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From Gary Tully <gary.tu...@gmail.com>
Subject Re: Messages lost when a broker forward messages to another broker
Date Wed, 03 Apr 2013 20:56:57 GMT
In 5.8 there is a sync send for all messages across the bridge, so they
wait for an send reply before acking. Prior to that non persistent messages
were sent async.


On 28 March 2013 12:16, miguelhenley <mhenley@datamag.com.br> wrote:

> I have configurated two brokers in a Wide Area Network: Brokers A and B.
> All
> messages sent to a queue in Broker A need to be forward to Broker B in
> order
> to be consumed by a consumer connected in Broker B. Broker A and Broker B
> are located in different geographic locations.
>
> This works fine but, for testing purposes, I created a producer to send a
> lot of messages to Broker A, let's say 1000 messages. I can see, via web
> console, the messages gradually arriving in Broker B. Before all messages
> arrive in Broker B, if I suddenly break the connection (let's say stopping
> Broker B) and, after that, restart broker B, I can see that the forward
> process continues - I mean Broker B continues to receive the messages.
> Unfortunatelly, some messages are lost (3 or 4 messages, for example). I
> know this beacause for each message sent to the queue by the proceducer, I
> have tagged it with a sequential number and put the sequence as a property
> in order to check it on the consumer side.
>
> I repeat this task sometimes to confirm and, unfortunatelly I lost some
> messages if I break a connection in broker B during the forward action.
>
> On the Broker A side, I have the following configuration inside the XML
> file:
>
> <networkConnectors>
>     <networkConnector
> uri=&quot;static:(tcp://&lt;&lt;IP-of-broker-B>>:61616)">
>         <staticallyIncludedDestinations>
>             <queue physicalName="MyQueue"/>
>         </staticallyIncludedDestinations>
>     </networkConnector>
> </networkConnectors>
>
> Do I have to configure anything else? I think that when the messages are
> forward, a transaction mechanism (between the brokers A and B) must be in
> place in order to avoid missing messages.
>
> Any help is much appreciate to solve this problem.
>
> Thanks,
> Miguel
>
>
>
>
> --
> View this message in context:
> http://activemq.2283324.n4.nabble.com/Messages-lost-when-a-broker-forward-messages-to-another-broker-tp4665250.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>



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http://blog.garytully.com

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