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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-10490) Simplify RpcClient code
Date Thu, 13 Feb 2014 11:07:21 GMT

    [ https://issues.apache.org/jira/browse/HBASE-10490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13900218#comment-13900218
] 

Hadoop QA commented on HBASE-10490:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12628707/10490.v5.patch
  against trunk revision .
  ATTACHMENT ID: 12628707

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

    {color:green}+1 tests included{color}.  The patch appears to include 9 new or modified
tests.

    {color:green}+1 hadoop1.0{color}.  The patch compiles against the hadoop 1.0 profile.

    {color:green}+1 hadoop1.1{color}.  The patch compiles against the hadoop 1.1 profile.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

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

    {color:red}-1 findbugs{color}.  The patch appears to introduce 1 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 lineLengths{color}.  The patch does not introduce lines longer than 100

    {color:red}-1 site{color}.  The patch appears to cause mvn site goal to fail.

    {color:green}+1 core tests{color}.  The patch passed unit tests in .

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//artifact/trunk/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/8680//console

This message is automatically generated.

> Simplify RpcClient code
> -----------------------
>
>                 Key: HBASE-10490
>                 URL: https://issues.apache.org/jira/browse/HBASE-10490
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 0.99.0
>            Reporter: Nicolas Liochon
>            Assignee: Nicolas Liochon
>             Fix For: 0.99.0
>
>         Attachments: 10490.v1.patch, 10490.v2.patch, 10490.v3.patch, 10490.v5.patch
>
>
> The code is complex. Here is a set of proposed changes, for trunk:
> 1) remove PingInputStream. if rpcTimeout > 0 it just rethrows the exception. I expect
that we always have a rpcTimeout. So we can remove the code.
> 2) remove the sendPing: instead, just close the connection if it's not used for a while,
instead of trying to ping the server.
> 3) remove maxIddle time: to avoid the confusion if someone has overwritten the conf.
> 4) remove shouldCloseConnection: it was more or less synchronized with closeException.
Having a single variable instead of two avoids the synchro
> 5) remove lastActivity: instead of trying to have an exact timeout, just kill the connection
after some time. lastActivity could be set to wrong values if the server was slow to answer.
> 6) hopefully, a better management of the exception; we don't use the close exception
of someone else as an input for another one.  Same goes for interruption.
> I may have something wrong in the code. I will review it myself again. Feedback welcome,
especially on the ping removal: I hope I got all the use cases. 



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