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From "Bibin A Chundatt (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (YARN-6727) Improve getQueueUserAcls API to query for specific queue and user
Date Wed, 05 Jul 2017 10:41:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6727?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16074561#comment-16074561
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Bibin A Chundatt edited comment on YARN-6727 at 7/5/17 10:40 AM:
-----------------------------------------------------------------

Thank you [~sunilg] for explanation

{quote}
Is safer for CS as we lock with a readLock only in YarnAuthorizationProvider 
{quote}
+ queue level readlock

{quote}
Whichever user is passed with checkAccess at one point of time (from cli/api side or app submission
time etc) could be cached.
{quote}
Submission time QUEUE_SUBMIT right we could cache  but we need all .. am i missing something?

{quote}
Cache could be invalidated in cases here a config refresh happened for queues/acls or in similar
conditions.
{quote}

The ACL mapping will depend on user to group mapping also which gets refreshed  based in time
interval.
IIUC the refresh interval is about 5/10 min.We dont have direct update or notifier as of now.



was (Author: bibinchundatt):
Thank you [~sunilg] for explanation

{quote}
Is safer for CS as we lock with a readLock only in YarnAuthorizationProvider 
{quote}
+ queue level readlock

{quote}
Whichever user is passed with checkAccess at one point of time (from cli/api side or app submission
time etc) could be cached.
{quote}
Submission time QUEUE_SUBMIT right we could cache  but we need all .. am i missing something?

{quote}
Cache could be invalidated in cases here a config refresh happened for queues/acls or in similar
conditions.
{quote}

The ACL mapping will depend on user to group mapping also which gets refreshed  based in time
interval.
IIUC the refresh interval is about 5/10 min. I dont this we have direct update or notifier
as of now.


> Improve getQueueUserAcls API to query for  specific queue and user
> ------------------------------------------------------------------
>
>                 Key: YARN-6727
>                 URL: https://issues.apache.org/jira/browse/YARN-6727
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Bibin A Chundatt
>            Assignee: Bibin A Chundatt
>         Attachments: YARN-6727.WIP.patch
>
>
> Currently {{ApplicationClientProtocol#getQueueUserAcls}} return data for all the queues
available in scheduler for user.
> User wants to know whether he has rights of a particular queue only. For systems with
5K queues returning all queues list is not efficient.
> Suggested change: support additional parameters *userName and queueName* as optional.
Admin user should be able to query other users ACL for a particular queueName.



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