Trigger on Greatfinish Bloghttps://greatfinish.top/tags/trigger/Recent content in Trigger on Greatfinish BlogHugo -- gohugo.iozh-cn© 2026 Greatfinish Blog · [沪ICP备2026022892号](https://beian.miit.gov.cn/)Mon, 17 Aug 2026 16:15:00 +0800从连接数耗尽到 TX 行锁：一次 Oracle 11g RAC 故障排查记录https://greatfinish.top/posts/oracle11g-rac-session-exhaustion-tx-row-lock-trigger/Mon, 17 Aug 2026 16:15:00 +0800https://greatfinish.top/posts/oracle11g-rac-session-exhaustion-tx-row-lock-trigger/一次 Oracle 11g RAC 故障复盘：表面是连接数耗尽，实际根因是高并发 UPDATE 触发行级 Trigger，Trigger 双重循环中的 DELETE 对近 300 万行表反复全表扫描，拖长事务持锁时间，最终放大 TX 行锁并耗尽 Session。