[YARN-5257] Fix unreleased resources and null dereferences

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.9.0
• Fix Version/s: 2.9.0, 3.0.0-alpha2
• Hadoop Flags: Reviewed
• Assignee: Yufei Gu
• Reporter: Yufei Gu
• Created: 15/Jun/16 21:55
• Updated: 28/Dec/16 17:54
• Resolved: 27/Dec/16 22:18

Description

The following code contain potential problems:

Unreleased Resource: Streams	TopCLI.java:738
Unreleased Resource: Streams	Graph.java:189
Unreleased Resource: Streams	CgroupsLCEResourcesHandler.java:291
Unreleased Resource: Streams	UnmanagedAMLauncher.java:195
Unreleased Resource: Streams	CGroupsHandlerImpl.java:319
Unreleased Resource: Streams	TrafficController.java:629
Null Dereference	ApplicationImpl.java:465
Null Dereference	VisualizeStateMachine.java:52
Null Dereference	ContainerImpl.java:1089
Null Dereference	QueueManager.java:219
Null Dereference	QueueManager.java:232
Null Dereference	ResourceLocalizationService.java:1016
Null Dereference	ResourceLocalizationService.java:1023
Null Dereference	ResourceLocalizationService.java:1040
Null Dereference	ResourceLocalizationService.java:1052
Null Dereference	ProcfsBasedProcessTree.java:802
Null Dereference	TimelineClientImpl.java:639
Null Dereference	LocalizedResource.java:206

Issue Links

• is depended upon by: HADOOP-13279 Fix all Bad Practices