Monitoring Control Plane Metrics shows guidance for deprecated metrics

[cbb330]

Describe the problem

Metric	Notes
etcd_request_latencies_summary	Deprecated: kubernetes/kubernetes#76496 - Replaced with etcd_request_duration_seconds
etcd_helper_cache_entry_total	Deprecated: kubernetes/kubernetes#79520
etcd_helper_cache_hit_total	Deprecated: kubernetes/kubernetes#79520
etcd_helper_cache_miss_total	Deprecated: kubernetes/kubernetes#79520
etcd_request_cache_get_duration_seconds	Deprecated: kubernetes/kubernetes#79520
etcd_request_cache_add_duration_seconds	Deprecated: kubernetes/kubernetes#79520

The PR/code changes for this deprecation do not list alternatives.

Can anyone provide alternatives for these deprecated metrics?

References
https://aws.github.io/aws-eks-best-practices/reliability/docs/controlplane/#monitor-control-plane-metrics

[jicowan]

@realvz Please review this issue.

[realvz]

Looks like most of etcd metrics mentioned here have been deprecated without providing a replacement metric. I will remove them for now until we can find alternatives.

[jicowan]

@realvz can we close this?

[realvz]

Closing the issue since these metrics are no longer available.