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A nodes in a multi-node system does not respond intermittently



One of the nodes in a multi-node Pega system, does not respond. This occurs intermittently.

Error Messages


Steps to Reproduce


Root Cause

According to the Log file, a particular business process was triggered by various users, and brought back a large database payload. This JVM Heap Memory was not released after use, and consumed the heap space. Normal JVM Garbage Collection (GC) operations were observed, and memory was released. However, user interaction with this process, occurred with greater frequency than the GC operations. This lead to a gradual and complete exhaustion of the heap space.


  1. Review the business process.
  2. Implement the PAGE-REMOVE activity method step calls as required in the code.
  3. Ensure that all report definitions, list views, and OBJ-LIST and OBJ-BROWSE operations incorporate the correct and minimal filter to retrieve only those data items which are required from the database.

Published April 2, 2020 - Updated October 8, 2020

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