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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-6979) Add flag to allow all container updates to be initiated via NodeHeartbeatResponse
Date Wed, 09 Aug 2017 22:50:00 GMT
Arun Suresh created YARN-6979:
---------------------------------

             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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