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From "Yi Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7984) webhdfs:// needs to support provided delegation tokens
Date Sun, 25 Oct 2015 14:19:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7984?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14973256#comment-14973256
] 

Yi Liu commented on HDFS-7984:
------------------------------

{quote}
String fileLocation = System.getenv(HADOOP_TOKEN_FILE_LOCATION);
...
Credentials cred = Credentials.readTokenStorageFile(
{quote}

The HADOOP_TOKEN_FILE_LOCATION already support multiple tokens.

> webhdfs:// needs to support provided delegation tokens
> ------------------------------------------------------
>
>                 Key: HDFS-7984
>                 URL: https://issues.apache.org/jira/browse/HDFS-7984
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: webhdfs
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: HeeSoo Kim
>            Priority: Blocker
>         Attachments: HDFS-7984.patch
>
>
> When using the webhdfs:// filesystem (especially from distcp), we need the ability to
inject a delegation token rather than webhdfs initialize its own.  This would allow for cross-authentication-zone
file system accesses.



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