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Posted to commits@cassandra.apache.org by "Brandon Williams (Jira)" <ji...@apache.org> on 2022/07/29 20:48:00 UTC

[jira] [Created] (CASSANDRA-17787) Full repair on a keyspace with a large amount of tables causes OOM

Brandon Williams created CASSANDRA-17787:
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             Summary: Full repair on a keyspace with a large amount of tables causes OOM
                 Key: CASSANDRA-17787
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-17787
             Project: Cassandra
          Issue Type: Bug
            Reporter: Brandon Williams


Running a nodetool repair -pr --full on a keyspace with a few hundred tables will cause a direct memory OOM, or lots of heap pressure with use_offheap_merkle_trees: false.  Adjusting repair_session_space_in_mb does not seem to help.  From an initial look at a heap dump, it appears to node is holding many _remote_ trees in memory.



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