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https://issues.apache.org/jira/browse/CASSANDRA-1007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12886366#action_12886366
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Todd Blose commented on CASSANDRA-1007:
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Yeah, got distracted with some things. I'll try and have it finished this
weekend. Just have to rebase what I have with trunk
> Make memtable flush thresholds per-CF instead of global
> -------------------------------------------------------
>
> Key: CASSANDRA-1007
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1007
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Assignee: Todd Blose
> Priority: Minor
> Fix For: 0.7
>
>
> This is particularly useful in the scenario where you have a few CFs with a
> high volume of overwrite operations; increasing the memtable size/op count
> means that you can do the overwrite in memory before it ever hits disk. Once
> on disk compaction is much more work for the system.
> But, you don't want to give _all_ your CFs that high of a threshold because
> the memory is better used elsewhere, and because it makes commitlog replay
> unnecessarily painful.
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