How to collect etcd metrics in OpenShift 4.4 and higher?
Issue
- How to identify disk operation latencies which often indicate disk issues and this may cause high request latency or make the cluster unstable.
- How to collect the raw metrics exposed by etcd container ?
- How to get some etcd metrics directly from etcd in the case that prometheus is failing?
Environment
- Red Hat OpenShift Container Platform (RHOCP)
- 4.4 and higher
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