Configure etcd request size limit

Use the cluster_config.etcd_request_quota parameter in the MKE configuration file to set the maximum size of a single gRPC request accepted by the etcd server. This value is passed directly to etcd as --max-request-bytes. If cluster_config.etcd_request_quota is not set, etcd applies its built-in default maximum of 1.5 MiB.

Increase the etcd request size limit if your workloads involve very large objects or wide-ranging reads that are causing request size failures. Be aware, though, that increasing the limit will raise memory consumption per operation across all etcd members.

Important

Exercise caution when decreasing the etcd request size limit, as setting it too low can break etcd or Kubernetes control plane operations that need to process larger requests.