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From Claus Ibsen <claus.ib...@gmail.com>
Subject Re: How to control transactions when already in a transaction
Date Thu, 04 Jun 2009 17:04:14 GMT
Hi

What does your route look like?

Just a quick idea. Maybe in the producer template sendBody you could
use a JMS endpoint where you set transacted=false.


On Thu, Jun 4, 2009 at 6:43 PM, dcheckoway <dcheckoway@gmail.com> wrote:
>
> Camel 1.6.1, ActiveMQ 5.2.0, Spring 2.5.6
>
> I have a POJO consumer that gets invoked by Camel for messages on an
> ActiveMQ JMS queue.  It's set up as transacted (JMS transaction manager).
> While my POJO is consuming a message, it needs to send a subsequent message
> (or several messages) to a different JMS queue.  I use
> ProducerTemplate.sendBody to accomplish this...it works fine...except...
>
> My "complaint" is that the messages my consumer ends up sending don't
> actually "appear" (in their respective JMS queue) until my consumer returns
> (commits?).
>
> Based on what I've read here (
> http://activemq.apache.org/how-do-transactions-work.html ActiveMQ: How do
> transactions work ) I'm convinced that ActiveMQ is buffering up the sent
> messages until the consumer commits its transaction.  Something like that --
> I'm definitely not an expert on transactions...and that's why I'm posting
> this.
>
> Is there any way to force an already-in-transaction consumer to use a
> *separate* transaction when calling ProducerTemplate.sendBody?
>
> Is there another trick?
>
> My goal is to avoid the whole buffer-til-commit thing if possible, and just
> have those sent messages queued "immediately."
>
> Thanks in advance...
> --
> View this message in context: http://www.nabble.com/How-to-control-transactions-when-already-in-a-transaction-tp23873683p23873683.html
> Sent from the Camel - Users mailing list archive at Nabble.com.
>
>



-- 
Claus Ibsen
Apache Camel Committer

Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
Twitter: http://twitter.com/davsclaus

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