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Date: Tue, 12 Sep 2017 21:10:02 +0000 (UTC)
From: "Grant Sohn (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13099118.1504228591000.95436.1505250602817@Atlassian.JIRA>
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Subject: [jira] [Commented] (YARN-7146) Many RM unit tests failing with
 FairScheduler
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archived-at: Tue, 12 Sep 2017 21:10:13 -0000


    [ https://issues.apache.org/jira/browse/YARN-7146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16163660#comment-16163660 ] 

Grant Sohn commented on YARN-7146:
----------------------------------

+1 (non-binding) LGTM.

> Many RM unit tests failing with FairScheduler
> ---------------------------------------------
>
>                 Key: YARN-7146
>                 URL: https://issues.apache.org/jira/browse/YARN-7146
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 3.0.0-beta1
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>         Attachments: YARN-7146.001.patch, YARN-7146.002.patch, YARN-7146.003.patch, YARN-7146.004.patch
>
>
> Many of the RM unit tests are failing when using the FairScheduler.  
> Here is a list of affected test classes:
> {noformat}
> TestYarnClient
> TestApplicationCleanup
> TestApplicationMasterLauncher
> TestDecommissioningNodesWatcher
> TestKillApplicationWithRMHA
> TestNodeBlacklistingOnAMFailures
> TestRM
> TestRMAdminService
> TestRMRestart
> TestResourceTrackerService
> TestWorkPreservingRMRestart
> TestAMRMRPCNodeUpdates
> TestAMRMRPCResponseId
> TestAMRestart
> TestApplicationLifetimeMonitor
> TestNodesListManager
> TestRMContainerImpl
> TestAbstractYarnScheduler
> TestSchedulerUtils
> TestFairOrderingPolicy
> TestAMRMTokens
> TestDelegationTokenRenewer
> {noformat}
> Most of the test methods in these classes are failing, though some do succeed.
> There's two main categories of issues:
> # The test submits an application to the {{MockRM}} and waits for it to enter a specific state, which it never does, and the test times out.  We need to call {{update()}} on the scheduler.
> # The test throws a {{ClassCastException}} on {{FSQueueMetrics}} to {{CSQueueMetrics}}.  This is because {{QueueMetrics}} metrics are static, and a previous test using FairScheduler initialized it, and the current test is using CapacityScheduler.  We need to reset the metrics.


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