Hi all, Pulsar doesn't support cgroup v2 which becomes default in Kubernetes v1.25+. Kubernetes announcement: https://kubernetes.io/blog/2022/08/31/cgroupv2-ga-1-25/ . Pulsar issue: https://github.com/apache/pulsar/issues/16601
The impact of this is that the Pulsar load balancer won't have correct CPU and memory information for making load balancing decisions. The cloud provider managed Kubernetes services have already switched to cgroup v2 as the default. This happened in AKS v1.25, GKE v1.26 and in EKS v1.26. For GKE, it's possible to keep using cgroup v1 also in GKE v1.26 (https://cloud.google.com/kubernetes-engine/docs/how-to/node-system-config#cgroup-mode-options). For AKS and EKS, it's unknown whether such a configuration option exists. There's a previous attempt in this PR to add cgroup v2 support to Pulsar: https://github.com/apache/pulsar/pull/16832 . Would it be possible to continue the work for supporting cgroup v2 in Pulsar either with the existing PR or a new one? Who would like to pick up this work? This is urgent since cgroup v2 is enabled by default for all latest managed Kubernetes services (AKS v1.25, GKE v1.26 and EKS v1.26). Regards, -Lari
