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From "Arpit Gupta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6312) WebHdfs HA failover is broken on secure clusters
Date Wed, 30 Apr 2014 15:58:15 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6312?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13985657#comment-13985657
] 

Arpit Gupta commented on HDFS-6312:
-----------------------------------

[~daryn] in our testing with webhdfs + HA on a secure cluster we hit HADOOP-10519. I am curious
what kind of job did you run that actually started running tasks.

> WebHdfs HA failover is broken on secure clusters
> ------------------------------------------------
>
>                 Key: HDFS-6312
>                 URL: https://issues.apache.org/jira/browse/HDFS-6312
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 3.0.0, 2.4.0
>            Reporter: Daryn Sharp
>            Priority: Blocker
>
> When webhdfs does a failover, it blanks out the delegation token.  This will cause subsequent
operations against the other NN to acquire a new token.  Tasks cannot acquire a token (no
kerberos credentials) so jobs will fail.



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