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https://issues.apache.org/jira/browse/GIRAPH-840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13898819#comment-13898819
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Eugene Koontz commented on GIRAPH-840:
--------------------------------------

Pavan thanks for the updating the review. It looks good and I recognize the 
significant work it took; especially having to mess with the SASL channel 
handlers :) 

My only problem is that I cannot apply the latest patch:

https://gist.github.com/ekoontz/8950523

Am I doing something wrong? Do I have the wrong URL for the latest patch?

> Upgrade to netty 4
> ------------------
>
>                 Key: GIRAPH-840
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-840
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Pavan Kumar
>            Assignee: Pavan Kumar
>             Fix For: 1.1.0
>
>
> Off late netty 4 has earned so much praise in the community. For example, 
> https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead
> A switch to netty 4 enables a significant reduction in gc pressure and also 
> huge performance gains. I started working on this last Sunday and have a 
> patch that shows performance gains on the order of 15-25% (total execution 
> time) for some applications at Facebook. However, I only tested it with 
> hadoop_facebook. So there might be issues with SASL path. 
> I will release the patch today and want to open up a discussion if anyone is 
> using the secure feature anymore. If not we can just deprecate it.



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