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https://issues.apache.org/jira/browse/HBASE-12684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269516#comment-14269516
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stack commented on HBASE-12684:
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[~jurmous] Makes sense. A better GC profile with a path to async is reason
enough to get this in (on by default in 2.0 branch and an option in 1.1). Some
regression is ok I'd say. What other advantages would you list in its favor?
Let me run the compares of the new stuff (your rationale for why its slower
makes sense to me).
> Add new AsyncRpcClient
> ----------------------
>
> Key: HBASE-12684
> URL: https://issues.apache.org/jira/browse/HBASE-12684
> Project: HBase
> Issue Type: Improvement
> Components: Client
> Reporter: Jurriaan Mous
> Assignee: Jurriaan Mous
> Attachments: HBASE-12684-DEBUG2.patch, HBASE-12684-DEBUG3.patch,
> HBASE-12684-v1.patch, HBASE-12684-v10.patch, HBASE-12684-v11.patch,
> HBASE-12684-v12.patch, HBASE-12684-v13.patch, HBASE-12684-v14.patch,
> HBASE-12684-v15.patch, HBASE-12684-v16.patch, HBASE-12684-v17.patch,
> HBASE-12684-v17.patch, HBASE-12684-v18.patch, HBASE-12684-v19.1.patch,
> HBASE-12684-v19.patch, HBASE-12684-v19.patch, HBASE-12684-v2.patch,
> HBASE-12684-v20-heapBuffer.patch, HBASE-12684-v20.patch,
> HBASE-12684-v21-heapBuffer.1.patch, HBASE-12684-v21-heapBuffer.patch,
> HBASE-12684-v21.patch, HBASE-12684-v22.patch, HBASE-12684-v23-epoll.patch,
> HBASE-12684-v24.patch, HBASE-12684-v24.patch, HBASE-12684-v3.patch,
> HBASE-12684-v4.patch, HBASE-12684-v5.patch, HBASE-12684-v6.patch,
> HBASE-12684-v7.patch, HBASE-12684-v8.patch, HBASE-12684-v9.patch,
> HBASE-12684.patch, myrecording.jfr, requests.png
>
>
> With the changes in HBASE-12597 it is possible to add new RpcClients. This
> issue is about adding a new Async RpcClient which would enable HBase to do
> non blocking protobuf service communication.
> Besides delivering a new AsyncRpcClient I would also like to ask the question
> what it would take to replace the current RpcClient? This would enable to
> simplify async code in some next issues.
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