The JMS consumer forces synchronization due the underlying Spring JMS
being used.

You should enable concurrent consumers on the JMS endpoint to have
multiple consumers with JMS.
http://camel.apache.org/jms

On Wed, Oct 5, 2011 at 12:16 PM, Ralf Steppacher
<[email protected]> wrote:
> Hi all,
>
> I am stuck with what seemed a trivial task: parallel execution of a
> route with <camel:threads>.
>
> I have basically copied the "Example: threads DSL" on
> http://camel.apache.org/async.html and tried the same in spring XML.
> This is what my route looks like at the moment:
>
> <camel:route>
>  <camel:from ref="mq.topic.command" />
>  <camel:threads>
>    <camel:unmarshal>
>      <camel:serialization />
>    </camel:unmarshal>
>    <camel:log loggingLevel="INFO" message="Received command:
> ${in.body}" />
>    <delay>
>      <constant>10000</constant>
>    </delay>
>  </camel:threads>
> </camel:route>
>
> There are three commands published simultaneously to the topic
> "mq.topic.command" every minute. I expected the three commands to be
> logged quasi simsimultaneously due to the parallel processing, but it
> seems as if they are processed serially in a single thread:
>
> 2011-10-05 11:53:00,191 INFO  route1 - Received command: Command
> [commandType=HARVEST_CLOSES, messageSource=EVENT_EMITTER,
> uuid=9497b5a2-8f39-435c-b00a-44135900d9b7, version=null]
> 2011-10-05 11:53:10,212 INFO  route1 - Received command: Command
> [commandType=HARVEST_QUOTES, messageSource=EVENT_EMITTER,
> uuid=72018457-fa4b-4d0f-8187-9c7f8dabb0bf, version=null]
> 2011-10-05 11:53:20,231 INFO  route1 - Received command: Command
> [commandType=HARVEST_TRADES, messageSource=EVENT_EMITTER,
> uuid=642227f5-0849-43fc-84f9-60233a6023a4, version=null]
>
> I have tried and tested all combinations of where to put the
> <camel:threads> tag, the behavior stays the same.
>
> I found several examples on the web that put the threads tag on a single
> line like this: <camel:threads />
> This is valid according to the schema, but for me start-up of the route
> fails because "thread" has no children.
>
> I spent a little time debugging the ramp-up of the context and can see
> an ExecutorService being created.
>
> What am I missing?
>
> The behavior is the same with Camel 2.7.2 and 2.8.1. I am running this
> on Ubuntu 11.04 (64bit) and Sun JDK 1.6.0_26 (64bit).
>
>
> Thanks!
> Ralf
>



-- 
Claus Ibsen
-----------------
FuseSource
Email: [email protected]
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Twitter: davsclaus, fusenews
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Author of Camel in Action: http://www.manning.com/ibsen/

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