Arun Suresh created YARN-6979:
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Summary: Add flag to allow all container updates to be initiated
via NodeHeartbeatResponse
Key: YARN-6979
URL: https://issues.apache.org/jira/browse/YARN-6979
Project: Hadoop YARN
Issue Type: Sub-task
Reporter: Arun Suresh
Assignee: kartheek muthyala
Currently, only the Container Resource increase command is sent to the NM via
NodeHeartbeat response. This JIRA proposes to add a flag in the RM to allow ALL
container updates (increase, decrease, promote and demote) to initiated via
node HB.
The AM is still free to use the ContainerManagementPrototol's
{{updateContainer}} API in cases where for instance, the Node HB is frequency
is very low and the AM needs to update the container as soon as possible. In
these situations, if the Node HB arrives before the updateContainer API call,
the call would error out, due to a version mismatch and the AM is required to
handle it.
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