mysql_global_status_qcache_insert

mysql_global_status_qcache_insert是MySQL的全局状态变量之一，用于记录查询缓存中插入查询语句的次数。查询缓存是MySQL中一种用于缓存查询结果的机制，可以提高查询性能。当查询语句被缓存后，再次执行相同的查询语句时，MySQL可以直接返回缓存中的结果，而无需重新执行查询。因此，查询缓存的使用可以极大地提高查询性能。mysql_global_status_qcache_insert可以用来监控查询缓存的使用情况，以便优化MySQL的性能。

相关问题

Qcache_not_cached

Qcache_not_cached表示在查询缓存中找不到的查询次数。根据引用和引用的数据，Qcache_not_cached的值分别为0和2654。这意味着在查询缓存中找不到的查询次数为0或2654次。查询缓存是MySQL中的一个功能，它可以缓存查询的结果，当相同的查询再次执行时，可以直接从缓存中获取结果，从而提高查询的速度。然而，并非所有的查询都适合被缓存，一些查询可能会被MySQL判断为不适合缓存，从而导致Qcache_not_cached的增加。这些不适合被缓存的查询可能包括使用了不可缓存的函数、临时表或者不稳定的查询等。因此，Qcache_not_cached的增加可能意味着一些查询无法被缓存，可能需要对查询进行优化或者调整查询缓存的设置。<em>1</em><em>2</em><em>3</em>
#### 引用[.reference_title]
- *1* [MySQL优化之缓存优化](https://blog.csdn.net/weixin_42165980/article/details/113557558)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}} ] [.reference_item]
- *2* *3* [MySQL查询高速缓冲](https://blog.csdn.net/weixin_30477293/article/details/96263389)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}} ] [.reference_item]
[ .reference_list ]

mysqld_exporter监控指标列表

MySQL Exporter 是一个监控 MySQL 数据库的工具，可以将 MySQL 的监控指标暴露为 Prometheus 可以抓取的格式。以下是 MySQL Exporter 可以监控的指标列表：

- mysql_active_threads
- mysql_bytes_received
- mysql_bytes_sent
- mysql_commands_total
- mysql_connections_aborted
- mysql_connections_total
- mysql_created_tmp_disk_tables
- mysql_created_tmp_files
- mysql_created_tmp_tables
- mysql_flush_commands
- mysql_innodb_active_transactions
- mysql_innodb_buffer_pool_bytes_data
- mysql_innodb_buffer_pool_bytes_dirty
- mysql_innodb_buffer_pool_pages_data
- mysql_innodb_buffer_pool_pages_dirty
- mysql_innodb_buffer_pool_pages_flushed
- mysql_innodb_buffer_pool_pages_free
- mysql_innodb_buffer_pool_pages_misc
- mysql_innodb_buffer_pool_pages_total
- mysql_innodb_buffer_pool_read_ahead
- mysql_innodb_buffer_pool_read_ahead_evicted
- mysql_innodb_buffer_pool_read_requests
- mysql_innodb_buffer_pool_reads
- mysql_innodb_buffer_pool_wait_free
- mysql_innodb_buffer_pool_write_requests
- mysql_innodb_checkpoint_age
- mysql_innodb_current_row_locks
- mysql_innodb_data_fsyncs
- mysql_innodb_data_pending_fsyncs
- mysql_innodb_data_pending_reads
- mysql_innodb_data_pending_writes
- mysql_innodb_data_read
- mysql_innodb_data_reads
- mysql_innodb_data_written
- mysql_innodb_dblwr_pages_written
- mysql_innodb_dblwr_writes
- mysql_innodb_deadlocks
- mysql_innodb_history_list_length
- mysql_innodb_ibuf_free_list
- mysql_innodb_ibuf_merged
- mysql_innodb_ibuf_merges
- mysql_innodb_ibuf_size
- mysql_innodb_log_waits
- mysql_innodb_log_write_requests
- mysql_innodb_log_writes
- mysql_innodb_lsn_current
- mysql_innodb_lsn_flushed
- mysql_innodb_lsn_last_checkpoint
- mysql_innodb_mem_adaptive_hash
- mysql_innodb_mem_dictionary
- mysql_innodb_mem_total
- mysql_innodb_mutex_os_waits
- mysql_innodb_mutex_spin_rounds
- mysql_innodb_mutex_spin_waits
- mysql_innodb_num_open_files
- mysql_innodb_num_open_files_hist
- mysql_innodb_os_log_fsyncs
- mysql_innodb_os_log_pending_fsyncs
- mysql_innodb_os_log_pending_writes
- mysql_innodb_os_log_written
- mysql_innodb_pages_created
- mysql_innodb_pages_read
- mysql_innodb_pages_written
- mysql_innodb_pending_aio_log_ios
- mysql_innodb_pending_aio_sync_ios
- mysql_innodb_pending_buffer_pool_flushes
- mysql_innodb_pending_checkpoint_writes
- mysql_innodb_pending_ibuf_aio_reads
- mysql_innodb_pending_log_flushes
- mysql_innodb_pending_log_writes
- mysql_innodb_pending_normal_aio_reads
- mysql_innodb_pending_normal_aio_writes
- mysql_innodb_queries_inside
- mysql_innodb_queries_queued
- mysql_innodb_read_views
- mysql_innodb_rows_deleted
- mysql_innodb_rows_inserted
- mysql_innodb_rows_read
- mysql_innodb_rows_updated
- mysql_innodb_s_lock_os_waits
- mysql_innodb_s_lock_spin_rounds
- mysql_innodb_s_lock_spin_waits
- mysql_innodb_sem_waits
- mysql_innodb_sem_wait_time_ms
- mysql_innodb_tables_in_use
- mysql_innodb_x_lock_os_waits
- mysql_innodb_x_lock_spin_rounds
- mysql_innodb_x_lock_spin_waits
- mysql_max_used_connections
- mysql_open_files
- mysql_open_streams
- mysql_open_tables
- mysql_opened_tables
- mysql_prepared_stmt_count
- mysql_qcache_free_blocks
- mysql_qcache_free_memory
- mysql_qcache_hits
- mysql_qcache_inserts
- mysql_qcache_lowmem_prunes
- mysql_qcache_not_cached
- mysql_qcache_queries_in_cache
- mysql_qcache_total_blocks
- mysql_queries
- mysql_questions
- mysql_select_full_join
- mysql_select_full_range_join
- mysql_select_range
- mysql_select_range_check
- mysql_select_scan
- mysql_slave_lag_seconds
- mysql_slow_queries
- mysql_sort_merge_passes
- mysql_sort_range
- mysql_sort_rows
- mysql_sort_scan
- mysql_table_locks_immediate
- mysql_table_locks_waited
- mysql_table_open_cache_hits
- mysql_table_open_cache_misses
- mysql_table_open_cache_overflows
- mysql_threadpool_idle_threads
- mysql_threadpool_threads
- mysql_threads_cached
- mysql_threads_connected
- mysql_threads_created
- mysql_threads_running

上述指标可以帮助你监控 MySQL 数据库的性能和状态，例如连接数、查询数、缓存命中率、锁等待情况、InnoDB 的缓存和 IO 操作等。