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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2956) calling fetchdt without a --renewer argument throws NPE
Date Mon, 04 Jun 2012 17:58:23 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13288744#comment-13288744
] 

Aaron T. Myers commented on HDFS-2956:
--------------------------------------

bq. I am leaning towards fixing it to be like it was befor

+1
                
> 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: 0.24.0
>            Reporter: Todd Lipcon
>            Assignee: Daryn Sharp
>
> 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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