[YARN-5859] TestResourceLocalizationService#testParallelDownloadAttemptsForPublicResource sometimes fails

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.8.0, 3.0.0-alpha2
• Component/s: test
• Hadoop Flags: Reviewed
• Assignee: Eric Badger
• Reporter: Jason Darrell Lowe
• Created: 08/Nov/16 21:55
• Updated: 21/Nov/16 17:00
• Resolved: 21/Nov/16 16:41

Description

Saw the following test failure:

Running org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService
Tests run: 14, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 12.011 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService
testParallelDownloadAttemptsForPublicResource(org.apache.hadoop.yarn.server.nodemanager.containermanager.localizer.TestResourceLocalizationService)  Time elapsed: 0.586 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.nodemanager.containermanager.localizer.TestResourceLocalizationService.testParallelDownloadAttemptsForPublicResource(TestResourceLocalizationService.java:2108)

The assert occurred at this place in the code:

      // Waiting for download to start.
      Assert.assertTrue(waitForPublicDownloadToStart(spyService, 1, 200));