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Message-ID: <af2843cd0610250739r4b6590ffne87cd0bc49a1371@mail.gmail.com>
Date: Wed, 25 Oct 2006 10:39:55 -0400
From: "Hiram Chirino" <hiram@hiramchirino.com>
Sender: chirino@gmail.com
To: activemq-users@geronimo.apache.org
Subject: Re: Self configuring network of brokers
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change all the occurrences of  "multicast://default" to
"multicast://default?keepAliveInterval=100000" where the keepAliveInterval
is how often to send a heartbeat out in ms.

On 10/25/06, kristoffer <stoffe@gmail.com> wrote:
>
>
> Hi,
>
> Ok. Because there were some log statements before doing each send, saying
> somethin that my current broker has been added to the list of brokers?
>
> I browsed through the documentation but i could not find any information
> on
> how to change this heartbeat packets?
>
> regards,
> -Kristoffer
>
>
> Hiram Chirino wrote:
> >
> > On 10/19/06, kristoffer <stoffe@gmail.com> wrote:
> >>
> >>
> >> Hi,
> >>
> >> Just got my client to connect to brokers using multicast properly, yea!
> >> But
> >> (comparing with a static tcp connection) performance is so much worse
> >> when
> >> using discovery:(multicast://default) at the client side. It looks like
> >> (correct me if im wrong) every message sent from the client to the
> >> broker,
> >> causing a multicast discovery in order to find a broker. Why is this
> >
> >
> > no.  but the client is getting every broker heartbeat which defaults to
> > about 1 every 500 ms.  So if you have alot of brokers and a slow client
> > connection that could be alot of traffic that the client is getting.
> >
> > behaviour? Is because of loadbalancing? Is there some way that the
> > discovery
> >> could be made only when the connection is broken?
> >>
> >> What i want is to have a loadbalanced system which is easy
> configurable.
> >> I
> >> dont want to update all my traffic servers configuration with new tcp
> >> urls
> >> if I decide to add a new broker. At the same time i dont want any
> >> overhead
> >> of running multicast, except when a connection failure occurs.
> >
> >
> >
> > The overhead of multicast is only that each broker is sending out
> > heartbeat
> > messages.  You can change the time interval to make that overhead be
> much
> > less.
> >
> > Please help me understand if this is feasible or not, if not, what are a
> >> common setup? What are my options in terms of performance vs
> >> ease-of-configuration?
> >>
> >> Thank you,
> >> -Kristoffer
> >> --
> >> View this message in context:
> >>
> http://www.nabble.com/Self-configuring-network-of-brokers-tf2473032.html#a6895670
> >> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
> >>
> >>
> >
> >
> > --
> > Regards,
> > Hiram
> >
> > Blog: http://hiramchirino.com
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/Self-configuring-network-of-brokers-tf2473032.html#a6988430
> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>
>


-- 
Regards,
Hiram

Blog: http://hiramchirino.com

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