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Posted to dev@qpid.apache.org by "Pavel Moravec (JIRA)" <ji...@apache.org> on 2014/01/28 11:06:37 UTC

[jira] [Updated] (QPID-5519) ACL property/properties for paged queues

     [ https://issues.apache.org/jira/browse/QPID-5519?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavel Moravec updated QPID-5519:
--------------------------------

    Attachment: QPID-5519.patch

Attached patch sent to review (https://reviews.apache.org/r/17451/).

> 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
>         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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