[FLINK-20428] ZooKeeperLeaderElectionConnectionHandlingTest.testConnectionSuspendedHandlingDuringInitialization failed with "No result is expected since there was no leader elected before stopping the server, yet"

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.13.0
• Fix Version/s: 1.12.1, 1.13.0
• Component/s: Runtime / Coordination
• Labels: pull-request-available test-stability
• Assignee: Yang Wang
• Reporter: Dian Fu
• Created: 01/Dec/20 01:26
• Updated: 02/Dec/20 15:31
• Resolved: 02/Dec/20 15:31

Description

https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=10327&view=logs&j=0da23115-68bb-5dcd-192c-bd4c8adebde1&t=05b74a19-4ee4-5036-c46f-ada307df6cf0

2020-11-30T13:22:47.5981970Z [ERROR] testConnectionSuspendedHandlingDuringInitialization(org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionConnectionHandlingTest)  Time elapsed: 2.16 s  <<< FAILURE!
2020-11-30T13:22:47.5984731Z java.lang.AssertionError: 
2020-11-30T13:22:47.5985220Z No result is expected since there was no leader elected before stopping the server, yet.
2020-11-30T13:22:47.5985546Z Expected: is null
2020-11-30T13:22:47.5985866Z      but: was <java.util.concurrent.CompletableFuture@53f3bdbd[Completed normally]>
2020-11-30T13:22:47.5986376Z 	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)
2020-11-30T13:22:47.5986752Z 	at org.junit.Assert.assertThat(Assert.java:956)
2020-11-30T13:22:47.5990853Z 	at org.apache.flink.runtime.leaderelection.ZooKeeperLeaderElectionConnectionHandlingTest.testConnectionSuspendedHandlingDuringInitialization(ZooKeeperLeaderElectionConnectionHandlingTest.java:106)

Issue Links

• links to: GitHub Pull Request #14268