[FLINK-34919] WebMonitorEndpointTest.cleansUpExpiredExecutionGraphs fails starting REST server

• Type: Bug
• Status: Open
• Priority: Critical
• Resolution: Unresolved
• Affects Version/s: 1.19.0, 1.20.0
• Component/s: Runtime / Coordination
• Labels: test-stability
• Assignee: Unassigned
• Reporter: Ryan Skraba
• Created: 22/Mar/24 11:07
• Updated: 16/Apr/24 10:06

Description

https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=58482&view=logs&j=77a9d8e1-d610-59b3-fc2a-4766541e0e33&t=125e07e7-8de0-5c6c-a541-a567415af3ef&l=8641

Mar 22 04:12:50 04:12:50.260 [INFO] Running org.apache.flink.runtime.webmonitor.WebMonitorEndpointTest
Mar 22 04:12:50 04:12:50.609 [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.318 s <<< FAILURE! -- in org.apache.flink.runtime.webmonitor.WebMonitorEndpointTest
Mar 22 04:12:50 04:12:50.609 [ERROR] org.apache.flink.runtime.webmonitor.WebMonitorEndpointTest.cleansUpExpiredExecutionGraphs -- Time elapsed: 0.303 s <<< ERROR!
Mar 22 04:12:50 java.net.BindException: Could not start rest endpoint on any port in port range 8081
Mar 22 04:12:50 	at org.apache.flink.runtime.rest.RestServerEndpoint.start(RestServerEndpoint.java:286)
Mar 22 04:12:50 	at org.apache.flink.runtime.webmonitor.WebMonitorEndpointTest.cleansUpExpiredExecutionGraphs(WebMonitorEndpointTest.java:69)
Mar 22 04:12:50 	at java.lang.reflect.Method.invoke(Method.java:498)
Mar 22 04:12:50 	at java.util.concurrent.RecursiveAction.exec(RecursiveAction.java:189)
Mar 22 04:12:50 	at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
Mar 22 04:12:50 	at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
Mar 22 04:12:50 	at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
Mar 22 04:12:50 	at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:175)
Mar 22 04:12:50  

This was noted as a symptom of FLINK-22980, but doesn't have the same failure.