[FLINK-8783] Test instability SlotPoolRpcTest.testExtraSlotsAreKept

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 1.5.0
• Fix Version/s: 1.5.0
• Component/s: Tests
• Assignee: Till Rohrmann
• Reporter: Gary Yao
• Created: 26/Feb/18 14:25
• Updated: 15/Mar/18 16:49
• Resolved: 13/Mar/18 07:16

Description

https://travis-ci.org/GJL/flink/jobs/346206290
 

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)

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

commit: eeac022f0538e0979e6ad4eb06a2d1031cbd0146

Issue Links

• links to: GitHub Pull Request #5684