[YARN-5362] TestRMRestart#testFinishedAppRemovalAfterRMRestart can fail

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Hadoop Flags: Reviewed
• Assignee: sandflee
• Reporter: Jason Darrell Lowe
• Created: 12/Jul/16 20:00
• Updated: 21/Nov/16 20:27
• Resolved: 13/Jul/16 13:48

Description

Saw the following in a precommit build that only changed an unrelated unit test:

Tests run: 29, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 101.265 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart
testFinishedAppRemovalAfterRMRestart(org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart)  Time elapsed: 0.411 sec  <<< FAILURE!
java.lang.AssertionError: expected null, but was:<org.apache.hadoop.yarn.server.resourcemanager.rmapp.RMAppImpl@70ebeeba>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotNull(Assert.java:664)
	at org.junit.Assert.assertNull(Assert.java:646)
	at org.junit.Assert.assertNull(Assert.java:656)
	at org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart.testFinishedAppRemovalAfterRMRestart(TestRMRestart.java:1653)