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https://issues.apache.org/jira/browse/CASSANDRA-50?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12695479#action_12695479
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Johan Oskarsson commented on CASSANDRA-50:
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>From what I've read on the mailing list and glancing over this code the patch
>gets a +1 from me.
> expunge ConcurrentHashMap
> -------------------------
>
> Key: CASSANDRA-50
> URL: https://issues.apache.org/jira/browse/CASSANDRA-50
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Jonathan Ellis
> Attachments:
> 0001-expunge-ConcurrentHashMap-in-favor-of-NonBlockingHas.patch
>
>
> Avinash says it is less memory-efficient than NonBlockingHashMap. NBHM also
> has better performance numbers, although we don't use any of these instances
> in high-contention scenarios.
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