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https://issues.apache.org/jira/browse/HBASE-4956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267839#comment-13267839
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Todd Lipcon commented on HBASE-4956:
------------------------------------

I'd think we should make the max read configurable. Otherwise we should do some 
benchmarks to show that this doesn't cause a regression. My worry is that this 
would translate to a bunch more syscalls, no?
                
> Control direct memory buffer consumption by HBaseClient
> -------------------------------------------------------
>
>                 Key: HBASE-4956
>                 URL: https://issues.apache.org/jira/browse/HBASE-4956
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Ted Yu
>
> As Jonathan explained here 
> https://groups.google.com/group/asynchbase/browse_thread/thread/c45bc7ba788b2357?pli=1
>  , standard hbase client inadvertently consumes large amount of direct memory.
> We should consider using netty for NIO-related tasks.

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