R12 - Exalogic PSU Upgrade Results in Concurrent Request / Output Post Processor (OPP) Performance Issues for XML - PDF Reports (Doc ID 2112826.1)

Last updated on MARCH 04, 2016

Applies to:

Oracle Concurrent Processing - Version 12.1.3 to 12.2.5 [Release 12.1 to 12.2]
Information in this document applies to any platform.

Symptoms

E-Business Suite 12.1.3, Concurrent Manager issues

ACTUAL BEHAVIOR
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After a recent Exalogic PSU upgrade, the Concurrent request / Output Post Processor (OPP) performance is very slow.

AWR reports show high wait-event "SQL*Net more data to client" during request and/or output processing.

In parallel adadmin is slow compiling forms. Further investigation shows frequent coredumps and segmentation fault messages.

The system topology includes 2 PCP nodes with OPP configured to run on both nodes, however OPP only starts on one of the nodes.


EXPECTED BEHAVIOR
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The OPP performance should match or exceed the levels achieved prior to the Exalogic PSU upgrade.


BUSINESS IMPACT
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The issue has the following business impact:

Large business processes for 700K users (Payroll runs) are slow, causing direct impacts to the business.

Changes

 An Exalogic PSU upgrade was recently completed.

Cause

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