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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (QPID-5519) ACL property/properties for paged queues
Date Mon, 03 Feb 2014 13:00:10 GMT

    [ https://issues.apache.org/jira/browse/QPID-5519?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13889448#comment-13889448
] 

ASF subversion and git services commented on QPID-5519:
-------------------------------------------------------

Commit 1563866 from [~pmoravec] in branch 'qpid/trunk'
[ https://svn.apache.org/r1563866 ]

QPID-5519: ACL property/properties for paged queues - fixed typo, added tests and documentation

> ACL property/properties for paged queues
> ----------------------------------------
>
>                 Key: QPID-5519
>                 URL: https://issues.apache.org/jira/browse/QPID-5519
>             Project: Qpid
>          Issue Type: Improvement
>          Components: C++ Broker
>    Affects Versions: 0.24
>            Reporter: Pavel Moravec
>            Assignee: Pavel Moravec
>            Priority: Minor
>              Labels: improvement, patch
>             Fix For: 0.27
>
>         Attachments: QPID-5519.patch
>
>
> Description of problem:
> QPID-4339 adds paged queue but there is no corresponding ACL rule/property limiting users
in creating paged queues. As from system management point of view, a paged queue (being backed
up by a physical file) is very similar to a durable queue.
> Therefore ACL should have property "paging=true" / "paging=false" in create queue rule.
Additionally, it has some (limited) sense to have limits for max_pages_loaded and page_factor
attributes. Those limits:
> - could limit memory usage (if the property would compare max_pages_loaded*page_factor)
> - could limit maximal message size to be successfully enqueued (page_factor) - though
I dont see a big value of such ACL limit; please provide a business justification if there
is
> - could _indirectly_ limit maximal size of the underlying file (that upper limit is 
 page_factor*value_of_(/proc/sys/vm/max_map_count)  ) - as max_map_count is usually high,
it is less usefull
> Version-Release number of selected component (if applicable):
> any (incl. qpid 0.26)
> How reproducible:
> 100%
> Steps to Reproduce:
> any user can run:
> qpid-config add queue my-paged-queue --argument qpid.paging=True --argument qpid.max_pages_loaded=10000
--argument qpid.page_factor=10000
> Actual results:
> Any user can create paged queue of arbitrary parameters (paged queue related).
> Expected results:
> ACL parameters could prevent so.



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