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From Bengt Rodehav <be...@rodehav.com>
Subject Re: sjms and multiple threads
Date Fri, 14 Mar 2014 16:42:12 GMT
Ok - thanks. I have tried it but only together with threads(). I didn't
realize that it might create threads on its own.

/Bengt
Den 14 mar 2014 17:26 skrev "Claus Ibsen" <claus.ibsen@gmail.com>:

> Hi
>
> I think you should use the consumerCount option on the endpoint instead
>
> On Fri, Mar 14, 2014 at 5:10 PM, Bengt Rodehav <bengt@rodehav.com> wrote:
> > I'm using Camel 2.12.3 and the sjms component for communicating with
> > Weblogic JMS.
> >
> > Everything works fine when I use a single thread. However, to increase
> > throughput I want multiple threads to read messages from the queue.
> >
> > I've done this by using the "threads()" method:
> >
> >   from(sjms:...).threads(10)....
> >
> > However I get an exception as follows:
> >
> > java.lang.Exception: Unable to complete sending the message: Only one
> > thread may use a JMS Session at a time.:Only one thread may use a JMS
> > Session at a time.
> > at
> >
> org.apache.camel.component.sjms.producer.InOnlyProducer.sendMessage(InOnlyProducer.java:135)[129:org.apache.camel.camel-sjms:2.12.3]
> > at
> >
> org.apache.camel.component.sjms.SjmsProducer.process(SjmsProducer.java:180)[129:org.apache.camel.camel-sjms:2.12.3]
> > at
> >
> org.apache.camel.processor.SendProcessor.process(SendProcessor.java:110)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.process(Pipeline.java:118)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:574)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.MulticastProcessor.doProcessSequential(MulticastProcessor.java:507)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.MulticastProcessor.process(MulticastProcessor.java:216)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Splitter.process(Splitter.java:98)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.ChoiceProcessor.process(ChoiceProcessor.java:111)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.management.InstrumentationProcessor.process(InstrumentationProcessor.java:72)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.RedeliveryErrorHandler.process(RedeliveryErrorHandler.java:398)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.CamelInternalProcessor.process(CamelInternalProcessor.java:191)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.process(Pipeline.java:118)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.process(Pipeline.java:80)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.process(Pipeline.java:118)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline.access$100(Pipeline.java:43)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.Pipeline$1.done(Pipeline.java:136)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> org.apache.camel.processor.ThreadsProcessor$ProcessCall.run(ThreadsProcessor.java:83)[106:org.apache.camel.camel-core:2.12.3]
> > at
> >
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)[:1.6.0_32]
> > at
> >
> java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)[:1.6.0_32]
> > at java.util.concurrent.FutureTask.run(FutureTask.java:138)[:1.6.0_32]
> > at
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)[:1.6.0_32]
> > at
> >
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)[:1.6.0_32]
> > at java.lang.Thread.run(Thread.java:662)[:1.6.0_32]
> >
> > What exactly does this mean and how can I consume messages via sjms using
> > multiple threads?
> >
> > /Bengt
>
>
>
> --
> Claus Ibsen
> -----------------
> Red Hat, Inc.
> Email: cibsen@redhat.com
> Twitter: davsclaus
> Blog: http://davsclaus.com
> Author of Camel in Action: http://www.manning.com/ibsen
> Make your Camel applications look hawt, try: http://hawt.io
>

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