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https://issues.apache.org/jira/browse/FLINK-21587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17295035#comment-17295035
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Guowei Ma commented on FLINK-21587:
-----------------------------------
https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=14079&view=logs&j=77a9d8e1-d610-59b3-fc2a-4766541e0e33&t=7c61167f-30b3-5893-cc38-a9e3d057e392
> FineGrainedSlotManagerTest.testNotificationAboutNotEnoughResources is unstable
> ------------------------------------------------------------------------------
>
> Key: FLINK-21587
> URL: https://issues.apache.org/jira/browse/FLINK-21587
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Coordination
> Affects Versions: 1.13.0
> Reporter: Robert Metzger
> Assignee: Yangze Guo
> Priority: Critical
> Labels: pull-request-available, test-stability
> Fix For: 1.13.0
>
>
> Happened in my WIP branch, but most likely unrelated to my change:
> https://dev.azure.com/rmetzger/Flink/_build/results?buildId=8925&view=logs&j=9dc1b5dc-bcfa-5f83-eaa7-0cb181ddc267&t=ab910030-93db-52a7-74a3-34a0addb481b
> Also note that the error is reproducable locally with DEBUG log level, but
> not with INFO:
> {code}
> [ERROR] Tests run: 12, Failures: 1, Errors: 0, Skipped: 0, Time elapsed:
> 2.169 s <<< FAILURE! - in
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest
> [ERROR]
> testNotificationAboutNotEnoughResources(org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest)
> Time elapsed: 0.029 s <<< FAILURE!
> java.lang.AssertionError:
> Expected: a collection with size <1>
> but: collection size was <0>
> at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
> at org.junit.Assert.assertThat(Assert.java:956)
> at org.junit.Assert.assertThat(Assert.java:923)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest$9.lambda$new$5(FineGrainedSlotManagerTest.java:548)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTestBase$Context.runTest(FineGrainedSlotManagerTestBase.java:197)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest$9.<init>(FineGrainedSlotManagerTest.java:521)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest.testNotificationAboutNotEnoughResources(FineGrainedSlotManagerTest.java:507)
> at
> org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManagerTest.testNotificationAboutNotEnoughResources(FineGrainedSlotManagerTest.java:493)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> {code}
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