[HDFS-13975] TestBalancer#testMaxIterationTime fails sporadically

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.0
• Fix Version/s: 3.3.1, 3.4.0, 2.10.2, 3.2.3
• Component/s: balancer & mover, test
• Labels: flaky-test pull-request-available
• Target Version/s: 3.3.1, 3.4.0, 2.10.2, 3.2.3
• Hadoop Flags: Reviewed
• Assignee: Toshihiko Uchida
• Reporter: Jason Darrell Lowe
• Created: 08/Oct/18 20:44
• Updated: 16/Oct/24 18:30
• Resolved: 17/Mar/21 07:40

Description

A number of precommit builds have seen this test fail like this:

java.lang.AssertionError: Unexpected iteration runtime: 4021ms > 3.5s
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.assertTrue(Assert.java:41)
	at org.apache.hadoop.hdfs.server.balancer.TestBalancer.testMaxIterationTime(TestBalancer.java:1649)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:74)

Issue Links

• is caused by: HDFS-13174 hdfs mover -p /path times out after 20 min
• links to: GitHub Pull Request #2726