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From "Roger Hoover" <roger.hoo...@gmail.com>
Subject Re: Is it possible to suspend and resume message delivery for broker?
Date Fri, 02 Nov 2007 00:07:46 GMT
Interesting idea.  Thanks, Trevor.

On 11/1/07, tpounds <trevor.pounds@gmail.com> wrote:
>
> If your broker is forwarding to another broker similar to a network of
> brokers configuration you could stop the network connector between them
> temporarily via JMX.  The configuration could be similar to the following:
>
> Before Connector Stop:
>
> (Producer) -> (Broker 1) -> (Broker 2) -> (Consumer)
>
> After Connector Stop:
>
> (Producer) -> (Broker 1) XXLink DownXX (Broker 2) -> (Consumer)
>
> At this point you would do your upgrade procedure on the consumer. Then
> start the downed link back up.  What this would effectively accomplish is
> queuing all the messages on broker 1 until the link between broker 1 and
> broker 2 has been reestablished.
>
> -Trevor
>
>
> Roger Hoover wrote:
> >
> > Stopping the consumers involves sending SIGTERM to them which could
> > kill them in the middle of processing a message.  Being able to
> > suspend delivery would allow us to make sure they were no longer
> > processing messages before we kill them.  Granted, we can get around
> > this problem by retrofitting the code to handle SIGTERM appropriately
> > but this would have been the easier approach.
> >
> > However, there may be other use cases for a "suspend delivery" feature.
> >
> > On 11/1/07, James Strachan <james.strachan@gmail.com> wrote:
> >> On 01/11/2007, Roger Hoover <roger.hoover@gmail.com> wrote:
> >> > While rolling out new consumer code, we'd like to suspend the broker
> >> > so that messages can be enqueued but not delivered.  Once we've pushed
> >> > the new code out and restarted the consumers, we want to resume
> >> > message delivery.
> >> >
> >> > Is this possible with ActiveMQ?
> >> >
> >> > Any advice/info is appreciated.  Thanks,
> >>
> >> Why not just stop the consumers, redeploy the code and restart them?
> >>
> >> --
> >> James
> >> -------
> >> http://macstrac.blogspot.com/
> >>
> >> Open Source SOA
> >> http://open.iona.com
> >>
> >
> >
>
> --
> View this message in context: http://www.nabble.com/Is-it-possible-to-suspend-and-resume-message-delivery-for-broker--tf4733097s2354.html#a13538863
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>

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