Mikayla Konst created YARN-9106:
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Summary: Add option to graceful decommission to not wait for
applications
Key: YARN-9106
URL: https://issues.apache.org/jira/browse/YARN-9106
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Reporter: Mikayla Konst
Add property
yarn.resourcemanager.decommissioning-nodes-watcher.wait-for-applications.
If true (the default), the resource manager waits for all containers, as well
as all applications associated with those containers, to finish before
gracefully decommissioning a node.
If false, the resource manager only waits for containers, but not applications,
to finish. For map-only jobs or other jobs in which mappers do not need to
serve shuffle data, this allows nodes to be decommissioned as soon as their
containers are finished as opposed to when the job is done.
Add property
yarn.resourcemanager.decommissioning-nodes-watcher.wait-for-app-masters.
If false, during graceful decommission, when the resource manager waits for all
containers on a node to finish, it will not wait for app master containers to
finish. Defaults to true. This property should only be set to false if app
master failure is recoverable.
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