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From "Gary Tully (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (AMQ-2923) Clients are sent messages out of producer-order
Date Mon, 04 Jul 2011 16:10:22 GMT

     [ https://issues.apache.org/jira/browse/AMQ-2923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gary Tully resolved AMQ-2923.
-----------------------------

       Resolution: Not A Problem
    Fix Version/s: 5.6.0

updated the doc: Message Ordering https://cwiki.apache.org/confluence/display/ACTIVEMQ/Stomp
to reflect the possibility of order inversion from a stomp client perspective. Ordering is
based on the producer id generated at connection time.

> Clients are sent messages out of producer-order
> -----------------------------------------------
>
>                 Key: AMQ-2923
>                 URL: https://issues.apache.org/jira/browse/AMQ-2923
>             Project: ActiveMQ
>          Issue Type: Bug
>          Components: Broker
>    Affects Versions: 5.4.0, 5.4.1, 5.4.2
>         Environment: Ubuntu 10.04.
>            Reporter: James Green
>            Assignee: Gary Tully
>            Priority: Critical
>             Fix For: 5.6.0
>
>         Attachments: amq.gif, stomp.log
>
>
> On a single host:
> Producer P1 posts message M1 to Queue Q.
> Producer P2 posts message M2 to Queue Q a few seconds later.
> Consumer C1 comes a few seconds further along along and begins reading from Queue Q.
Occassionally, C1 receives M2 before M1.
> This is what I'm seeing in two PHP application connecting to ActiveMQ via STOMP. After
dozens of tests I've finally reproduced it with trace=true. I am not sure what environmental
conditions cause this to occur.
> I will attach a log. Watch for destination:/queue/Outbound.Account.200000 which is Q.
M1 has a reason="MJINITIALSTATE" and M2 has a reason="E----:Confirmed..."

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