Hi,

active/active deployment you are talking about in Artemis world is just "group 
of brokers". It doesn't provide you HA by default, but two groups can be 
configured for HA. It's a little bit wasteful because you will have to add 3-4 
broker to satisfy your requirements, but generally it works.

I recommend reading RedHat's AMQ (which is based on Artemis) clustering 
documentation at 
https://docs.redhat.com/en/documentation/red_hat_amq/7.4/html/configuring_amq_broker/setting-up-broker-cluster-configuring#setting-up-broker-cluster-configuring
 . They have a little bit more information and some nice pictures to understand 
how Artemis clustering can be configured.

-- 
    Vilius

-----Original Message-----
From: William Crowell <wcrow...@perforce.com.INVALID> 
Sent: Tuesday, March 18, 2025 1:53 PM
To: users@activemq.apache.org
Subject: Re: What HA Replication Policy Is For Active-Active Topology

Domenico,

Hi.  I require 2 brokers to be primary/active at the same time.  The way the 
documentation is written it does not come out and say you can run with that 
configuration; however, this statement leads you to believe that configuration 
is possible:

https://activemq.apache.org/components/artemis/documentation/latest/clusters.html#performance-considerations


  1.  “Start simple. Benchmark your use-case with a single broker first. A 
single broker can handle millions of messages per second in certain use-cases. 
If you can’t meet your performance goal with a single broker only then move to 
a clustered configuration. Only add complexity when there is a clear benefit.”

Regards,

William Crowell

From: Domenico Francesco Bruscino <bruscin...@gmail.com>
Date: Tuesday, March 18, 2025 at 6:15 AM
To: users@activemq.apache.org <users@activemq.apache.org>
Subject: Re: What HA Replication Policy Is For Active-Active Topology Hi 
William,

the HA policies allow the system to continue functioning after failure of one 
or more of the servers. They require at least 2 brokers to work. The first 
broker is active and the second broker waits for the first broker failure to 
replace it reloading durable/persisted messages. In this way, the client 
connections can migrate from one server to another in event of server failure 
so client applications can continue to operate.

Can you clarify your expectations from an active/active deployment?

Regards,
Domenico

On Mon, 17 Mar 2025 at 16:22, William Crowell <wcrow...@perforce.com.invalid>
wrote:

> Good morning,
>
> It appears all HA policies are for active/passive setup.  Are there 
> any for active/active?  Does this exist?
>
> I was reading through:
> https://activemq.apache.org/components/artemis/documentation/latest/ha
> .html#replication<https://activemq.apache.org/components/artemis/docum
> entation/latest/ha.html#replication>
>
> For example, you have 2 Artemis brokers and you want them both to be 
> active at the same time, and the data directories are separate.
>
> Would you just specify the following in broker.xml on both servers?
>
> <ha-policy>
>    <replication>
>       <primary/>
>    </replication>
> </ha-policy>
>
> I looked through the examples here and could not find it (unless I 
> missed
> it):
>
>
> https://github.com/apache/activemq-artemis-examples/tree/main/examples
> /features/ha
>
> Regards,
>
> William Crowell
>
>
> This e-mail may contain information that is privileged or 
> confidential. If you are not the intended recipient, please delete the 
> e-mail and any attachments and notify us immediately.
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