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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12450) Unbalance chaos monkey might kill all region servers without starting them back
Date Sat, 08 Nov 2014 01:50:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14203124#comment-14203124
] 

Hadoop QA commented on HBASE-12450:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12680338/HBASE-12450.patch
  against trunk revision .
  ATTACHMENT ID: 12680338

    {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:green}+1 checkstyle{color}.  The applied patch does not increase the total number
of checkstyle 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:red}-1 core tests{color}.  The patch failed these unit tests:
                       org.apache.hadoop.hbase.regionserver.wal.TestLogRollingNoCluster

     {color:red}-1 core zombie tests{color}.  There are 1 zombie test(s): 	at org.apache.hadoop.yarn.server.resourcemanager.TestContainerResourceUsage.testUsageWithMultipleContainersAndRMRestart(TestContainerResourceUsage.java:159)

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/11619//console

This message is automatically generated.

> Unbalance chaos monkey might kill all region servers without starting them back
> -------------------------------------------------------------------------------
>
>                 Key: HBASE-12450
>                 URL: https://issues.apache.org/jira/browse/HBASE-12450
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Virag Kothari
>            Assignee: Virag Kothari
>            Priority: Minor
>             Fix For: 2.0.0, 0.98.8, 0.99.2
>
>         Attachments: HBASE-12450-0.98.patch, HBASE-12450.patch, HBASE-12450.patch
>
>
> UnbalanceKillAndRebalanceAction does kill, balance and then start of region servers.
But if the balance fails exception is thrown causing the region servers to not start. For
me, the balance always kept on failing with socket timeout (default 1 min) as master runs
one iteration of balance for 5 mins (default config). Eventually all servers are killed but
never started back.



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