4 ms·
does it have to be mulitple federated clusters? can etcd and kubelet not just handle 100ms? (or be adapted to).
by cagenut 5y ago
does it have to be mulitple federated clusters? can etcd and kubelet not just handle 100ms? (or be adapted to).
- p_l 5y agoWhile laten ies can get pretty good these days, I'd rather not plan on having 100ms ceiling for multiple DCs without dedicated lines and considerably close geographic locations.
- cagenut 5y agous east-west coast is in the 60's and us to western eu is in the 70s. hell I'd be content to run the etcd cluster across a tighter range, us-east-1/us-east-2/ca-central-1 are all within 30ms of each other. so I guess its really about kublet and whatever comes after that I'm not thinking of (networking).
- gravypod 5y agoIf you have multiple federated clusters you can tolerate issues that affect an entire cluster of machines. Having 3x clusters each with 3x master nodes that do not depend on each other, and Volume drivers that are aware of having replication across regions, you can make some really reliable things. For most use cases though what you're talking about will work and you can do it today with just setting up a VPN to have a flat internal network topology.