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Date: Tue, 28 Sep 2010 14:22:33 -0400 (EDT)
From: "Aaron T. Myers (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Subject: [jira] Commented: (HADOOP-6951) Distinct minicluster services (e.g.
 NN and JT) overwrite each other's service policies
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    [ https://issues.apache.org/jira/browse/HADOOP-6951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12915864#action_12915864 ] 

Aaron T. Myers commented on HADOOP-6951:
----------------------------------------

Hi Tom,

I've now run test-core and test-patch on both HDFS-1399 and MAPREDUCE-2067. Would you mind taking another look at this?

Thanks a lot,
Aaron

> Distinct minicluster services (e.g. NN and JT) overwrite each other's service policies
> --------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6951
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6951
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>             Fix For: 0.22.0
>
>         Attachments: hadoop-6951.1.txt, hadoop-6951.2.txt, hadoop-6951.txt.0
>
>
> Because the protocol -> ACL mapping in ServiceAuthorizationManager is static, services which are run in the same JVM have the potential to clobber the other's service authorization ACLs whenever ServiceAuthorizationManager.refresh() is called. This causes authorization failures if one tries to launch a 2NN connected to a minicluster with hadoop.security.authorization enabled. Seems like each service should have its own instance of a ServiceAuthorizationManager, instead of using static methods.

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