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Subject: Re: Messages lost when a broker forward messages to another broker
From: Johan Edstrom <johan.edstrom@acj-consulting.com>
In-Reply-To: 
 <CAKS7T5MCPq9C5wmEoKR53=J+o8A3z+R4JOY1ZxY40-QF_Q011g@mail.gmail.com>
Date: Fri, 29 Mar 2013 10:27:01 -0600
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References: <1364473015563-4665250.post@n4.nabble.com>
 <CAKS7T5MCPq9C5wmEoKR53=J+o8A3z+R4JOY1ZxY40-QF_Q011g@mail.gmail.com>
To: users@activemq.apache.org

Define what breaking means too?
Are you for example multi-threading AUTO-ACKED clients and=20
don't deal correctly with exceptions?


On Mar 29, 2013, at 10:24 AM, Christian Posta =
<christian.posta@gmail.com> wrote:

> Are the messages that are supposed to be forwarded sent persistent by =
the
> original producer?
>=20
>=20
> On Thu, Mar 28, 2013 at 5:16 AM, miguelhenley =
<mhenley@datamag.com.br>wrote:
>=20
>> 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.
>>=20
>> 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.
>>=20
>> 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.
>>=20
>> On the Broker A side, I have the following configuration inside the =
XML
>> file:
>>=20
>> <networkConnectors>
>>    <networkConnector
>> uri=3D&quot;static:(tcp://&lt;&lt;IP-of-broker-B>>:61616)">
>>        <staticallyIncludedDestinations>
>>            <queue physicalName=3D"MyQueue"/>
>>        </staticallyIncludedDestinations>
>>    </networkConnector>
>> </networkConnectors>
>>=20
>> 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.
>>=20
>> Any help is much appreciate to solve this problem.
>>=20
>> Thanks,
>> Miguel
>>=20
>>=20
>>=20
>>=20
>> --
>> 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.
>>=20
>=20
>=20
>=20
> --=20
> *Christian Posta*
> http://www.christianposta.com/blog
> twitter: @christianposta