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Posted to dev@activemq.apache.org by "Sergey (JIRA)" <ji...@apache.org> on 2015/02/11 07:19:12 UTC

[jira] [Commented] (AMQ-1940) Negative queue size (reproducible)

    [ https://issues.apache.org/jira/browse/AMQ-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14315643#comment-14315643 ] 

Sergey  commented on AMQ-1940:
------------------------------

Still have this issue in 5.10.0. Moreover, sometime I can see number of pending messages groving, but if I try to browse queue, I see nothing there. I.e. this numbers are all wrong.

> Negative queue size (reproducible)
> ----------------------------------
>
>                 Key: AMQ-1940
>                 URL: https://issues.apache.org/jira/browse/AMQ-1940
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.2.0
>         Environment: Found on Windows but reproduced under Linux
>            Reporter: Vadim Chekan
>            Assignee: Rob Davies
>            Priority: Critical
>             Fix For: 5.3.0
>
>         Attachments: Main.java, Picture 6.png, QueuePurgeTest.java.diff.txt
>
>
> When you "purge" queue from web admin console, it zeroes queue message
> counter. But if you have an active consumer at that time which
> pre-fetched messages than your consumer will keep sending ack as it
> process messages from its buffer. ActiveMQ will keep decrement counter
> upon receiving each ack. So when consumer is done queue will show
> MINUS<consumer buffer size>.



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