MySQL显示状态信息
1、show status
mysql> show status; +-----------------------------------+----------+ | Variable_name | Value | +-----------------------------------+----------+ | Aborted_clients | 0 | | Aborted_connects | 0 | | Binlog_cache_disk_use | 0 | | Binlog_cache_use | 0 | | Bytes_received | 115 | | Bytes_sent | 180 | | Com_admin_commands | 0 | | Com_alter_db | 0 | | Com_alter_table | 0 | | Com_analyze | 0 | | Com_backup_table | 0 | | Com_begin | 0 | | Com_call_procedure | 0 | | Com_change_db | 0 | | Com_change_master | 0 | | Com_check | 0 | | Com_checksum | 0 | | Com_commit | 0 | | Com_create_db | 0 | | Com_create_function | 0 | | Com_create_index | 0 | | Com_create_table | 0 | | Com_create_user | 0 | | Com_dealloc_sql | 0 | | Com_delete | 0 | | Com_delete_multi | 0 | | Com_do | 0 | | Com_drop_db | 0 | | Com_drop_function | 0 | | Com_drop_index | 0 | | Com_drop_table | 0 | | Com_drop_user | 0 | | Com_execute_sql | 0 | | Com_flush | 0 | | Com_grant | 0 | | Com_ha_close | 0 | | Com_ha_open | 0 | | Com_ha_read | 0 | | Com_help | 0 | | Com_insert | 0 | | Com_insert_select | 0 | | Com_kill | 0 | | Com_load | 0 | | Com_load_master_data | 0 | | Com_load_master_table | 0 | | Com_lock_tables | 0 | | Com_optimize | 0 | | Com_preload_keys | 0 | | Com_prepare_sql | 0 | | Com_purge | 0 | | Com_purge_before_date | 0 | | Com_rename_table | 0 | | Com_repair | 0 | | Com_replace | 0 | | Com_replace_select | 0 | | Com_reset | 0 | | Com_restore_table | 0 | | Com_revoke | 0 | | Com_revoke_all | 0 | | Com_rollback | 0 | | Com_savepoint | 0 | | Com_select | 1 | | Com_set_option | 0 | | Com_show_binlog_events | 0 | | Com_show_binlogs | 0 | | Com_show_charsets | 0 | | Com_show_collations | 0 | | Com_show_column_types | 0 | | Com_show_create_db | 0 | | Com_show_create_table | 0 | | Com_show_databases | 0 | | Com_show_errors | 0 | | Com_show_fields | 0 | | Com_show_grants | 0 | | Com_show_innodb_status | 0 | | Com_show_keys | 0 | | Com_show_logs | 0 | | Com_show_master_status | 0 | | Com_show_ndb_status | 0 | | Com_show_new_master | 0 | | Com_show_open_tables | 0 | | Com_show_privileges | 0 | | Com_show_processlist | 0 | | Com_show_slave_hosts | 0 | | Com_show_slave_status | 0 | | Com_show_status | 1 | | Com_show_storage_engines | 0 | | Com_show_tables | 0 | | Com_show_triggers | 0 | | Com_show_variables | 0 | | Com_show_warnings | 0 | | Com_slave_start | 0 | | Com_slave_stop | 0 | | Com_stmt_close | 0 | | Com_stmt_execute | 0 | | Com_stmt_fetch | 0 | | Com_stmt_prepare | 0 | | Com_stmt_reset | 0 | | Com_stmt_send_long_data | 0 | | Com_truncate | 0 | | Com_unlock_tables | 0 | | Com_update | 0 | | Com_update_multi | 0 | | Com_xa_commit | 0 | | Com_xa_end | 0 | | Com_xa_prepare | 0 | | Com_xa_recover | 0 | | Com_xa_rollback | 0 | | Com_xa_start | 0 | | Compression | OFF | | Connections | 2 | | Created_tmp_disk_tables | 0 | | Created_tmp_files | 5 | | Created_tmp_tables | 1 | | Delayed_errors | 0 | | Delayed_insert_threads | 0 | | Delayed_writes | 0 | | Flush_commands | 1 | | Handler_commit | 0 | | Handler_delete | 0 | | Handler_discover | 0 | | Handler_prepare | 0 | | Handler_read_first | 0 | | Handler_read_key | 0 | | Handler_read_next | 0 | | Handler_read_prev | 0 | | Handler_read_rnd | 0 | | Handler_read_rnd_next | 0 | | Handler_rollback | 0 | | Handler_savepoint | 0 | | Handler_savepoint_rollback | 0 | | Handler_update | 0 | | Handler_write | 132 | | Innodb_buffer_pool_pages_data | 67 | | Innodb_buffer_pool_pages_dirty | 0 | | Innodb_buffer_pool_pages_flushed | 0 | | Innodb_buffer_pool_pages_free | 2493 | | Innodb_buffer_pool_pages_misc | 0 | | Innodb_buffer_pool_pages_total | 2560 | | Innodb_buffer_pool_read_ahead_rnd | 1 | | Innodb_buffer_pool_read_ahead_seq | 0 | | Innodb_buffer_pool_read_requests | 635 | | Innodb_buffer_pool_reads | 16 | | Innodb_buffer_pool_wait_free | 0 | | Innodb_buffer_pool_write_requests | 0 | | Innodb_data_fsyncs | 3 | | Innodb_data_pending_fsyncs | 0 | | Innodb_data_pending_reads | 0 | | Innodb_data_pending_writes | 0 | | Innodb_data_read | 3280896 | | Innodb_data_reads | 77 | | Innodb_data_writes | 3 | | Innodb_data_written | 1536 | | Innodb_dblwr_pages_written | 0 | | Innodb_dblwr_writes | 0 | | Innodb_log_waits | 0 | | Innodb_log_write_requests | 0 | | Innodb_log_writes | 1 | | Innodb_os_log_fsyncs | 3 | | Innodb_os_log_pending_fsyncs | 0 | | Innodb_os_log_pending_writes | 0 | | Innodb_os_log_written | 512 | | Innodb_page_size | 16384 | | Innodb_pages_created | 0 | | Innodb_pages_read | 67 | | Innodb_pages_written | 0 | | Innodb_row_lock_current_waits | 0 | | Innodb_row_lock_time | 0 | | Innodb_row_lock_time_avg | 0 | | Innodb_row_lock_time_max | 0 | | Innodb_row_lock_waits | 0 | | Innodb_rows_deleted | 0 | | Innodb_rows_inserted | 0 | | Innodb_rows_read | 0 | | Innodb_rows_updated | 0 | | Key_blocks_not_flushed | 0 | | Key_blocks_unused | 19772 | | Key_blocks_used | 0 | | Key_read_requests | 0 | | Key_reads | 0 | | Key_write_requests | 0 | | Key_writes | 0 | | Last_query_cost | 0.000000 | | Max_used_connections | 1 | | Not_flushed_delayed_rows | 0 | | Open_files | 12 | | Open_streams | 0 | | Open_tables | 6 | | Opened_tables | 0 | | Prepared_stmt_count | 0 | | Qcache_free_blocks | 0 | | Qcache_free_memory | 0 | | Qcache_hits | 0 | | Qcache_inserts | 0 | | Qcache_lowmem_prunes | 0 | | Qcache_not_cached | 0 | | Qcache_queries_in_cache | 0 | | Qcache_total_blocks | 0 | | Queries | 2 | | Questions | 2 | | Rpl_status | NULL | | Select_full_join | 0 | | Select_full_range_join | 0 | | Select_range | 0 | | Select_range_check | 0 | | Select_scan | 1 | | Slave_open_temp_tables | 0 | | Slave_retried_transactions | 0 | | Slave_running | OFF | | Slow_launch_threads | 0 | | Slow_queries | 0 | | Sort_merge_passes | 0 | | Sort_range | 0 | | Sort_rows | 0 | | Sort_scan | 0 | | Ssl_accept_renegotiates | 0 | | Ssl_accepts | 0 | | Ssl_callback_cache_hits | 0 | | Ssl_cipher | | | Ssl_cipher_list | | | Ssl_client_connects | 0 | | Ssl_connect_renegotiates | 0 | | Ssl_ctx_verify_depth | 0 | | Ssl_ctx_verify_mode | 0 | | Ssl_default_timeout | 0 | | Ssl_finished_accepts | 0 | | Ssl_finished_connects | 0 | | Ssl_session_cache_hits | 0 | | Ssl_session_cache_misses | 0 | | Ssl_session_cache_mode | NONE | | Ssl_session_cache_overflows | 0 | | Ssl_session_cache_size | 0 | | Ssl_session_cache_timeouts | 0 | | Ssl_sessions_reused | 0 | | Ssl_used_session_cache_entries | 0 | | Ssl_verify_depth | 0 | | Ssl_verify_mode | 0 | | Ssl_version | | | Table_locks_immediate | 12 | | Table_locks_waited | 0 | | Tc_log_max_pages_used | 0 | | Tc_log_page_size | 0 | | Tc_log_page_waits | 0 | | Threads_cached | 0 | | Threads_connected | 1 | | Threads_created | 1 | | Threads_running | 1 | | Uptime | 181 | | Uptime_since_flush_status | 181 | +-----------------------------------+----------+ 249 rows in set (0.02 sec)