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Date: Wed, 4 Jan 2012 08:09:39 +0000 (UTC)
From: "Uma Maheswara Rao G (Assigned) (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Assigned] (HDFS-2747) HA: entering SM after starting SBN
 can NPE
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     [ https://issues.apache.org/jira/browse/HDFS-2747?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Uma Maheswara Rao G reassigned HDFS-2747:
-----------------------------------------

    Assignee: Uma Maheswara Rao G
    
> HA: entering SM after starting SBN can NPE
> ------------------------------------------
>
>                 Key: HDFS-2747
>                 URL: https://issues.apache.org/jira/browse/HDFS-2747
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Eli Collins
>            Assignee: Uma Maheswara Rao G
>
> Entering SM on the primary after while it's already in SM after the SBN is started results in an NPE: 
> {noformat}
> hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfsadmin -safemode get
> Safe mode is ON
> hadoop-0.24.0-SNAPSHOT $ ./bin/hdfs dfsadmin -safemode enter
> safemode: java.lang.NullPointerException
> {noformat}

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