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  1. Cassandra
  2. CASSANDRA-17787

Full repair on a keyspace with a large amount of tables causes OOM

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    • Degradation - Performance Bug/Regression
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    Description

      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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            Unassigned Unassigned
            brandon.williams Brandon Williams
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