Sandy Ryza created YARN-170:
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Summary: NodeManager stop() gets called twice on shutdown
Key: YARN-170
URL: https://issues.apache.org/jira/browse/YARN-170
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.0.2-alpha
Reporter: Sandy Ryza
Assignee: Sandy Ryza
The stop method in the NodeManager gets called twice when the NodeManager is shut down via
the shutdown hook.
The first is the stop that gets called directly by the shutdown hook. The second occurs when
the NodeStatusUpdaterImpl is stopped. The NodeManager responds to the NodeStatusUpdaterImpl
stop stateChanged event by stopping itself. This is so that NodeStatusUpdaterImpl can notify
the NodeManager to stop, by stopping itself in response to a request from the ResourceManager
This could be avoided if the NodeStatusUpdaterImpl were to stop the NodeManager by calling
its stop method directly.
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