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From "Xuan Gong (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1459) Handle supergroups, usergroups and ACLs across RMs during failover
Date Wed, 05 Feb 2014 04:32:09 GMT

    [ https://issues.apache.org/jira/browse/YARN-1459?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13891697#comment-13891697
] 

Xuan Gong commented on YARN-1459:
---------------------------------

In this patch, we will make sure that we load the yarn-site.xml and core-site.xml from remoteDir
if configurationProvider is not LocalConfigurationProvider before we initiate the RM. The
scheduler#reinit() will make sure that it will load capacity-scheduler.xml from remoteDir
(Will take care of FS in https://issues.apache.org/jira/browse/YARN-1679). If the security
is enable, the AdminServicer, clientRMService, applicationMasterService and ResourceTrackerServicer#serviceInit()
can make sure that they will load the hadoop-policy.xml from remoteDir.

> Handle supergroups, usergroups and ACLs across RMs during failover
> ------------------------------------------------------------------
>
>                 Key: YARN-1459
>                 URL: https://issues.apache.org/jira/browse/YARN-1459
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.2.0
>            Reporter: Karthik Kambatla
>            Assignee: Xuan Gong
>         Attachments: YARN-1459.1.patch, YARN-1459.2.patch
>
>
> The supergroups, usergroups and ACL configurations are per RM and might have been changed
while the RM is running. After failing over, the new Active RM should have the latest configuration
from the previously Active RM.



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