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https://issues.apache.org/jira/browse/KUDU-1438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16865887#comment-16865887
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Grant Henke commented on KUDU-1438:
-----------------------------------
Yeah, IIRC there will be no more Netty 3 releases. This is the last of our
outdated Java dependencies. Everything else has been updated. It would be
awesome to get this one upgraded.
> [java client] Upgrade to Netty 4
> --------------------------------
>
> Key: KUDU-1438
> URL: https://issues.apache.org/jira/browse/KUDU-1438
> Project: Kudu
> Issue Type: Improvement
> Components: client
> Reporter: Jean-Daniel Cryans
> Priority: Major
> Labels: kudu-roadmap
>
> Netty 4 promises better performance for certain workloads, it was an effort
> mostly led by Twitter. See their blog post about it:
> https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead
> asynchbase has a pull request for this, so our work should be similar:
> https://github.com/OpenTSDB/asynchbase/pull/116/commits
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