Allow a group preference scheme for failover urls
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Key: AMQ-2375
URL: https://issues.apache.org/activemq/browse/AMQ-2375
Project: ActiveMQ
Issue Type: Improvement
Components: JMS client
Environment: All
Reporter: Andreas Gies
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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