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https://issues.apache.org/jira/browse/YARN-3100?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306937#comment-14306937
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Chris Douglas commented on YARN-3100:
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bq. I'm not sure if I get your point, the DefaultYarnAuthorizer currently uses
a concurrentHashMap to store the acls, setPermission is currently used on queue
initialization. So I think lock on setPermission is not needed ?
Could the RM be in a state where the old version of ACLs are applied to one
queue, but a new version is applied to another (a client observes the new ACLs
while they're being installed)? I think this is true of scenarios where
{{refreshQueues()}} fails, but I don't know if intermediate states are
observable.
> Make YARN authorization pluggable
> ---------------------------------
>
> Key: YARN-3100
> URL: https://issues.apache.org/jira/browse/YARN-3100
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jian He
> Assignee: Jian He
> Attachments: YARN-3100.1.patch, YARN-3100.2.patch
>
>
> The goal is to have YARN acl model pluggable so as to integrate other
> authorization tool such as Apache Ranger, Sentry.
> Currently, we have
> - admin ACL
> - queue ACL
> - application ACL
> - time line domain ACL
> - service ACL
> The proposal is to create a YarnAuthorizationProvider interface. Current
> implementation will be the default implementation. Ranger or Sentry plug-in
> can implement this interface.
> Benefit:
> - Unify the code base. With the default implementation, we can get rid of
> each specific ACL manager such as AdminAclManager, ApplicationACLsManager,
> QueueAclsManager etc.
> - Enable Ranger, Sentry to do authorization for YARN.
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