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PX Deq: Execute Reply等待事件

Occurs when the query coordinator is waiting for a response from a parallel slave. 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(468)  评论(0)    收藏  举报

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