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看一下我的mysql占用cpu %100 [复制链接]

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CU大牛徽章
日期:2013-03-13 15:29:07

CU大牛徽章
日期:2013-03-13 15:29:49

CU大牛徽章
日期:2013-03-13 15:30:19

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发表于 2008-04-03 16:39 |只看该作者 |倒序浏览

show status;
+-----------------------------------+------------+
| Variable_name | Value |
+-----------------------------------+------------+
| Aborted_clients | 195150 |
| Aborted_connects | 9 |
| Binlog_cache_disk_use | 0 |
| Binlog_cache_use | 0 |
| Bytes_received | 95 |
| 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_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 | 136060 |
| Created_tmp_disk_tables | 0 |
| Created_tmp_files | 827 |
| 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 | 131 |
| Innodb_buffer_pool_pages_data | 511 |
| Innodb_buffer_pool_pages_dirty | 0 |
| Innodb_buffer_pool_pages_flushed | 88042 |
| Innodb_buffer_pool_pages_free | 0 |
| Innodb_buffer_pool_pages_latched | 0 |
| Innodb_buffer_pool_pages_misc | 1 |
| Innodb_buffer_pool_pages_total | 512 |
| Innodb_buffer_pool_read_ahead_rnd | 2152 |
| Innodb_buffer_pool_read_ahead_seq | 10809 |
| Innodb_buffer_pool_read_requests | 2638188241 |
| Innodb_buffer_pool_reads | 14752485 |
| Innodb_buffer_pool_wait_free | 0 |
| Innodb_buffer_pool_write_requests | 397188 |
| Innodb_data_fsyncs | 149531 |
| Innodb_data_pending_fsyncs | 0 |
| Innodb_data_pending_reads | 0 |
| Innodb_data_pending_writes | 0 |
| Innodb_data_read | 3724988416 |
| Innodb_data_reads | 14787521 |
| Innodb_data_writes | 226568 |
| Innodb_data_written | 2983749632 |
| Innodb_dblwr_pages_written | 88042 |
| Innodb_dblwr_writes | 10388 |
| Innodb_log_waits | 0 |
| Innodb_log_write_requests | 74869 |
| Innodb_log_writes | 120512 |
| Innodb_os_log_fsyncs | 129172 |
| Innodb_os_log_pending_fsyncs | 0 |
| Innodb_os_log_pending_writes | 0 |
| Innodb_os_log_written | 94468608 |
| Innodb_page_size | 16384 |
| Innodb_pages_created | 1328 |
| Innodb_pages_read | 14907286 |
| Innodb_pages_written | 88042 |
| 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 | 1 |
| Innodb_rows_inserted | 78674 |
| Innodb_rows_read | 1782332212 |
| Innodb_rows_updated | 3 |
| Key_blocks_not_flushed | 0 |
| Key_blocks_unused | 89337 |
| Key_blocks_used | 26911 |
| Key_read_requests | 13341106 |
| Key_reads | 30890 |
| Key_write_requests | 445371 |
| Key_writes | 103328 |
| Last_query_cost | 0.000000 |
| Max_used_connections | 361 |
| Ndb_cluster_node_id | 0 |
| Ndb_config_from_host | |
| Ndb_config_from_port | 0 |
| Ndb_number_of_data_nodes | 0 |
| Not_flushed_delayed_rows | 0 |
| Open_files | 324 |
| Open_streams | 0 |
| Open_tables | 256 |
| Opened_tables | 0 |
| Prepared_stmt_count | 0 |
| Qcache_free_blocks | 24 |
| Qcache_free_memory | 1146576 |
| Qcache_hits | 4855178 |
| Qcache_inserts | 16272310 |
| Qcache_lowmem_prunes | 2359952 |
| Qcache_not_cached | 621283 |
| Qcache_queries_in_cache | 253 |
| Qcache_total_blocks | 559 |
| Questions | 22396868 |
| 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 | 16453939 |
| Table_locks_waited | 228 |
| Tc_log_max_pages_used | 0 |
| Tc_log_page_size | 0 |
| Tc_log_page_waits | 0 |
| Threads_cached | 7 |
| Threads_connected | 13 |
| Threads_created | 81922 |
| Threads_running | 2 |
| Uptime | 1203680 |
+-----------------------------------+------------+
251 rows in set (0.00 sec)

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论坛徽章:: 3

CU大牛徽章
日期:2013-03-13 15:29:07

CU大牛徽章
日期:2013-03-13 15:29:49

CU大牛徽章
日期:2013-03-13 15:30:19

2楼 [报告]

发表于 2008-04-05 13:55 |只看该作者

没有一个人发表一下自己的看法吗

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

论坛徽章:: 0

3楼 [报告]

发表于 2008-04-05 19:23 |只看该作者

用的innodb吗？能详细的给点show variables吗？还有就是cpu 100% os 当时的load,越详细越好

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

论坛徽章:: 3

CU大牛徽章
日期:2013-03-13 15:29:07

CU大牛徽章
日期:2013-03-13 15:29:49

CU大牛徽章
日期:2013-03-13 15:30:19

4楼 [报告]

发表于 2008-04-10 09:16 |只看该作者

用的myisam

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

yueliangdao0608

论坛徽章:: 0

5楼 [报告]

发表于 2008-04-10 09:43 |只看该作者

| Qcache_lowmem_prunes | 2359952 |

这个值应该是0
加大你的query_cache_size

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

论坛徽章:: 0

6楼 [报告]

发表于 2008-04-10 16:13 |只看该作者

应该先找到愿意,查看占用100%cpu的sql的执行计划.然后再调整参数,不知原因在哪里,贸然修改参数,效果不会很好.

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

yueliangdao0608

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7楼 [报告]

发表于 2008-04-10 16:49 |只看该作者

| Table_locks_waited | 228 |

而且你这个值也偏大。看你的SQL语句还有没有优化的可能性。

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

论坛徽章:: 3

CU大牛徽章
日期:2013-03-13 15:29:07

CU大牛徽章
日期:2013-03-13 15:29:49

CU大牛徽章
日期:2013-03-13 15:30:19

8楼 [报告]

发表于 2008-04-11 00:09 |只看该作者

感谢回复..我测试一下..

实战分享：从技术角度谈机器学习入门| 【大话IT】RadonDB低门槛向MySQL集群下战书 | ChinaUnix打赏功能已上线！ | 新一代分布式关系型数据库RadonDB知多少？

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