OutOfMemoryError due to large session counts in heap with ATG on EAP 7

Solution Verified - Updated -

Issue

  • When running on ATG on EAP 7, we started seeing OutOfMemoryErrors. Heap dumps show the heap is being consumed by large amounts of sessions that are retained within the atg.multisite.session.MultisiteComponentSessionManager's mSessions HashTable.

Environment

  • JBoss Enterprise Application Platform (EAP) 7.x
  • ATG 11.3

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