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From "Daryn Sharp (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-2385) Support delegation token renewal in webhdfs
Date Wed, 05 Oct 2011 18:18:31 GMT

    [ https://issues.apache.org/jira/browse/HDFS-2385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13121315#comment-13121315
] 

Daryn Sharp commented on HDFS-2385:
-----------------------------------

Sorry I'm late to comment, but I'm confused by the webhdfs renew and cancel.
{code}
final String uri = WebHdfsFileSystem.SCHEME  + "://"
    + conf.get("dfs.http.address");
...
return (WebHdfsFileSystem)FileSystem.get(new URI(uri), conf);
{code}

Does this work if webhdfs isn't being used to contact the default namenode?  It would appear
that tokens will fail to renew during a distcp from a remote namenode because the tokens are
renewed against the local namenode.  Why isn't the service in the token being used?

                
> Support delegation token renewal in webhdfs
> -------------------------------------------
>
>                 Key: HDFS-2385
>                 URL: https://issues.apache.org/jira/browse/HDFS-2385
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 0.20.205.0, 0.20.206.0
>
>         Attachments: h2358_20111001_0.20s.patch, h2385_20111004_0.20s.patch, h2385_20111004b_0.20s.patch
>
>


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