Part II. General Config Reference

fsid

Description

The filesystem 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.pid will create /var/run/ceph/mon.a.pid for the mon with id a running in the ceph cluster. The pid file is removed when the daemon stops gracefully. If the process is not daemonized (i.e. runs with the -f or -d option), the pid file is 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_fds at the OS level (i.e., the max # of file descriptors). It helps prevents 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