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https://issues.apache.org/jira/browse/TAJO-598?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899188#comment-13899188
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Tajo QA commented on TAJO-598:
------------------------------

{color:red}*-1 overall.*{color}  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12628498/TAJO-598.patch
  against master revision 519a16a.

    {color:green}+1 @author.{color}  The patch does not contain any @author 
tags.

    {color:green}+1 tests included.{color}  The patch appears to include 6 new 
or modified test files.

    {color:green}+1 javac.{color}  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc.{color}  The applied patch does not increase the 
total number of javadoc warnings.

    {color:green}+1 checkstyle.{color}  The patch generated 0 code style errors.

    {color:red}-1 findbugs.{color}  The patch appears to introduce 239 new 
Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit.{color}  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests.{color}  The patch passed unit tests in 
tajo-catalog/tajo-catalog-server tajo-client tajo-common 
tajo-core/tajo-core-backend tajo-core/tajo-core-pullserver tajo-rpc.

Test results: 
https://builds.apache.org/job/PreCommit-TAJO-Build/119//testReport/
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/119//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-catalog-server.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/119//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core-backend.html
Findbugs warnings: 
https://builds.apache.org/job/PreCommit-TAJO-Build/119//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core-pullserver.html
Console output: https://builds.apache.org/job/PreCommit-TAJO-Build/119//console

This message is automatically generated.

> Refactoring Tajo RPC
> --------------------
>
>                 Key: TAJO-598
>                 URL: https://issues.apache.org/jira/browse/TAJO-598
>             Project: Tajo
>          Issue Type: Improvement
>          Components: rpc
>    Affects Versions: 0.8-incubating
>            Reporter: Jinho Kim
>            Assignee: Jinho Kim
>         Attachments: TAJO-598.patch
>
>
> In the current implementation, all client rpc use same channel pool.
> It can cause a channel closed exception. we need both shared pool and new 
> pool.
> In details, 
> * Fix the TajoAsyncDispatcher hang
> * Fix the Fetcher timeout
> * Fix the TaskRunner thread leak
> * Fix the client rpc reconnecting
> * Fix the unittest failure(No available resources)
> * Improve RPC thread sharing



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