OpenShift Common Issues

Enable Monitoring in the Storage Dashboard

OpenShift Console uses OpenShift Prometheus for monitoring and populating data in Storage Dashboard. Additional configuration is required to monitor the Ceph Cluster from the storage dashboard.

1. Change the monitoring namespace to openshift-monitoring

   Change the namespace of the RoleBinding rook-ceph-metrics from rook-ceph to openshift-monitoring for the prometheus-k8s ServiceAccount in rbac.yaml.

subjects:
- kind: ServiceAccount
  name: prometheus-k8s
  namespace: openshift-monitoring

1. Enable Ceph Cluster monitoring

   Follow ceph-monitoring/prometheus-alerts.

2. Set the required label on the namespace

   $ oc label namespace rook-ceph "openshift.io/cluster-monitoring=true"

Troubleshoot Monitoring Issues

Pre-req: Switch to rook-ceph namespace with oc project rook-ceph

1. Ensure ceph-mgr pod is Running

   $ oc get pods -l app=rook-ceph-mgr

    NAME            READY   STATUS    RESTARTS   AGE
    rook-ceph-mgr   1/1     Running   0          14h
   

2. Ensure service monitor is present

   $ oc get servicemonitor rook-ceph-mgr

    NAME                          AGE
    rook-ceph-mgr                 14h
   

3. Ensure prometheus rules are present

   oc get prometheusrules -l prometheus=rook-prometheus

    NAME                    AGE
    prometheus-ceph-rules   14h