Oracle DataPump Export (EXPDP) Is Slow On Partitioned Tables (Doc ID 1300895.1)

Last updated on MARCH 14, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.2.0.1 [Release 10.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 01-Oct-2014***
***Checked for relevance on 14-Mar-2016***

Symptoms

Oracle DataPump export (expdp) is slow on partitioned tables.

SQL tracing of DataPump export with TRACE=480300 shows large value for:

"wait for unread message on broadcast channel".

In this case, "wait for unread message on broadcast channel" is 1372.47 seconds:

Elapsed times include waiting on following events:
Event waited on Times Max. Wait Total Waited


---------------------------------------- Waited -----------------------
...
wait for unread message on broadcast channel  1931 1.01 1372.47

 

Cause

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