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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-12467) Master joins cluster but never completes initialization
Date Mon, 17 Nov 2014 10:19:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-12467?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214485#comment-14214485
] 

Hadoop QA commented on HBASE-12467:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12681863/HBASE-12467.01.patch
  against trunk revision .
  ATTACHMENT ID: 12681863

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

    {color:red}-1 tests included{color}.  The patch doesn't appear to include any new or modified
tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

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

Test results: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-rest.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-client.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-examples.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-protocol.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-common.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-server.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-thrift.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-prefix-tree.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-hadoop2-compat.html
Findbugs warnings: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/newPatchFindbugsWarningshbase-annotations.html
Checkstyle Errors: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//artifact/patchprocess/checkstyle-aggregate.html

  Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/11703//console

This message is automatically generated.

> Master joins cluster but never completes initialization
> -------------------------------------------------------
>
>                 Key: HBASE-12467
>                 URL: https://issues.apache.org/jira/browse/HBASE-12467
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>            Reporter: Nick Dimiduk
>            Assignee: Nick Dimiduk
>             Fix For: 2.0.0, 0.98.9, 0.99.2
>
>         Attachments: HBASE-12467.00.patch, HBASE-12467.00.patch, HBASE-12467.01.patch,
HBASE-12467.01.patch
>
>
> While diagnosing a rare failure in IntegrationTestLoadAndVerify, I discovered this scenario.
Master was restarted by CM. Upon rejoining the cluster it successfully assumes responsibility
as active master, but apparently the finishInitialization method never completes. The last
log line from that thread is
> {noformat}
> 2014-11-10 17:01:29,940 INFO  [master:ip-172-31-9-135:60000] master.HMaster: hbase:meta
with replicaId 0 assigned=0, rit=false, location=ip-172-31-9-136.ec2.internal,60020,1415638551951
> {noformat}
> I see region states populated from existing znodes. AM inventoried the online regions,
acknowledged that this was master failover. There it sits, responding to RPC's with {{PleaseHoldException:
Master is initializing}}.
> For the sake of resiliency, we should detect this scenario and at least release control
as active master.



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