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From Felipe Fraga <>
Subject Re: HA Cluster from Standalone Artemis
Date Tue, 14 May 2019 11:08:57 GMT
Hello and thanks for your reply,

I guess what I would really want is to have 2 live servers sharing the same
storage on the filesystem and if my load balancer tries a server that is
killed for some reason it then sends the same requests to the other server
and it works transparently, but I recognise that is not the Artemis

I had a quick look on the JGroups configuration at the Artemis
configuration at the time, but I will try to understand it better to see if
I can configure the cluster in my scenario using it. Maybe using something

Thanks again.


On Fri, May 10, 2019 at 3:00 PM Justin Bertram <> wrote:

> What kind of "high availability" do you want? High availability (i.e. HA)
> in ActiveMQ Artemis is provided by a pair of brokers - one live and one
> backup. If all your brokers are configured as live and you have no backup
> brokers then you won't technically have HA functionality. If you have two
> brokers configured as live and they're trying to access the same journal
> then only one of those brokers will be active since locks prevent the
> journal from being used by two brokers simultaneously.
> Also, Artemis supports JGroups which has pluggable discovery mechanisms
> that work in various clouds without the use of multicast.  Have you tried
> using any of those?
> Justin
> On Tue, Apr 16, 2019 at 6:14 AM Felipe Fraga <>
> wrote:
> > Hello all,
> >
> > I now have ActiveMQ Artemis 2.6.4 deployed as docker container in an
> > elastic cloud environment.
> >
> > Nodes can be scaled up or down at any time and actual IP's cannot be
> known
> > during configuration time, so I can't create a cluster-connection using
> > static cluster members.
> >
> > I also have an outside load balancer that is able to forward requests to
> > these containers according to a certain algorithm.
> >
> > Now, problem is, I have a special requirement that I am not allowed for
> > this containers to use multicast requests to discover another nodes in
> the
> > cluster. Effectively, each node must run as standalone.
> >
> > I have used shared-storage ha-policy configuration, but nodes must still
> > announce themselves to others as the documentation states. And with all
> > nodes configured as live servers, one node just waits to get a lock on
> the
> > journal shared directory.
> >
> > So, Is there a possible scenario to achieve an HA Cluster using ActiveMQ
> > Artemis instances configured as standalone servers, using just a
> > shared-storage and my external load balancer?
> >
> > Thanks in advance for the help.
> >
> > Regards,
> >
> > Felipe
> >

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