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Parallel Query Waits on "PX Deq Credit: Send blkd" and "PX Deq: Table Q Normal" (Doc ID 1537216.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Information in this document applies to any platform.

Symptoms

Parallel Query waits on the following Wait Events and take long time to complete.
"PX Deq Credit: Send blkd" and "PX Deq: Table Q Normal".

It takes hours to complete in parallel mode where as it takes less time in Serial mode.

Changes

 

Cause

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