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Support Article

CPU overload and extreme Garbage Collection after Pega 8 upgrade

SA-83283

Summary



Pega Platform 7.2.2 with Sales Automation for Insurance 7.14 is upgraded to Pega 8.1.3 with Sales Automation for Insurance 8.1.
The user has upgraded Tomcat 8 to Tomcat 9.0.12 and Oracle Java 7 to Adopt Open Java 8.

The environment consists of 10 nodes:
  • four nodes for field agents or Customer Service Representatives (CSRs)
  • two nodes for inhouse CSRs
  • two nodes for exposed WebServices
  • two nodes for background agents
After the upgrade, on using the system again, the CPU load is high and multiple PEGA0104 alerts are generated on the field agent's and the inhouse CSR's nodes. However, the background nodes are unaffected. Additionally, the System Pulse is lost.


Error Messages



PEGA0104 alerts


Steps to Reproduce



Not Applicable


Root Cause



A defect in Pegasystems’ code.

Threads hang and hence, the system does not work.


Resolution



Perform the following local-change:

Set <env name="lac/traditionalLACRegisterSynch" value="true"/> in prconfig.xml.

Tags:

Case Management

Published August 19, 2019 - Updated December 2, 2021

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