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https://issues.apache.org/jira/browse/HBASE-15756?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15400398#comment-15400398
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binlijin commented on HBASE-15756:
----------------------------------
Netty's NioWork read request from channel to OffHeap, current we copy to heap
to decode into the Call.
HBaseProtocolEncoder write a CompositeChannelBuffer result which a wrap with
BufferChain's buffers.
Netty's NioWork write result to channel via ((GatheringByteChannel)
ch).write(buffers);
So i think there is no further copy.
This is the NettyRpcServer_forperf.patch with hbase branch-1.
If there is wrong, please correct me.
So i think Anoop Sam John's concern can be resolved.
> Pluggable RpcServer
> -------------------
>
> Key: HBASE-15756
> URL: https://issues.apache.org/jira/browse/HBASE-15756
> Project: HBase
> Issue Type: Improvement
> Components: Performance, rpc
> Reporter: binlijin
> Assignee: binlijin
> Priority: Critical
> Attachments: NettyRpcServer.patch, NettyRpcServer_forperf.patch,
> gets.png, idle.png, queue.png
>
>
> Current we use a simple RpcServer, and can not configure and use other
> implementation.This issue is to make the RpcServer pluggable, so we can make
> other implementation for example netty rpc server. Patch will upload laterly
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