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PX Deq: Table Q Normal等待事件

Occurs when a parallel slave is waiting for data from another slave. Investigate why the other slaves are not sending data fast enough. This is normally considered an idle event, but can cause excessive CPU in some cases.      

Solution

Reduce the degree of parallelism in the query.

posted on 2013-03-19 00:47  Oracle和MySQL  阅读(880)  评论(0)    收藏  举报

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