- About this guide
- 1 Reporting software problems
- 2 Troubleshooting logging and debugging
- 2.1 Accessing configuration settings at runtime
- 2.2 Activating Ceph debugging at boot time
- 2.3 Accelerating log rotation
- 2.4 Monitoring memory utilization
- 2.5 Enable system, log, and debug settings
- 2.6 Logging kernel RBD and CephFS clients
- 2.7 Per-service and per-daemon events
- 2.8 Debugging a crashing process running in a container
- 3 Troubleshooting cephadm
- 3.1 Pausing or disabling cephadm
- 3.2 Checking cephadm logs
- 3.3 Accessing Ceph daemon logs
- 3.4 Collecting
systemdstatus - 3.5 Listing configured container images
- 3.6 Listing all downloaded container images
- 3.7 Running containers manually
- 3.8 Failing to infer CIDR network error
- 3.9 Accessing the admin socket
- 3.10 Deploying a Ceph Manager manually
- 3.11 Distributing a program temporary fix (PTF)
- 3.12 Failure When Adding Hosts with cephadm
- 3.13 Disabling automatic deployment of daemons
- 4 Troubleshooting OSDs
- 5 Troubleshooting placement groups (PGs)
- 5.1 Identifying troubled placement groups
- 5.2 Placement groups never get clean
- 5.3 Stuck placement groups
- 5.4 Peering failure of placement groups
- 5.5 Failing unfound objects
- 5.6 Identifying homeless placement groups
- 5.7 Only a few OSDs receive data
- 5.8 Unable to write data
- 5.9 Identifying inconsistent placement groups
- 5.10 Identifying inactive erasure coded PGs
- 6 Troubleshooting Ceph Monitors and Ceph Managers
- 7 Troubleshooting networking
- 8 Troubleshooting NFS Ganesha
- 9 Troubleshooting Ceph health status
- 10 Troubleshooting the Ceph Dashboard
- 11 Troubleshooting Object Gateway
- 12 Troubleshooting CephFS
- 13 Hints and tips
- 13.1 Identifying orphaned volumes
- 13.2 Adjusting scrubbing
- 13.3 Stopping OSDs without rebalancing
- 13.4 Checking for unbalanced data writing
- 13.5 Increasing file descriptors
- 13.6 Integration with virtualization software
- 13.7 Firewall settings for Ceph
- 13.8 Testing network performance
- 13.9 Locating physical disks using LED lights
- 13.10 Sending large objects with
radosfails with full OSD - 13.11 Managing the 'Too Many PGs per OSD' status message
- 13.12 Managing the 'nn pg stuck inactive' status message
- 13.13 Fixing clock skew warnings
- 13.14 Determining poor cluster performance caused by network problems
- 13.15 Managing
/varrunning out of space
- 14 Frequently asked questions
- A Ceph maintenance updates based on upstream 'Pacific' point releases
- Glossary
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