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MONMAPTOOL

MONMAPTOOL

Section: Maintenance Commands (8)
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NAME

monmaptool - ceph monitor cluster map manipulation tool  

SYNOPSIS

monmaptool mapfilename [ --clobber ] [ --print ] [ --create ] [ --add ip:port ... ] [ --rm ip:port ... ]  

DESCRIPTION

monmaptool 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.  

OPTIONS

--print
will print a plaintext dump of the map, after any modifications are made.
--clobber
will allow monmaptool to overwrite mapfilename if changes are made.
--create
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.
--rm name
will remove the monitor with the specified ip:port from the map.
 

EXAMPLE

To create a new map with three monitors (for a fresh Ceph file system):
monmaptool --create --add mon.a 192.168.0.10:6789 --add mon.b 192.168.0.11:6789 --add mon.c 192.168.0.12:6789 --clobber monmap

To display the contents of the map:

monmaptool --print onmap

To replace one monitor:

monmaptool --rm mon.a --add mon.a 192.168.0.9:6789 --clobber monmap
 

AVAILABILITY

monmaptool is part of the Ceph distributed file system. Please refer to the Ceph wiki at http://ceph.newdream.net/wiki for more information.  

SEE ALSO

ceph(8), crushtool(8), mkcephfs(8)


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXAMPLE
AVAILABILITY
SEE ALSO

This document was created by man2html, using the manual pages.
Time: 22:02:00 GMT, April 16, 2011