Jordan West created CASSANDRA-14782:
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Summary: Large mutations can wreak havoc before being rejected by
the commit log
Key: CASSANDRA-14782
URL: https://issues.apache.org/jira/browse/CASSANDRA-14782
Project: Cassandra
Issue Type: Bug
Reporter: Jordan West
Large mutations are rejected by the commit log
(https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/db/commitlog/CommitLog.java#L254)
but when {{totalSize}} is significantly greater than the {{MAX_MUTATION_SIZE}}
the damage to the node may already done. Large mutations cause large buffers to
be allocated and can lead to GC trashing and generally bad node health.
It should be possible to set a size above which the native protocol rejects
messages without materializing them into objects and passing them downstream.
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