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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9220) Unnecessary transition to standby in ActiveStandbyElector
Date Fri, 18 Jan 2013 17:58:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13557404#comment-13557404
] 

Hadoop QA commented on HADOOP-9220:
-----------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12565504/HADOOP-9220.patch
  against trunk revision .

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

    {color:green}+1 tests included{color}.  The patch appears to include 2 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 javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any 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 hadoop-common-project/hadoop-common.

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

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/2071//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2071//console

This message is automatically generated.
                
> Unnecessary transition to standby in ActiveStandbyElector
> ---------------------------------------------------------
>
>                 Key: HADOOP-9220
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9220
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ha
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: HADOOP-9220.patch, HADOOP-9220.patch
>
>
> When performing a manual failover from one HA node to a second, under some circumstances
the second node will transition from standby -> active -> standby -> active. This
is with automatic failover enabled, so there is a ZK cluster doing leader election.

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