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https://issues.apache.org/jira/browse/CASSANDRA-1746?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jonathan Ellis resolved CASSANDRA-1746.
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Resolution: Won't Fix
We don't have an efficient way to ask "does key exist in hints" (hints are
keyed by target).
> Cleanups should be less impacting
> ---------------------------------
>
> Key: CASSANDRA-1746
> URL: https://issues.apache.org/jira/browse/CASSANDRA-1746
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Edward Capriolo
> Priority: Minor
>
> When a new node is added its neighbours require cleanup. Cleanup is very
> performance impacting and for larger data sets takes a long time. You really
> do not get all the benefits of the new node until the neighbours are cleaned
> up.
> Suggestion:
> Configuration option that can be changed from JMX compaction_auto_cleanup :=
> {true,false} set to false by default.
> During non major compaction if compaction_auto_cleanup flag is set to TRUE,
> we look at the natural endpoints for the key we are compacting. If the key
> does not belong on this machine we can remove it.
> This would save us from the heavy hammer of cleanup compaction. It would also
> be less book keeping for administrators.
> Most people would want to leave this at false, join new node, wait a few
> days. If the node has not failed by now, it likely will not. Set the flag to
> true and cleanup will happen over time. Users can still force clean up if
> they wish.
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