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https://issues.apache.org/jira/browse/AMQ-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13058872#comment-13058872
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Ryan Rolland commented on AMQ-2780:
-----------------------------------
>From the following doc:
http://activemq.apache.org/how-do-i-preserve-order-of-messages.html
Seems to imply that ActiveMQ does preserve message order? I was not processing
based on priority from what I recall... just trying to get the messages
received in the order they were sent.
Should your docs be updated to state that you do not preserve message order
(best attempt) or am I not understanding something?
> ActiveMQ not preserving Message Order
> -------------------------------------
>
> Key: AMQ-2780
> URL: https://issues.apache.org/jira/browse/AMQ-2780
> Project: ActiveMQ
> Issue Type: Bug
> Affects Versions: 5.3.0
> Environment: Windows XP, JDK 1.6.0_07
> Reporter: Ryan Rolland
> Assignee: Rob Davies
> Priority: Critical
> Fix For: 5.6.0
>
> Attachments: BenchmarkSupport.java, Consumer.java, Producer.java
>
>
> I believe I have found a bug in message order delivery in ActiveMQ. I have
> taken the example benchmark consumer and producer programs and made the
> following modifications:
> 1) Added a counter to keep track manually of the message order.
> 2) Made the transmitted number of bytes per message random between 1 and
> 64 bytes.
> 3) Added a random delay between 1 and 10 seconds triggered after every
> 100000 messages transferred on the publishing side.
> After running for a few minutes I begin to see violations in the message
> delivery order. In my most recent run I have counted 54 violations over the
> course of an hour.
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