[jira] [Reopened] (YARN-7146) Many RM unit tests failing with FairScheduler

["Robert Kanter (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-7146?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Robert Kanter reopened YARN-7146:
---------------------------------

Reopening for branch-2 version of the patch

> 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
>             Fix For: 3.0.0-beta1, 3.1.0
>
>         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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