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From "Justin Reock (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMQ-5679) Wildcard Selector is Cached Against Virtual Topic when Browsing the Topic
Date Fri, 20 Mar 2015 13:51:38 GMT

    [ https://issues.apache.org/jira/browse/AMQ-5679?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14371298#comment-14371298
] 

Justin Reock commented on AMQ-5679:
-----------------------------------

It sure looks like it would be, thanks!  Apart from adding the cleanup period, etc, in AMQ-5672,
might that work also include being able to explicitly blacklist certain selectors?  The fix
for this scenario, in my mind, would be to have something in place that would allow me to
tell ActiveMQ to never cache a wildcard selector against the destination - but I could see
it being useful for arbitrary selectors as well.

> Wildcard Selector is Cached Against Virtual Topic when Browsing the Topic
> -------------------------------------------------------------------------
>
>                 Key: AMQ-5679
>                 URL: https://issues.apache.org/jira/browse/AMQ-5679
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.9.1
>         Environment: Any
>            Reporter: Justin Reock
>            Priority: Minor
>
> The fix for AMQ-4899 seems to have created an undesired side effect.  Because all consumer
selectors issued against a Virtual Topic are now cached, this means that even the Wildcard
selector used when browsing the Virtual Topic is cached as well.  This effectively nullifies
the selectorAware attribute of the Virtual Topic, as once the browse happens, every message
will be retained in the Topic, regardless of whether they match a desired consumer selector.
> To validate, create a selectorAware Virtual Topic and attach a consumer with a selector
active on the Topic.  Produce some messages which don't match the selector, and note that
they are properly discarded.  Then, browse the Virtual Topic using the web console, and produce
some messages that don't match the selector again.  They will be retained on the Virtual Topic.



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