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Support Article

Kafka process runs for each node post application upgrade



Post upgrade to Pega 8.2.1, a Kafka process runs for each Pega JVM which consumes CPU storage. This results in performance degradation.

Error Messages

Not Applicable.

Steps to Reproduce


Root Cause

The Kafka process runs on Stream nodes and at least one Stream node is required for the Pega application to run. Unless otherwise specified, an 8.2.x node defaults to Background Processing, Search, WebUser, and Stream types.


Perform the following local-change:

To specify the node type, add the following JVM argument with a valid node type value such as WebUser:


If the node is a Stream node, navigate to Dev Studio > Configure > Decisioning > Infrastructure > Services > Stream, and decommission the node. Restart it after applying the JVM argument.


Published August 19, 2019 - Updated December 2, 2021

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