[YARN-4623] TestSystemMetricsPublisher#testPublishAppAttemptMetricsForUnmanagedAM fails with NPE

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.3
• Fix Version/s: 2.7.3
• Component/s: yarn
• Target Version/s: 2.7.3
• Hadoop Flags: Reviewed
• Assignee: Naganarasimha G R
• Reporter: Jason Darrell Lowe
• Created: 21/Jan/16 14:39
• Updated: 25/Oct/19 20:25
• Resolved: 21/Jan/16 18:51

Description

testPublishAppAttemptMetricsForUnmanagedAM is failing with a NullPointerException on branch-2.7.

Running org.apache.hadoop.yarn.server.resourcemanager.metrics.TestSystemMetricsPublisher
Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 6.393 sec <<< FAILURE! - in org.apache.hadoop.yarn.server.resourcemanager.metrics.TestSystemMetricsPublisher
testPublishAppAttemptMetricsForUnmanagedAM(org.apache.hadoop.yarn.server.resourcemanager.metrics.TestSystemMetricsPublisher)  Time elapsed: 0.026 sec  <<< ERROR!
java.lang.NullPointerException: null
	at org.apache.hadoop.yarn.server.resourcemanager.metrics.SystemMetricsPublisher.appAttemptFinished(SystemMetricsPublisher.java:163)
	at org.apache.hadoop.yarn.server.resourcemanager.metrics.TestSystemMetricsPublisher.testPublishAppAttemptMetricsForUnmanagedAM(TestSystemMetricsPublisher.java:204)

Issue Links

• is broken by: YARN-4452 NPE when submit Unmanaged application
• is related to: YARN-2559 ResourceManager sometime become un-responsive due to NPE in SystemMetricsPublisher