh_op_count Integer Global
Ndb_conflict_trans_conflict_commit_count Integer Global
Ndb_conflict_trans_detect_iter_count Integer Global
Ndb_conflict_trans_reject_count Integer Global
Ndb_conflict_trans_row_conflict_count Integer Global
Ndb_conflict_trans_row_reject_count Integer Global
Ndb_epoch_delete_delete_count Integer Global
Ndb_execute_count Integer Global
Ndb_last_commit_epoch_server Integer Global
Ndb_last_commit_epoch_session Integer Session
Ndb_cluster_node_id Integer Global
Ndb_number_of_data_nodes Integer Global
Ndb_pruned_scan_count Integer Global
Ndb_pushed_queries_defined Integer Global
Ndb_pushed_queries_dropped Integer Global
Ndb_pushed_queries_executed Integer Global
Ndb_pushed_reads Integer Global
Ndb_scan_count Integer Global
Not_flushed_delayed_rows Integer Global
Open_files Integer Global
Open_streams Integer Global
Open_table_definitions Integer Global
Open_tables Integer Both
Opened_files Integer Global
Opened_table_definitions Integer Both
Opened_tables Integer Both
Performance_schema_accounts_lost Integer Global
Performance_schema_cond_classes_lost Integer Global
Performance_schema_cond_instances_lost Integer Global
Performance_schema_digest_lost Integer Global
Performance_schema_file_classes_lost Integer Global
Performance_schema_file_handles_lost Integer Global
Performance_schema_file_instances_lost Integer Global
Performance_schema_hosts_lost Integer Global
Performance_schema_locker_lost Integer Global
Performance_schema_mutex_classes_lost Integer Global
Performance_schema_mutex_instances_lost Integer Global
Performance_schema_rwlock_classes_lost Integer Global
Performance_schema_rwlock_instances_lost Integer Global
Performance_schema_session_connect_attrs_lost Integer Global
Performance_schema_socket_classes_lost Integer Global
Performance_schema_socket_instances_lost Integer Global
Performance_schema_stage_classes_lost Integer Global
Performance_schema_statement_classes_lost Integer Global
Performance_schema_table_handles_lost Integer Global
Performance_schema_table_instances_lost Integer Global
Performance_schema_thread_classes_lost Integer Global
Performance_schema_thread_instances_lost Integer Global
Performance_schema_users_lost Integer Global
Prepared_stmt_count Integer Global
Qcache_free_blocks Integer Global
Qcache_free_memory Integer Global
Qcache_hits Integer Global
Qcache_inserts Integer Global
Qcache_lowmem_prunes Integer Global
Qcache_not_cached Integer Global
Qcache_queries_in_cache Integer Global
Qcache_total_blocks Integer Global
Queries Integer Both
Questions Integer Both
Rpl_semi_sync_master_clients Integer Global
Rpl_semi_sync_master_net_avg_wait_time Integer Global
Rpl_semi_sync_master_net_wait_time Integer Global
Rpl_semi_sync_master_net_waits Integer Global
Rpl_semi_sync_master_no_times Integer Global
Rpl_semi_sync_master_no_tx Integer Global
Rpl_semi_sync_master_status Boolean Global
Rpl_semi_sync_master_timefunc_failures Integer Global
Rpl_semi_sync_master_tx_avg_wait_time Integer Global
Rpl_semi_sync_master_tx_wait_time Integer Global
Rpl_semi_sync_master_tx_waits Integer Global
Rpl_semi_sync_master_wait_pos_backtraverse Integer Global
Rpl_semi_sync_master_wait_sessions Integer Global
Rpl_semi_sync_master_yes_tx Integer Global
Rpl_semi_sync_slave_status Boolean Global
Rsa_public_key String Global
Select_full_join Integer Both
Select_full_range_join Integer Both
Select_range Integer Both
Select_range_check Integer Both
Select_scan Integer Both
Slave_heartbeat_period Numeric Global
Slave_last_heartbeat Datetime Global
Slave_open_temp_tables Integer Global
Slave_received_heartbeats Integer Global
Slave_retried_transactions Integer Global
Slave_rows_last_search_algorithm_used String Global
Slave_running Boolean Global
Slow_launch_threads Integer Both
Slow_queries Integer Both
Sort_merge_passes Integer Both
Sort_range Integer Both
Sort_rows Integer Both
Sort_scan Integer Both
Ssl_accept_renegotiates Integer Global
Ssl_accepts Integer Global
Ssl_callback_cache_hits Integer Global
Ssl_cipher String Both
Ssl_cipher_list String Both
Ssl_client_connects Integer Global
Ssl_connect_renegotiates Integer Global
Ssl_ctx_verify_depth Integer Global
Ssl_ctx_verify_mode Integer Global
Ssl_default_timeout Integer Both
Ssl_finished_accepts Integer Global
Ssl_finished_connects Integer Global
Ssl_server_not_after Integer Both
Ssl_server_not_before Integer Both
Ssl_session_cache_hits Integer Global
Ssl_session_cache_misses Integer Global
Ssl_session_cache_mode String Global
Ssl_session_cache_overflows Integer Global
Ssl_session_cache_size Integer Global
Ssl_session_cache_timeouts Integer Global
Ssl_sessions_reused Integer Both
Ssl_used_session_cache_entries Integer Global
Ssl_verify_depth Integer Both
Ssl_verify_mode Integer Both
Ssl_version String Both
Table_locks_immediate Integer Global
Table_locks_waited Integer Global
Table_open_cache_hits Integer Both
Table_open_cache_misses Integer Both
Table_open_cache_overflows Integer Both
Tc_log_max_pages_used Integer Global
Tc_log_page_size Integer Global
Tc_log_page_waits Integer Global
Threads_cached Integer Global
Threads_connected Integer Global
Threads_created Integer Global
Threads_running Integer Global
Uptime Integer Global
Uptime_since_flush_status Integer Global
validate_password_dictionary_file_last_parsed Datetime Global
validate_password_dictionary_file_words_count Integer Global


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