[YARN-6359] TestRM#testApplicationKillAtAcceptedState fails rarely due to race condition

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0, 3.0.0-alpha4
• Fix Version/s: 2.9.0, 3.0.0-alpha4, 2.8.2
• Component/s: test
• Target Version/s: 2.9.0, 3.0.0-alpha4
• Hadoop Flags: Reviewed
• Assignee: Robert Kanter
• Reporter: Robert Kanter
• Created: 16/Mar/17 23:08
• Updated: 07/Jun/17 21:40
• Resolved: 28/Mar/17 14:56

Description

We've seen (very rarely) a test failure in TestRM#testApplicationKillAtAcceptedState

java.lang.AssertionError: expected:<1> but was:<0>
	at org.junit.Assert.fail(Assert.java:88)
	at org.junit.Assert.failNotEquals(Assert.java:743)
	at org.junit.Assert.assertEquals(Assert.java:118)
	at org.junit.Assert.assertEquals(Assert.java:555)
	at org.junit.Assert.assertEquals(Assert.java:542)
	at org.apache.hadoop.yarn.server.resourcemanager.TestRM.testApplicationKillAtAcceptedState(TestRM.java:645)