Duplicated prometheus metrics in Couchbase Server 8.0.0

Couchbase Server Kubernetes
1

Hi.

Recently, I was testing the server deployed by the operator. It seems, the new native exporter is throwing duplicated metrics, as you can see here when the prometheus server calls the metrics endpoint:

kubectl exec -n openshift-user-workload-monitoring prometheus-user-workload-0 -c prometheus – curl -sS -u “${USER}:${PASS}” ‘http://10.128.0.12:8091/metrics’ |grep cm_rest_request_enters_total
# TYPE cm_rest_request_enters_total counter
# HELP cm_rest_request_enters_total Number of REST requests to enter ns_server
cm_rest_request_enters_total{} 64964
# TYPE cm_rest_request_enters_total counter
# HELP cm_rest_request_enters_total Number of REST requests to enter ns_server
cm_rest_request_enters_total{} 64964

Here is the server definition:

  servers:
    - name: data
      size: 1
      services:
        - data
        - index
        - query
      volumeMounts:
        logs: couchbase
      resources:
        requests:
          cpu: '2'
          memory: 4Gi
        limits:
          cpu: '4'
          memory: 8Gi

    - name: query
      size: 1
      services:
        - index
        - query
      volumeMounts:
        logs: couchbase
      resources:
        requests:
          cpu: '2'
          memory: 4Gi
        limits:
          cpu: '4'
          memory: 8Gi

    - name: analytics
      size: 1
      services:
        - analytics
        - eventing
      volumeMounts:
        logs: couchbase
      resources:
        requests:
          cpu: '1'
          memory: 2Gi
        limits:
          cpu: '2'
          memory: 4Gi

It is duplicated in all of them.

Summary

Duplicated prometheus metrics in Couchbase Server 8.0.0

2

Addressed by MB-70951 in 8.0.2