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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (YARN-3418) AM to be able to set/update web URL and IPC ports post-registration
Date Mon, 05 Mar 2018 10:21:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-3418?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Rohith Sharma K S reassigned YARN-3418:
---------------------------------------

    Assignee:     (was: Rohith Sharma K S)

> AM to be able to set/update web URL and IPC ports post-registration
> -------------------------------------------------------------------
>
>                 Key: YARN-3418
>                 URL: https://issues.apache.org/jira/browse/YARN-3418
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 2.8.0
>            Reporter: Steve Loughran
>            Priority: Major
>
> Currently the AM can only set the IPC and HTTP(s) ports on AM registration.
> This
> # creates a possible race condition: the IPC and HTTP ports need to come up before the
app is fully initialised. This is particularly true on work-preserving AM restarts, as the
AM will depend on the list of containers supplied during registration to build its internal
state. 
> # prevents the AM from changing these values dynamically during application execution.
This matters if the Web or IPC services are hosted not in the AM, but in a deployed container.
If the container is restarted, there's no way to rebind the services. 
> A new AM-RM IPC call to publish updated binding information is needed.



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