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https://issues.apache.org/jira/browse/HBASE-4956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13267838#comment-13267838
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Lars Hofhansl commented on HBASE-4956:
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Potentially every call to readFully over the wire is suspect. Just did a quick
check. It's used in Put/Append/KeyValue/Bytes/etc/etc.
> 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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