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From "James Thomas (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6853) MiniDFSCluster.isClusterUp() should not check if null NameNodes are up
Date Mon, 18 Aug 2014 17:38:19 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

James Thomas updated HDFS-6853:
-------------------------------

    Attachment: HDFS-6853.2.patch

Reposted same patch to retrigger Jenkins.

> 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-6853.2.patch, 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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