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Ceph Cookbook - Second Edition by Karan Singh, Michael Hackett, Vikhyat Umrao

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Troubleshooting monitors

Ceph monitor issues can usually be seen in the ceph status or ceph health detail command outputs, and they identify which monitor is reporting the issue. Ceph monitor logs are located at /var/log/ceph/ceph-mon.<node-name>.log, and this log can be investigated to determine the root cause of monitor failures or errors. The upcoming recipes will cover some common issues that can be seen in your Ceph cluster with monitors.

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