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Type:
New Feature
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Status: Open
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Priority:
Major
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Resolution: Unresolved
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Affects Version/s: 3.0.0-alpha1
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Fix Version/s: None
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Component/s: nodemanager
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Labels:None
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.