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From "Timothy Bish (Updated) (JIRA)" <>
Subject [jira] [Updated] (AMQ-2780) ActiveMQ not preserving Message Order
Date Wed, 05 Oct 2011 22:20:29 GMT


Timothy Bish updated AMQ-2780:


Attempt at creating a unit test that reproduces the issue using the supplied code as a starting
point.  Could not reproduce.
> ActiveMQ not preserving Message Order
> -------------------------------------
>                 Key: AMQ-2780
>                 URL:
>             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:,,,
> 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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