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由于DS_SVC 查询导致12.2 及以上版本出现Library Cache Lock 或Cursor: Pin S wait on X高等待事件 (Doc ID 2577506.1)

Last updated on AUGUST 19, 2019

适用于:

Oracle Database - Enterprise Edition - 版本 12.2.0.1 和更高版本
本文档所含信息适用于所有平台

症状

更改

DB升级到12.2

样例: 如下是Hanganalyze trace.

Session: 197已经等待了"SQL*Net message from dblink" 3949 秒,并且运行了上面的SQL。

原因

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