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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6853) MiniDFSCluster.isClusterUp() should not check if null NameNodes are up
Date Fri, 15 Aug 2014 01:11:19 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14098017#comment-14098017

Hadoop QA commented on HDFS-6853:

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  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 1 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}.  There were no new javadoc 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
2.0.3) warnings.

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

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-hdfs-project/hadoop-hdfs:


                                      The following test timeouts occurred in hadoop-hdfs-project/hadoop-hdfs:


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

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/7637//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/7637//console

This message is automatically generated.

> MiniDFSCluster.isClusterUp() should not check if null NameNodes are up
> ----------------------------------------------------------------------
>                 Key: HDFS-6853
>                 URL: https://issues.apache.org/jira/browse/HDFS-6853
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: James Thomas
>            Assignee: James Thomas
>         Attachments: HDFS-6853.patch
> Suppose we have a two-NN cluster and then shut down one of the NN's (NN0). When we try
to restart the other NN (NN1), we wait for isClusterUp() to return true, but this will never
happen because NN0 is null and isNameNodeUp returns false for a null NN.

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