[YARN-4058] Miscellaneous issues in NodeManager project

• Type: Sub-task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: timelineserver
• Target Version/s: YARN-2928
• Hadoop Flags: Reviewed
• Assignee: Naganarasimha G R
• Reporter: Naganarasimha G R
• Created: 18/Aug/15 03:26
• Updated: 25/Oct/19 20:26
• Resolved: 25/Aug/15 00:38

Description

1. TestSystemMetricsPublisherForV2.testPublishApplicationMetrics is failing
2. In ContainerManagerImpl.startContainerInternal ApplicationImpl instance is created and then checked whether it exists in context.getApplications(). everytime ApplicationImpl is created state machine is intialized and TimelineClient is created which is required only if added to the context.
3. Remove unused imports in TimelineServiceV2Publisher & TestSystemMetricsPublisherForV2.java

Issue Links

• is related to: YARN-4073 Unused ApplicationACLsManager in ContainerManagerImpl