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hunzo/ceph-mon-fix.md

Created August 21, 2025 01:57
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fix ceph-mon start error
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ceph-mon-fix.md

ceph-mon start error

Check process

ps -ef | grep ceph-mon
netstat -tulnp | grep 6789
  • if exist kill process
kill -9 <PID>

Check mon map

ceph mon dump
  • if exist ceph mon remove
ceph mon remove <mon-name>

Check /etc/ceph/ceph.config

  • check ip

Clear socket

ls /var/run/ceph/
rm -f /var/run/ceph/ceph-mon.*

Create and Restart

systemctl start ceph-mon@<hostname>
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