mirror of
https://github.com/ceph/ceph
synced 2024-12-15 16:07:00 +00:00
73 lines
1.9 KiB
ReStructuredText
73 lines
1.9 KiB
ReStructuredText
=========================================
|
|
ceph-mds -- ceph metadata server daemon
|
|
=========================================
|
|
|
|
.. program:: ceph-mds
|
|
|
|
Synopsis
|
|
========
|
|
|
|
| **ceph-mds** -i *name* [[ --hot-standby [*rank*] ]|[--journal_check *rank*]]
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
**ceph-mds** is the metadata server daemon for the Ceph distributed file
|
|
system. One or more instances of ceph-mds collectively manage the file
|
|
system namespace, coordinating access to the shared OSD cluster.
|
|
|
|
Each ceph-mds daemon instance should have a unique name. The name is used
|
|
to identify daemon instances in the ceph.conf.
|
|
|
|
Once the daemon has started, the monitor cluster will normally assign
|
|
it a logical rank, or put it in a standby pool to take over for
|
|
another daemon that crashes. Some of the specified options can cause
|
|
other behaviors.
|
|
|
|
If you specify hot-standby or journal-check, you must either specify
|
|
the rank on the command line, or specify one of the
|
|
mds_standby_for_[rank|name] parameters in the config. The command
|
|
line specification overrides the config, and specifying the rank
|
|
overrides specifying the name.
|
|
|
|
|
|
Options
|
|
=======
|
|
|
|
.. option:: -f, --foreground
|
|
|
|
Foreground: do not daemonize after startup (run in foreground). Do
|
|
not generate a pid file. Useful when run via :doc:`ceph-run
|
|
<ceph-run>`\(8).
|
|
|
|
.. option:: -d
|
|
|
|
Debug mode: like ``-f``, but also send all log output to stderr.
|
|
|
|
.. option:: -c ceph.conf, --conf=ceph.conf
|
|
|
|
Use *ceph.conf* configuration file instead of the default
|
|
``/etc/ceph/ceph.conf`` to determine monitor addresses during
|
|
startup.
|
|
|
|
.. option:: -m monaddress[:port]
|
|
|
|
Connect to specified monitor (instead of looking through
|
|
``ceph.conf``).
|
|
|
|
|
|
Availability
|
|
============
|
|
|
|
**ceph-mon** 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
|
|
========
|
|
|
|
:doc:`ceph <ceph>`\(8),
|
|
:doc:`ceph-mon <ceph-mon>`\(8),
|
|
:doc:`ceph-osd <ceph-osd>`\(8)
|