T Jake Luciani created CASSANDRA-8639:
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Summary: Can OOM on CL replay with dense mutations
Key: CASSANDRA-8639
URL: https://issues.apache.org/jira/browse/CASSANDRA-8639
Project: Cassandra
Issue Type: Bug
Reporter: T Jake Luciani
Priority: Minor
Fix For: 2.1.3
If you write dense mutations with many clustering keys, the replay of the CL
can quickly overwhelm a node on startup. This looks to be caused by the fact
we only ensure there are 1000 mutations in flight at a time. but those
mutations could have thousands of cells in them.
A better approach would be to limit the CL replay to the amount of memory in
flight using cell.unsharedHeapSize()
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