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https://issues.apache.org/jira/browse/YARN-10110?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17027301#comment-17027301
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Prabhu Joseph commented on YARN-10110:
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[~BilwaST] Thanks for the patch.
1. In RouterPolicyProvider.java, the field {{routerPolicyProvider}} needs to be
volatile.
Reference: [https://www.baeldung.com/java-singleton-double-checked-locking]
2. ClientRMService, ApplicationMasterService , ResourceTrackerService and
AdminService all reuses the RMPolicyProvider. I think RouterClientRMService can
also use the same RMPolicyProvider.
3. Can you include a test case as well, if not, Please justify why no new tests
are needed for this patch.
> In Federation Secure cluster Application submission fails when authorization
> is enabled
> ---------------------------------------------------------------------------------------
>
> Key: YARN-10110
> URL: https://issues.apache.org/jira/browse/YARN-10110
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Sushanta Sen
> Assignee: Bilwa S T
> Priority: Blocker
> Attachments: YARN-10110.001.patch
>
>
> 【Precondition】：
> 1. Secure Federated cluster is available
> 2. Add the below configuration in Router and client core-site.xml
> hadoop.security.authorization= true
> 3. Restart the router service
> 【Test step】：
> 1. Go to router client bin path and submit a MR PI job
> 2. Observe the client console screen
> 【Expect Output】：
> No error should be thrown and Job should be successful
> 【Actual Output】：
> Job failed prompting "Protocol interface
> org.apache.hadoop.yarn.api.ApplicationClientProtocolPB is not known.,"
> 【Additional Note】:
> But on setting the parameter as false, job is submitted and success.
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