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PX Deq: Execution Msg等待事件

Occurs when a parallel slave is waiting to be told what to do. This is normally considered an idle event, but can cause excessive CPU in some cases.      

Solution

Reduce the degree of parallelism in the query if excessive CPU usage is detected.

posted on 2013-03-19 00:47  Oracle和MySQL  阅读(512)  评论(0)    收藏  举报

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