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Date: Sat, 25 Oct 2014 20:07:33 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HBASE-12335) IntegrationTestRegionReplicaPerf
 is flaky
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    [ https://issues.apache.org/jira/browse/HBASE-12335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14184246#comment-14184246 ] 

Hadoop QA commented on HBASE-12335:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12677121/HBASE-12335.01.patch
  against trunk revision .
  ATTACHMENT ID: 12677121

    {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 tests.

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

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

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

                {color:red}-1 checkstyle{color}.  The applied patch generated 3792 checkstyle errors (more than the trunk's current 3791 errors).

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) 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:green}+1 site{color}.  The mvn site goal succeeds with this patch.

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

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//artifact/patchprocess/checkstyle-aggregate.html

                Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/11467//console

This message is automatically generated.

> IntegrationTestRegionReplicaPerf is flaky
> -----------------------------------------
>
>                 Key: HBASE-12335
>                 URL: https://issues.apache.org/jira/browse/HBASE-12335
>             Project: HBase
>          Issue Type: Test
>          Components: test
>    Affects Versions: 0.99.0, 2.0.0
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 2.0.0, 0.99.2
>
>         Attachments: HBASE-12335.00-0.99.patch, HBASE-12335.00.patch, HBASE-12335.00.patch, HBASE-12335.00.patch, HBASE-12335.01-0.99.patch, HBASE-12335.01.patch
>
>
> I find that this test often fails; the assertion that running with read replicas should complete faster than without is usually false. I need to investigate further as to why this is the case and how we should tune it.
> In the mean time, I'd like to change the test to assert instead on the average of the stdev across all the test runs in each category. Meaning, enabling this feature should reduce the overall latency variance experienced by the client.


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