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Appendix A. General configuration options
These are the general configuration options for Ceph.
Note
Typically, these will be set automatically by deployment tools, such as cephadm.
fsid- Description
- The file system ID. One per cluster.
- Type
- UUID
- Required
- No.
- Default
- N/A. Usually generated by deployment tools.
admin_socket- Description
- The socket for executing administrative commands on a daemon, irrespective of whether Ceph monitors have established a quorum.
- Type
- String
- Required
- No
- Default
-
/var/run/ceph/$cluster-$name.asok
pid_file- Description
-
The file in which the monitor or OSD will write its PID. For instance,
/var/run/$cluster/$type.$id.pidwill create /var/run/ceph/mon.a.pid for themonwith idarunning in thecephcluster. Thepid fileis removed when the daemon stops gracefully. If the process is not daemonized (meaning it runs with the-for-doption), thepid fileis not created. - Type
- String
- Required
- No
- Default
- No
chdir- Description
-
The directory Ceph daemons change to once they are up and running. Default
/directory recommended. - Type
- String
- Required
- No
- Default
-
/
max_open_files- Description
-
If set, when the Red Hat Ceph Storage cluster starts, Ceph sets the
max_open_fdsat the OS level (that is, the max # of file descriptors). It helps prevent Ceph OSDs from running out of file descriptors. - Type
- 64-bit Integer
- Required
- No
- Default
-
0
fatal_signal_handlers- Description
- If set, we will install signal handlers for SEGV, ABRT, BUS, ILL, FPE, XCPU, XFSZ, SYS signals to generate a useful log message.
- Type
- Boolean
- Default
-
true
