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my-rook-config/Documentation/openshift-issues.md
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Umanga Chapagain b08b523c2a Ceph: adds openshift common issues documentation 
- adds guide to troubleshoot Ceph Cluster monitoring on OpenShift

Signed-off-by: Umanga Chapagain <chapagainumanga@gmail.com>
2020-01-31 11:34:44 +05:30

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OpenShift Common Issues 10620 true

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. 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
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