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Date: Thu, 24 Feb 2011 22:18:38 +0000 (UTC)
From: "Timothy Bish (JIRA)" <jira@apache.org>
To: dev@activemq.apache.org
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 <18511823.14662.1298585918523.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] Closed: (AMQ-2218) Message delivery to consumer eventually
 pauses if consumer publishes to the same queue it receives from
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     [ https://issues.apache.org/jira/browse/AMQ-2218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Timothy Bish closed AMQ-2218.
-----------------------------

    Resolution: Not A Problem

Test case is trigger producer flow control, see.
http://activemq.apache.org/producer-flow-control.htm

> Message delivery to consumer eventually pauses if consumer publishes to the same queue it receives from
> -------------------------------------------------------------------------------------------------------
>
>                 Key: AMQ-2218
>                 URL: https://issues.apache.org/jira/browse/AMQ-2218
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.3.0
>         Environment: Windows XP Professional 2002, Service Pack 2,  Intel Pentium D 3ghz, various 1.5 and 1.6 versions of jdk
>            Reporter: Jar Lyons
>             Fix For: 5.5.0
>
>         Attachments: EchoConsumerLoadTest.java
>
>
> I have written a test case which will demonstrate the following scenarios:
> 1. Simple producer driving a queue, simple consumer pulling from the queue.
> 2. Simple producer driving a queue, simple consumer pulling from the queue and producing an echo of the original message into the same queue.
> Expected: message delivery should not be interrupted.
> Actual: in scenario 2, eventually (about 500k messages in my environment), the delivery is halted to the consumer.
> Test Output:
> waiting for consumer to pause ... consumer: 0, producer: 0
> waiting for consumer to pause ... consumer: 3738, producer: 29796
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841
> waiting for consumer to pause ... consumer: 9224, producer: 67841

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