[YARN-5816] TestDelegationTokenRenewer#testCancelWithMultipleAppSubmissions is still flakey

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-beta1
• Component/s: resourcemanager, test
• Hadoop Flags: Reviewed
• Assignee: Robert Kanter
• Reporter: Daniel Templeton
• Created: 02/Nov/16 13:48
• Updated: 29/Aug/17 15:21
• Resolved: 29/Aug/17 15:03

Description

Even after YARN-5057, TestDelegationTokenRenewer#testCancelWithMultipleAppSubmissions is still flakey:

Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 2.796 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.resourcemanager.security.TestDelegationTokenRenewer
testCancelWithMultipleAppSubmissions(org.apache.hadoop.yarn.server.resourcemanager.security.TestDelegationTokenRenewer)  Time elapsed: 2.307 sec  <<< FAILURE!
java.lang.AssertionError: null
	at org.junit.Assert.fail(Assert.java:86)
	at org.junit.Assert.assertTrue(Assert.java:41)
	at org.junit.Assert.assertTrue(Assert.java:52)
	at org.apache.hadoop.yarn.server.resourcemanager.security.TestDelegationTokenRenewer.testCancelWithMultipleAppSubmissions(TestDelegationTokenRenewer.java:1260)

Note that it's the same error as YARN-5057, but on a different line.