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Posted to hdfs-dev@hadoop.apache.org by "Todd Lipcon (Created) (JIRA)" <ji...@apache.org> on 2012/02/16 00:04:04 UTC

[jira] [Created] (HDFS-2956) calling fetchdt without a --renewer argument throws NPE

calling fetchdt without a --renewer argument throws NPE
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                 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


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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