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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-2956) calling fetchdt without a --renewer argument throws NPE
Date Wed, 06 May 2015 03:28:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer updated HDFS-2956:
-----------------------------------
    Labels: BB2015-05-TBR  (was: )

> calling fetchdt without a --renewer argument throws NPE
> -------------------------------------------------------
>
>                 Key: HDFS-2956
>                 URL: https://issues.apache.org/jira/browse/HDFS-2956
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: security
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Todd Lipcon
>            Assignee: Vinayakumar B
>              Labels: BB2015-05-TBR
>         Attachments: HDFS-2956.patch
>
>
> If I call "bin/hdfs fetchdt /tmp/mytoken" without a "--renewer foo" argument, then it
will throw a NullPointerException:
> Exception in thread "main" java.lang.NullPointerException
>         at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getDelegationToken(ClientNamenodeProtocolTranslatorPB.java:830)
> this is because getDelegationToken is being called with a null renewer



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