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From "Albert Strasheim (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AMQ-1136) Slow consumer causes producer to block on UsageManager.waitForSpace indefinately
Date Tue, 12 Jun 2007 11:04:33 GMT

    [ https://issues.apache.org/activemq/browse/AMQ-1136?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_39305
] 

Albert Strasheim commented on AMQ-1136:
---------------------------------------

The test inside SlowReceive3.zip passes now. I'd like to know what changed, though. How did
you manage to fix this issue without running this test?

Anyway, I'll test AMQ-1148 next, which is probably a related problem.

> Slow consumer causes producer to block on UsageManager.waitForSpace indefinately
> --------------------------------------------------------------------------------
>
>                 Key: AMQ-1136
>                 URL: https://issues.apache.org/activemq/browse/AMQ-1136
>             Project: ActiveMQ
>          Issue Type: Bug
>    Affects Versions: 5.0.0
>            Reporter: Albert Strasheim
>         Attachments: ActiveMqBrokerThreadDump.txt, SlowReceive.zip, SlowReceive2.zip,
SlowReceive3.zip
>
>
> The issue is described in this thread:
> http://www.nabble.com/Blocking-on-UsageManager.waitForSpace-again-tf3031460.html
> Basically, a slow consumer can cause a producer to block on UsageManager.waitForSpace
indefinately.
> A basic code sample to reproduce the problem is provided here:
> http://www.nabble.com/Re%3A-Blocking-on-UsageManager.waitForSpace-again-p8521205.html
> Note that the reproducibility of the bug depends on the initial and maximum size of the
VM's heap.

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