5 ms·

Can you please elaborate on the "kine" overhead?

• nullify88 3y ago
  Kine (https://github.com/k3s-io/kine https://github.com/k3s-io/kine) is a shim or an external process (when not k3s) that translates the etcd api to enable compatibility with a database or alternative data store. Kubernetes natively talks etcd, so this translation is what enables its usage with sqlite or another database, but it incurs an overhead. I don't have specific numbers unfortunately since it was years ago I benchmarked Kine against etcd. But I had a better results with etcd both in cluster and single node. I happened to stumble upon this paper that echos my experience. https://programming-group.com/assets/pdf/papers/2023_Lightweight-Kubernetes-Distributions.pdf https://programming-group.com/assets/pdf/papers/2023_Lightwe... Particularly, the high controller cpu usage (even for an empty cluster), and higher latencies.
  • pas 3y ago
    thanks! my problem with etcd was very high and constant I/O and CPU usage. I don't mind the latency.