11–20 of 94 posts
> While we don’t yet officially support 130K nodes, we're very encouraged by these findings. If your workloads require this level of scale, reach out to us to discuss your specific needs Obviously this is a typical experiment at Google on running a K8s cluster at 130K nodes but if there is a company out their that "requires" this scale, I must question their architecture and their infrastructure costs. But of course…
It's literally Google coming out with this capability and how is the criticism still "You are not Google"
I’m sure this work is very impressive, but these QPS numbers don’t seem particularly high to me, at least compared to existing horizontally scalable service patterns. Why is it hard for the kube control plane to hit these numbers? For instance, postgres can hit this sort of QPS easily, afaik. It’s not distributed, but I’m sure Vitess could do something similar. The query patterns don’t seem particularly complex eithe…
I am extremely Not A Database Person but I understand that the rationale for Kubernetes adopting etcd as its preferred data store was more about its distributed consistency features and less about query throughput. etcd is slower cause it's doing RAFT things and flushing stuff to disk. Projects like kine allow K8s users to swap sqlite or postgres in place of etcd which (I assume, please correct me otherwise) would de…
A well managed HA postgresql (active/passive) is going to run circles around etcd for kube controlplane operations.
The caveat here is increased risk of downtime, and a much higher management overhead, which is why its not the default.
> While we don’t yet officially support 130K nodes, we're very encouraged by these findings. If your workloads require this level of scale, reach out to us to discuss your specific needs Obviously this is a typical experiment at Google on running a K8s cluster at 130K nodes but if there is a company out their that "requires" this scale, I must question their architecture and their infrastructure costs. But of course…
>You are not Google. It's literally Google coming out with this capability and how is the criticism still "You are not Google"
They mention GCS fuse. We've had nothing but performance and stability problems with this. We treat it as a best effort alternative when native GCS access isn't possible.
They’re wonderful for low volume, low performance and low reliability operations. (browsing, copying, integrating with legacy systems that do not permit native access), but beyond that they consume huge resources and do odd things when the backend is not in its most ideal state.
Doing this at anything > 1k nodes is a pain in the butt. We decided to run many <100 nodes clusters rather than a few big ones.
I’m sure this work is very impressive, but these QPS numbers don’t seem particularly high to me, at least compared to existing horizontally scalable service patterns. Why is it hard for the kube control plane to hit these numbers? For instance, postgres can hit this sort of QPS easily, afaik. It’s not distributed, but I’m sure Vitess could do something similar. The query patterns don’t seem particularly complex eithe…
I am extremely Not A Database Person but I understand that the rationale for Kubernetes adopting etcd as its preferred data store was more about its distributed consistency features and less about query throughput. etcd is slower cause it's doing RAFT things and flushing stuff to disk. Projects like kine allow K8s users to swap sqlite or postgres in place of etcd which (I assume, please correct me otherwise) would de…
AWS and Anthropic did this back in July: https://aws.amazon.com/blogs/containers/amazon-eks-enables-u...
Earlier quoted context omitted.
I am extremely Not A Database Person but I understand that the rationale for Kubernetes adopting etcd as its preferred data store was more about its distributed consistency features and less about query throughput. etcd is slower cause it's doing RAFT things and flushing stuff to disk. Projects like kine allow K8s users to swap sqlite or postgres in place of etcd which (I assume, please correct me otherwise) would de…
GKE uses Spanner as an etcd replacement.