SegmentNotFoundException observed in the AEM log file

Statement : SegmentNotFoundException Exceptions.

Environment :

           - AEM 6.3

Cause :  Might be due to long running JCR sessions along with online compaction.

Solution :

Avoid keeping JCR sessions open for a long time.  To resolve the issue:

1. Close the session and open a new one when required.
2. Or periodically call session.refresh(true).