Re: [infinispan-dev] Use cases for x-datacenter replication

Yes, this makes sense. Although I doubt you will lose an entire data center. But an intermediate switch can always crash, making the DC inaccessible, which is the same problem for clients as if the entire DC crashed. Also, if we implement the follow-the-sun approach, then clients need to be switched over gracefully from one DC to another one, so this functionality definitely needs to be provided. We probaby need to differentiate between a crash-failover and a graceful failover; in the latter case, clients can be switched over to the new DC within a certain time frame, so we minimize load spikes that might be caused by switching over all clients at exactly the same time. I added your comment to https://community.jboss.org/wiki/CrossDatacenterReplication-Design, so we can discuss this next week (we have a meeting on cross-data center clustering WED-FRI in London). Keep the suggestions coming !