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From Christian Posta <>
Subject Re: Re:Clarifcation on KahaDB support for message priority is needed
Date Wed, 03 Apr 2013 04:35:27 GMT
The clientside message priority is kinda the "default" approach to handling
priority.. no config is needed (on the broker, or the client side) to
enable it... if a producer is sending messages with JMSPriority, then when
the consumer sees it in its prefetch, it will do its best to order them

This won't get you too far if priority is not enabled in the broker and
your consumer prefetch gets filled. It does "somewhat" fulfill the JMS spec
of "do its best to deliver expedited messages ahead of normal messages"

On Tue, Apr 2, 2013 at 9:31 AM, mikmela <> wrote:

> Excellent article! You really took time detailing priority support issues
> on
> ActiveMQ broker's side. I wish you could get into a bit more specifics on
> “Client side message priority” – googling jms.messagePrioritySupported
> didn’t bring much… How does it impact final message consumption
> priority-wise?
> Overall conclusion, it’s hard at this time to get it working on ActiveMQ
> without really understanding of broker/consumer infrastructure internals…
> May be  ActivemMQ version 6 should address it via true Message
> Priority-supported Queue where all these  flags, caching mechanisms and etc
> are opaque to user and enablement of it straight forward and relatively
> simple. It could be a good selling point when choosing JMS provider...
> --
> View this message in context:
> Sent from the ActiveMQ - User mailing list archive at

*Christian Posta*
twitter: @christianposta

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