[jira] [Created] (FLINK-8783) Test instability SlotPoolRpcTest.testExtraSlotsAreKept

[Shang Yuanchun (Jira)]

Gary Yao created FLINK-8783:
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             Summary: Test instability SlotPoolRpcTest.testExtraSlotsAreKept
                 Key: FLINK-8783
                 URL: https://issues.apache.org/jira/browse/FLINK-8783
             Project: Flink
          Issue Type: Bug
          Components: Tests
    Affects Versions: 1.5.0
            Reporter: Gary Yao


[https://travis-ci.org/GJL/flink/jobs/346206290]
 {noformat}
Tests run: 5, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.784 sec <<< FAILURE! - in org.apache.flink.runtime.jobmaster.slotpool.SlotPoolRpcTest
testExtraSlotsAreKept(org.apache.flink.runtime.jobmaster.slotpool.SlotPoolRpcTest) Time elapsed: 0.016 sec <<< FAILURE!
java.lang.AssertionError: expected:<0> but was:<1>
 at org.junit.Assert.fail(Assert.java:88)
 at org.junit.Assert.failNotEquals(Assert.java:834)
 at org.junit.Assert.assertEquals(Assert.java:645)
 at org.junit.Assert.assertEquals(Assert.java:631)
 at org.apache.flink.runtime.jobmaster.slotpool.SlotPoolRpcTest.testExtraSlotsAreKept(SlotPoolRpcTest.java:267)
{noformat}

I reproduced this in IntelliJ by configuring 50 consecutive runs of {{testExtraSlotsAreKept}}. On my machine the 8th execution fails sporadically.

commit: eeac022f0538e0979e6ad4eb06a2d1031cbd0146



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