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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