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From "Javier Leyba" <>
Subject Re: How to know if a broker died
Date Tue, 25 Jul 2006 11:52:14 GMT
On 7/25/06, James Strachan <> wrote:
> You could monitor the servers via JMX. Maybe we could get the slave to
> send out an advisory when it becomes the new master so folks can
> subscribe to an advisory for such things?
> Incidentally if you have a shared file system or are happy sacrificing
> some performance for pure JDBC and avoiding the high performance
> journal you can use auto-failover where you can run as many slave
> brokers as required and there is no broker-broker synchronisation
> required...


Thanks for your reply.

I' m a little bit confused with those new features you told me.

As I said before, I've a network of nodes where each node is a
master/slave. I've been making tests with two machines with crossed
master/slaves (ie: machine 1 run master A and slave B and machine 2
run master B and slave A).

I' ve defined client url´s with failover over masters to test what
happen if a whole machine dies. In this scenario, subscribers and
publishers (I'm using topics) worked fine after I killed my machine 1.

Then, I couldn´t see a difference between a failover over masters and
to have a master slave config. Which are the advantages of
master/slave ?

Thanks in advance.

Javier Leyba
Barcelona - Spain

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