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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-11482) Use correct UGI when KMSClientProvider is called by a proxy user
Date Sat, 24 Jan 2015 11:49:38 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-11482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14290564#comment-14290564
] 

Hudson commented on HADOOP-11482:
---------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk #817 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/817/])
HADOOP-11482. Use correct UGI when KMSClientProvider is called by a proxy user. Contributed
by Arun Suresh. (wang: rev 4b00935643f6c3656ccbd7eeb54884738bc12c2e)
* hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/kms/KMSClientProvider.java
* hadoop-common-project/hadoop-kms/src/test/java/org/apache/hadoop/crypto/key/kms/server/TestKMS.java
* hadoop-common-project/hadoop-common/CHANGES.txt


> Use correct UGI when KMSClientProvider is called by a proxy user
> ----------------------------------------------------------------
>
>                 Key: HADOOP-11482
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11482
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.6.0
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>             Fix For: 2.7.0
>
>         Attachments: HADOOP-11482.1.patch, HADOOP-11482.2.patch
>
>
> Long Living clients of HDFS (For eg. OOZIE) use cached DFSClients which in turn use a
cached KMSClientProvider to talk to KMS.
> Before an MR Job is run, the job client calls the {{DFClient.addDelegationTokens()}}
method which calls {{addDelegationTokens()}} on the {{KMSClientProvider}} to get any delegation
token associated to the user.
> Unfortunately, this call uses a cached {{DelegationTokenAuthenticationURL.Token}} instance
which can cause the {{SignerSecretProvider}} implementation of the {{AuthenticationFilter}}
at the KMS Server end to fail validation. Which results in the MR job itself failing.



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