--- title: "V$SYSTEM_EVENT - OceanBase 数据库 V4.4.0 | OceanBase 文档中心" description: V$SYSTEM_EVENT 说明 该视图从 V1.4 版本开始引入。 功能描述 展示各租户在当前 OBServer 节点上的等待事件，统计每一类等待事件的发生次数、等待时间、超时次数等。 字段说明 字段名称 类型 是否可以为 NULL 描述 CON_ID bigint(20) NO 租户 ID SVR_IP var… --- 切换语言 - 中文站 - 简体中文 - International - English - 日本站 - 日本語 文档反馈![](https://mdn.alipayobjects.com/huamei_22khvb/afts/img/A*P8CuR4UJ_FkAAAAAAAAAAAAADiGDAQ/original) OceanBase 数据库分布式版 - V 4.4.0 # V$SYSTEM_EVENT 更新时间：2025-08-17 20:17:19 [编辑](https://github.com/oceanbase/oceanbase-doc/edit/V4.4.0/zh-CN/700.reference/700.system-views/300.system-view-of-sys-tenant/300.performance-view-of-sys-tenant/36600.v-system_event-of-sys-tenant.md) #### 说明 该视图从 V1.4 版本开始引入。 ## 功能描述 展示各租户在当前 OBServer 节点上的等待事件，统计每一类等待事件的发生次数、等待时间、超时次数等。 ## 字段说明 | **字段名称** | **类型** | **是否可以为 NULL** | **描述** | | --- | --- | --- | --- | | CON_ID | bigint(20) | NO | 租户 ID | | SVR_IP | varchar(46) | NO | 信息所在 Server 的 IP | | SVR_PORT | bigint(20) | NO | 信息所在 Server 的端口号 | | EVENT_ID | bigint(20) | NO | 等待事件的 ID | | EVENT | varchar(64) | NO | 等待事件的描述 | | WAIT_CLASS_ID | bigint(20) | NO | 等待事件的所属 Class ID | | WAIT_CLASS# | bigint(20) | NO | 等待事件的所属的 Class下标 | | WAIT_CLASS | varchar(64) | NO | 等待事件所属的 Class | | TOTAL_WAITS | bigint(20) | NO | 该等待事件的总等待次数 | | TOTAL_TIMEOUTS | bigint(20) | NO | 该等待事件的总超时次数 | | TIME_WAITED | double | NO | 该等待事件的总等待时间，单位为 10 ms | | AVERAGE_WAIT | double | NO | 该等待事件的平均等待时间，单位为 10 ms | | TIME_WAITED_MICRO | bigint(20) | NO | 该等待事件的总等待时间，单位为微秒 | ## 查询示例 系统租户下，查看所有租户在当前节点的所有等待事件，展示前 10 条记录。 ```shell obclient [oceanbase]> SELECT * FROM oceanbase.V$SYSTEM_EVENT LIMIT 10; ``` 查询结果如下： ```shell +--------+----------------+----------+----------+-------------------------------------+---------------+-------------+---------------+-------------+----------------+-------------+----------------------+-------------------+ | CON_ID | SVR_IP | SVR_PORT | EVENT_ID | EVENT | WAIT_CLASS_ID | WAIT_CLASS# | WAIT_CLASS | TOTAL_WAITS | TOTAL_TIMEOUTS | TIME_WAITED | AVERAGE_WAIT | TIME_WAITED_MICRO | +--------+----------------+----------+----------+-------------------------------------+---------------+-------------+---------------+-------------+----------------+-------------+----------------------+-------------------+ | 1 | 11.xxx.xxx.xxx | 28825 | 10001 | db file data read | 108 | 8 | USER_IO | 1062255 | 0 | 13525.925 | 0.01273321848332086 | 135259250 | | 1 | 11.xxx.xxx.xxx | 28825 | 11001 | db file compact read | 109 | 9 | SYSTEM_IO | 1412366 | 0 | 56152.2317 | 0.03975756404501383 | 561522317 | | 1 | 11.xxx.xxx.xxx | 28825 | 11002 | db file compact write | 109 | 9 | SYSTEM_IO | 311353 | 0 | 17540.5111 | 0.05633641268913419 | 175405111 | | 1 | 11.xxx.xxx.xxx | 28825 | 11016 | palf read | 109 | 9 | SYSTEM_IO | 914 | 0 | 29.6847 | 0.03247778993435448 | 296847 | | 1 | 11.xxx.xxx.xxx | 28825 | 11017 | palf write | 109 | 9 | SYSTEM_IO | 9706706 | 0 | 239668.5615 | 0.024691029222477737 | 2396685615 | | 1 | 11.xxx.xxx.xxx | 28825 | 13000 | sync rpc | 107 | 7 | NETWORK | 908785 | 0 | 53998.3223 | 0.059418148737050015 | 539983223 | | 1 | 11.xxx.xxx.xxx | 28825 | 13001 | mysql response wait client | 106 | 6 | IDLE | 5324 | 0 | 73.8805 | 0.013876878287002254 | 738805 | | 1 | 11.xxx.xxx.xxx | 28825 | 13003 | external table wait remote response | 107 | 7 | NETWORK | 1 | 0 | 0.0137 | 0.0137 | 137 | | 1 | 11.xxx.xxx.xxx | 28825 | 13004 | wait in request queue | 102 | 2 | CONFIGURATION | 6159353 | 0 | 14228.6415 | 0.002310087033491992 | 142286415 | | 1 | 11.xxx.xxx.xxx | 28825 | 15101 | default condition wait | 104 | 4 | CONCURRENCY | 5743569 | 0 | 219216.8729 | 0.03816736125221095 | 2192168729 | +--------+----------------+----------+----------+-------------------------------------+---------------+-------------+---------------+-------------+----------------+-------------+----------------------+-------------------+ 10 rows in set ``` ## 相关视图或文档 - 查看所有 Session 的当前或上一次等待事件： - [GV$SESSION_WAIT](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003380576) - [V$SESSION_WAIT](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003380552) - 查看 Session 级别的所有等待事件： - [GV$SESSION_EVENT](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003380635) - [V$SESSION_EVENT](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003380702) - 查看租户所有等待事件的定义：[V$EVENT_NAME](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003380670) - 有关等待事件的详细说明，参见 [常见等待事件说明](https://www.oceanbase.com/docs/common-oceanbase-database-cn-1000000003378629)。 上一篇 下一篇 ![有帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*y6ocSqN8cqsAAAAAAAAAAAAAARQnAQ)![无帮助](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*BG9IQJyLHF8AAAAAAAAAAAAAARQnAQ)![反馈](https://gw.alipayobjects.com/mdn/ob_asset/afts/img/A*eTWdQKCRKHwAAAAAAAAAAAAAARQnAQ)[AI](https://www.oceanbase.com/obi) 咨询热线