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https://issues.apache.org/jira/browse/HDFS-994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jakob Homan updated HDFS-994:
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    Attachment: HDFS-994-2.patch

Updated patch now with test-passing goodness.  Not sure where Hudson is, so ran 
full unit tests manually. All pass.  Test-patch is good too.
{noformat}[exec] +1 overall.  
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[exec]     +1 @author.  The patch does not contain any @author tags.
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[exec]     +1 tests included.  The patch appears to include 2 new or modified 
tests.
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[exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
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[exec]     +1 javac.  The applied patch does not increase the total number of 
javac compiler warnings.
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[exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
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[exec]     +1 release audit.  The applied patch does not increase the total 
number of release audit warnings.
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> Provide methods for obtaining delegation token from Namenode for hftp and 
> other uses
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-994
>                 URL: https://issues.apache.org/jira/browse/HDFS-994
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Jakob Homan
>            Assignee: Jakob Homan
>         Attachments: HDFS-994-2.patch, HDFS-994.patch
>
>
> In hftp, destination clusters will require an RPC-version-agnostic means of 
> obtaining delegation tokens from the source cluster. The easiest method is 
> provide a webservice to retrieve a token over http.  This can be encrypted 
> via SSL (backed by Kerberos, done in another JIRA), providing security for 
> cross-cluster hftp operations.

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