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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-913) Add a way to register long-lived services in a YARN cluster
Date Wed, 01 Oct 2014 20:52:39 GMT

     [ https://issues.apache.org/jira/browse/YARN-913?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated YARN-913:
--------------------------------
    Attachment: YARN-913-016.patch

patch -016: includes registry cli patch (-002) of YARN-2616

> Add a way to register long-lived services in a YARN cluster
> -----------------------------------------------------------
>
>                 Key: YARN-913
>                 URL: https://issues.apache.org/jira/browse/YARN-913
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: api, resourcemanager
>    Affects Versions: 2.5.0, 2.4.1
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>         Attachments: 2014-09-03_Proposed_YARN_Service_Registry.pdf, 2014-09-08_YARN_Service_Registry.pdf,
RegistrationServiceDetails.txt, YARN-913-001.patch, YARN-913-002.patch, YARN-913-003.patch,
YARN-913-003.patch, YARN-913-004.patch, YARN-913-006.patch, YARN-913-007.patch, YARN-913-008.patch,
YARN-913-009.patch, YARN-913-010.patch, YARN-913-011.patch, YARN-913-012.patch, YARN-913-013.patch,
YARN-913-014.patch, YARN-913-015.patch, YARN-913-016.patch, yarnregistry.pdf, yarnregistry.tla
>
>
> In a YARN cluster you can't predict where services will come up -or on what ports. The
services need to work those things out as they come up and then publish them somewhere.
> Applications need to be able to find the service instance they are to bond to -and not
any others in the cluster.
> Some kind of service registry -in the RM, in ZK, could do this. If the RM held the write
access to the ZK nodes, it would be more secure than having apps register with ZK themselves.



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