is a utility to create, view, and modify a monitor cluster map for the
Ceph distributed file system. The monitor map specifies the only fixed
addresses in the Ceph distributed system. All other daemons bind to
arbitrary addresses and register themselves with the monitors.
When creating a map with --create, a new monitor map with a
new, random UUID will be created. It should be followed by one or
more monitor addresses.
The default Ceph monitor port is 6789.
will print a plaintext dump of the map, after any modifications are made.
to overwrite mapfilename if changes are made.
will create a new monitor map with a new UUID (and with it, a new, empty Ceph file system).
--add name ip:port
will add a monitor with the specified ip:port to the map.
will remove the monitor with the specified ip:port from the map.
To create a new map with three monitors (for a fresh Ceph file system):