[YARN-494] RM should be able to hard stop a lingering app on a NM

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.23.3, 2.0.0-alpha, 3.0.0-alpha1
• Component/s: nodemanager, resourcemanager
• Target Version/s: 2.1.0-beta
• Assignee: Unassigned
• Reporter: Daryn Sharp
• Created: 21/Mar/13 17:51
• Updated: 12/May/16 18:29

Description

It's possible for a NM to "leak" applications that the RM believes have finished. This currently tends to happen when a lingering app jams in log aggregation or misses the notification to begin aggregation.

Until aggregation completes, the NMs send app keepalive requests to the RM so it continues renewing the app's tokens. This could be extend to allow the RM to send a hard stop to a NM for an app that has been running for a configurable interval of time after the app has finished.