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https://issues.apache.org/jira/browse/YARN-5973?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dibyendu Karmakar reassigned YARN-5973:
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Assignee: Dibyendu Karmakar
> TestCapacitySchedulerSurgicalPreemption sometimes fails
> -------------------------------------------------------
>
> Key: YARN-5973
> URL: https://issues.apache.org/jira/browse/YARN-5973
> Project: Hadoop YARN
> Issue Type: Bug
> Components: capacity scheduler, scheduler preemption
> Affects Versions: 2.8.0
> Reporter: Eric Payne
> Assignee: Dibyendu Karmakar
> Priority: Minor
> Attachments: YARN-5973-branch-2.8.0.001.patch
>
>
> The tests in {{TestCapacitySchedulerSurgicalPreemption}} appear to be racy.
> They often pass, but the following errors sometimes occur:
> {noformat}
> testSimpleSurgicalPreemption(org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerSurgicalPreemption)
> Time elapsed: 14.671 sec <<< FAILURE!
> java.lang.AssertionError: null
> at org.junit.Assert.fail(Assert.java:86)
> at org.junit.Assert.fail(Assert.java:95)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacitySchedulerPreemptionTestBase.waitNumberOfLiveContainersFromApp(CapacitySchedulerPreemptionTestBase.java:110)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerSurgicalPreemption.testSimpleSurgicalPreemption(TestCapacitySchedulerSurgicalPreemption.java:143)
> {noformat}
> {noformat}
> testSurgicalPreemptionWithAvailableResource(org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerSurgicalPreemption)
> Time elapsed: 9.503 sec <<< FAILURE!
> java.lang.AssertionError: expected:<3> but was:<2>
> at org.junit.Assert.fail(Assert.java:88)
> at org.junit.Assert.failNotEquals(Assert.java:743)
> at org.junit.Assert.assertEquals(Assert.java:118)
> at org.junit.Assert.assertEquals(Assert.java:555)
> at org.junit.Assert.assertEquals(Assert.java:542)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestCapacitySchedulerSurgicalPreemption.testSurgicalPreemptionWithAvailableResource(TestCapacitySchedulerSurgicalPreemption.java:220)
> {noformat}
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