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Posted to dev@activemq.apache.org by "Vadim Chekan (JIRA)" <ji...@apache.org> on 2008/09/17 09:17:52 UTC
[jira] Updated: (AMQ-1940) Negative queue size (reproducible)
[ https://issues.apache.org/activemq/browse/AMQ-1940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vadim Chekan updated AMQ-1940:
------------------------------
Attachment: Main.java
Attached program reproduces a queue with -100 messages.
> Negative queue size (reproducible)
> ----------------------------------
>
> Key: AMQ-1940
> URL: https://issues.apache.org/activemq/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
> Priority: Critical
> Attachments: Main.java
>
>
> 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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