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From Dejan Bosanac <de...@nighttale.net>
Subject Re: onMessage long execution
Date Tue, 24 Feb 2009 09:25:51 GMT
Regarding the second question, can you check whether the message hit the
broker (using JConsole or Web console)? Also, if you're in transaction, did
you commit it?

Cheers
--
Dejan Bosanac

Open Source Integration - http://fusesource.com/
ActiveMQ in Action - http://www.manning.com/snyder/
Blog - http://www.nighttale.net


On Tue, Feb 24, 2009 at 9:21 AM, Meise, Christoph <
Christoph.Meise@immobilienscout24.de> wrote:

> Hi,
>
> Concerning our first question, the effect that only one message is
> processed is perfectly explainable. A JMS Message Listener belongs to a JMS
> Session and each JMS Session is a single threaded context (see JMS Spec). So
> you should decouple long lasting computations from the session.
>
> -christoph
>
> -----Urspr√ľngliche Nachricht-----
> Von: fatcat [mailto:byflam@gmail.com]
> Gesendet: Dienstag, 24. Februar 2009 00:58
> An: users@activemq.apache.org
> Betreff: onMessage long execution
>
>
> hi,
> i have a listener onMessage() that sometimes will take a while to
> complete(expensive), so what happen seems like, while if there is a ongoing
> onMessage is being executed, no other message will be processed by our code.
> is that true that activeMQ only use on thread to dispatch the onMessage
> call ? is there any configuration parameter can be used such that, an
> expensive onMessage execution will not block the other onMessage call?
>
> Also not sure it is related, but if we send another activeMQ message to
> another Q through the input's message's reply address, during a long
> exeuction of onMessage, the reply message will never got received in the
> other queue, although the send method is really being called.
>
> any pointer?
>
>
> --
> View this message in context:
> http://www.nabble.com/onMessage-long-execution-tp22172993p22172993.html
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>

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