Subru Krishnan created YARN-3828:
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Summary: Add a flag in container to indicate whether it's an AM
container or not
Key: YARN-3828
URL: https://issues.apache.org/jira/browse/YARN-3828
Project: Hadoop YARN
Issue Type: Sub-task
Components: nodemanager, resourcemanager
Reporter: Subru Krishnan
Assignee: Giovanni Matteo Fumarola
YARN-2022 adds a flag in RMContainer to indicate whether the container is an AM
or not to skip pre-emption of AM containers. This JIRA proposes propagating
this information to NMs as it's required by the AMRMProxy (YARN-2884/YARN-3666)
to identify if the container is an AM for:
1) Security - for authorizing only AMs to communicate with RMs. For e.g.: this
is useful to prevent DDos attacks by all containers of a malicious app.
2) Federation - to allow for transparently spanning an app across multiple
sub-clusters
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