On Jul 5, 2018, at 1:07 PM, Alexander Dalloz <ad+li...@uni-x.org> wrote: > > classical cluster setups are so 2000s. Outdated by modern infrastructure > concepts you see implemented in Kubernetes, OpenShift or cloud solutions in > general. It's commonly summarized in the phrase "pets versus cattle". You > don't want clusters to be treated as pets.
That depends on how expensive it is to grow the herd, to extend your metaphor. For example, if you have a big DBMS, it’s probably much, much faster to maintain a live spare that you can fail over to instantly than it is to spin up a new VM with OpenKuberStack® and clone the complete DBMS over the Internet. At 1 Gbit/sec, every 10 TB costs you about a day of replication time! The herd-of-cattle model and follow-ons like “serverless” assume you can spin a new one up in a second or so. That ain’t always possible. _______________________________________________ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
