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https://issues.apache.org/jira/browse/HBASE-4956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13174892#comment-13174892
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Zhihong Yu commented on HBASE-4956:
-----------------------------------

Currently lily-project uses a hack to share ExecutorService among all HTable 
instances.
Once HBASE-5084 is integrated, client application would have full control over 
reusing ExecutorService across all HTable instances.
                
> 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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