Support Article

Asynchronous data page load hangs near peak load

SA-34322

Summary



The user notices several performance issues after a weekend minor application release. Users are unable to work in the application. Thread dumps are seen in the log file.

Error Messages



Not Applicable


Steps to Reproduce



Not Applicable.


Root Cause



A defect or configuration issue in the operating environment

This application is using asynchronous load of data pages extensively. Asynchronous data page loads are using work manager thread. users's environment this was set to 5 and Pega deployment guide suggests 20.

Resolution



Make the following change to the operating environment:

Increase the Websphere work manager thread count to 35 in UAT environment and did performance testing to make sure everything is good before moving the change to production.

Published February 28, 2017 - Updated March 1, 2017

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