Portal:Cloud VPS/Admin/Runbooks/CephClusterInWarning

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Troubleshooting

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Programmatic usage

• OpenStack APIs
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The procedures in this runbook require admin permissions to complete.

Error / Incident

The ceph cluster is in warning status, this means that it's not highly available anymore or something might be affecting it's performance, but the cluster is still up and running.

Debugging

See Portal:Cloud VPS/Admin/Runbooks/CephClusterInError for debugging and details.

Support contacts

Usually anyone in the WMCS team should be able to help/debug the issue, subject matter experts (SMEs) would be Andrew Bogott and David Caro.

Related information

• Grafana dashboard: https://grafana.wikimedia.org/d/7TjJENEWz/wmcs-ceph-eqiad-cluster-overview?orgId=1
• Internal documentation: Portal:Cloud_VPS/Admin/Ceph
• Upstream documentation: https://docs.ceph.com/docs/master/rados/operations/monitoring/

Example tasks

• https://phabricator.wikimedia.org/T286649 - OSD daemon crash