Jonathan Ellis created CASSANDRA-5348:
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Summary: Remove row cache until we can replace it with something
better
Key: CASSANDRA-5348
URL: https://issues.apache.org/jira/browse/CASSANDRA-5348
Project: Cassandra
Issue Type: Task
Components: Core
Reporter: Jonathan Ellis
Assignee: Jonathan Ellis
Fix For: 2.0
The row (partition) cache easily does more harm than good. People expect it to
act like a query cache but it is very different than that, especially for the
wide partitions that are so common in Cassandra data models.
Making it off-heap by default only helped a little; we still have to
deserialize the partition to the heap to query it.
Ultimately we can add a better cache based on the ideas in CASSANDRA-1956 or
CASSANDRA-2864, but even if we don't get to that until 2.1, removing the old
row cache for 2.0 is a good idea.
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