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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12684) Add new AsyncRpcClient
Date Thu, 08 Jan 2015 16:36:35 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269516#comment-14269516
] 

stack commented on HBASE-12684:
-------------------------------

[~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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