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https://issues.apache.org/jira/browse/CASSANDRA-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729343#comment-13729343
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Vijay commented on CASSANDRA-5357:
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Hi Jonathan,
I pushed a basic version of Query cache to
https://github.com/Vijay2win/cassandra/commits/query_cache .I am not sure if we
still need RowCacheSentinel, but the attached removes it. Attached patch also
has an option query_cache: true (if set to false, the whole row will always be
cached). It will be nice to have fully off-heap Map/Cache (including the keys)
but i am thinking to address it with a separate github project/patch (though
IMHO, CHM may have contention in the segments for a big caches).
Let me know what you think about the patch, it might need some more cleanup.
> Query cache
> -----------
>
> Key: CASSANDRA-5357
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5357
> Project: Cassandra
> Issue Type: Bug
> Reporter: Jonathan Ellis
> Assignee: Vijay
>
> I think that most people expect the row cache to act like a query cache,
> because that's a reasonable model. Caching the entire partition is, in
> retrospect, not really reasonable, so it's not surprising that it catches
> people off guard, especially given the confusion we've inflicted on ourselves
> as to what a "row" constitutes.
> I propose replacing it with a true query cache.
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