[YARN-1040] De-link container life cycle from an Allocation

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 3.0.0-alpha1
• Component/s: nodemanager
• Assignee: Unassigned
• Reporter: Steve Loughran
• Created: 07/Aug/13 17:31
• Updated: 30/Dec/17 23:41

Description

The AM should be able to exec >1 process in a container, rather than have the NM automatically release the container when the single process exits.

This would let an AM restart a process on the same container repeatedly, which for HBase would offer locality on a restarted region server.

We may also want the ability to exec multiple processes in parallel, so that something could be run in the container while a long-lived process was already running. This can be useful in monitoring and reconfiguring the long-lived process, as well as shutting it down.

Issue Links

• duplicates: YARN-1292 De-link container life cycle from the process it runs
• relates to: YARN-4726 [Umbrella] Allocation reuse for application upgrades