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From "Bruce Snyder (JIRA)" <>
Subject [jira] Updated: (AMQ-2375) Allow a group preference scheme for failover urls
Date Sat, 18 Sep 2010 16:44:03 GMT


Bruce Snyder updated AMQ-2375:

    Fix Version/s: 5.5.0
                       (was: 5.4.1)

> Allow a group preference scheme for failover urls
> -------------------------------------------------
>                 Key: AMQ-2375
>                 URL:
>             Project: ActiveMQ
>          Issue Type: Improvement
>          Components: JMS client
>         Environment: All
>            Reporter: Andreas Gies
>             Fix For: 5.5.0
> This enhancement request comes from working with a network of brokers, where each node
in itself has a master/slave fault tolerant configuration. 
> In a 2x2 setup currently you would have a failover url on the client side consisting
of 4 single urls (2 masters, 2 slaves). Once a broker dies the JMS client would reconnect

> using one of the 4 urls either randomly chosen or in sequence of the url definition.
> That might cause the client to reconnect to a broker that belongs to the other master/slave
pair. As master/slave is designed to preserve the session state etc, it would be preferable

> that the client tries to connect to the new master in its own master/slave group and
only if that fails, connect to another broker.
> I would imagine a nested scheme of configurations, something like:
> failover:(failover:(master1,slave1)?randomize=false,failover:(master2,slave2)?randomize=false)?randomize=true

> instead of 
> failover:(master1,slave1,master2,slave2)

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