community/sig-scalability

Scalability SIG

Leads: Bob Wise (@countspongebob) and Joe Beda (@jbeda)

Slack Channel: #sig-scale. Archive

Mailing List: kubernetes-sig-scale

Meetings: Thursdays at 9am pacific. Contact Joe or Bob for invite. Notes

Docs: Scaling And Performance Goals

Scalability SLAs

We officially support two different SLAs:

1. "API-responsiveness": 99% of all API calls return in less than 1s

2. "Pod startup time: 99% of pods (with pre-pulled images) start within 5s

This should be valid on appropriate hardware up to a 1000 node cluster with 30 pods/node. We eventually want to expand that to 100 pods/node.

For more details how do we measure those, you can look at: http://blog.kubernetes.io/2015_09_01_archive.html

In the future we may want to add more SLAs (e.g. scheduler throughput), but we are not there yet.