[YARN-5438] TimelineClientImpl leaking FileSystem Instances causing Long running services like HiverServer2 daemon going OOM

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8.0, 2.7.3
• Fix Version/s: 2.8.0, 3.0.0-alpha1
• Component/s: timelineserver
• Hadoop Flags: Reviewed
• Assignee: Rohith Sharma K S
• Reporter: Karam Singh
• Created: 27/Jul/16 16:28
• Updated: 30/Aug/16 00:59
• Resolved: 28/Jul/16 21:53

Description

TimelineClientImpl leaking FileSystem Instances causing Long running services like HiverServer2 daemon going OOM

In org.apache.hadoop.yarn.client.api.impl.TimelineClientImpl, FileSystem.newInstance is invoked and is not closed. Causing over time Filesystem instances getting accumulated in long runninh Client (like Hiveserver2), finally causing them to OOM