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https://issues.apache.org/jira/browse/HBASE-12289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14957908#comment-14957908
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stack commented on HBASE-12289:
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What is to be done here [~anoop.hbase]?
> Avoid onheap buffer copying at RPCServer#serResponse
> ----------------------------------------------------
>
> Key: HBASE-12289
> URL: https://issues.apache.org/jira/browse/HBASE-12289
> Project: HBase
> Issue Type: Sub-task
> Components: regionserver, Scanners
> Reporter: Anoop Sam John
> Assignee: Anoop Sam John
>
> We would like to see DBB end-to-end in read path until we write to socket.
> IPCUtil#buildCellBlock doing a buffer creation and then write the data at
> once. This jira aims at checking how we can avoid this also.
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