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Support Article

JVM heap filling after attempting to Index



When Admin user attempts to re-index work from the Search Landing Page, the Pega node gets stuck JVM heap fills, with OutOfMemory errors in the PegaRULES logfile.

Error Messages

On screen:
Problem occurred while fetching Re index status. Please check your network setup!!!

In PegaRULES logfile:

java.lang.OutOfMemoryError: GC overhead limit exceeded
Caused by: java.lang.OutOfMemoryError: Java heap space
    at com.pegarules.generated.activity.ra_action_pzftsbatchindexingcoordinator_7eb128d96f0f513e2b6513abb6004938.step1_circum0(

Steps to Reproduce

Use Search Landing page to re-Index all work objects

Root Cause

A defect in Pegasystems’ code or rules.  In the case of a Application with a large Declarative Network, objects are building in the memory of the indexing thread(s).


Apply HFix-27737, which disables Declarative processing during indexing.


Suggest Edit

Published June 17, 2016 - Updated October 8, 2020

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