1CEPH-MDS(8)                          Ceph                          CEPH-MDS(8)
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NAME

6       ceph-mds - ceph metadata server daemon
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SYNOPSIS

9       ceph-mds -i <ID> [flags]
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DESCRIPTION

13       ceph-mds  is  the  metadata server daemon for the Ceph distributed file
14       system. One or more instances of ceph-mds collectively manage the  file
15       system namespace, coordinating access to the shared OSD cluster.
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17       Each  ceph-mds  daemon  instance should have a unique name. The name is
18       used to identify daemon instances in the ceph.conf.
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20       Once the daemon has started, the monitor cluster will  normally  assign
21       it a logical rank, or put it in a standby pool to take over for another
22       daemon that crashes. Some of the specified options can cause other  be‐
23       haviors.
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OPTIONS

26       -f, --foreground
27              Foreground:  do not daemonize after startup (run in foreground).
28              Do not generate a pid file. Useful when run via ceph-run(8).
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30       -d     Debug mode: like -f, but also send all log output to stderr.
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32       --setuser userorgid
33              Set uid after starting.  If a username is  specified,  the  user
34              record  is looked up to get a uid and a gid, and the gid is also
35              set as well, unless --setgroup is also specified.
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37       --setgroup grouporgid
38              Set gid after starting.  If a group name is specified the  group
39              record is looked up to get a gid.
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41       -c ceph.conf, --conf=ceph.conf
42              Use   ceph.conf   configuration  file  instead  of  the  default
43              /etc/ceph/ceph.conf  to  determine  monitor   addresses   during
44              startup.
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46       -m monaddress[:port]
47              Connect   to  specified  monitor  (instead  of  looking  through
48              ceph.conf).
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50       --id/-i ID
51              Set ID portion of the MDS name.
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AVAILABILITY

54       ceph-mds is part of Ceph, a massively scalable,  open-source,  distrib‐
55       uted  storage  system.  Please  refer  to  the  Ceph  documentation  at
56       http://ceph.com/docs for more information.
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SEE ALSO

59       ceph(8), ceph-mon(8), ceph-osd(8)
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62       2010-2021, Inktank Storage, Inc. and contributors. Licensed under  Cre‐
63       ative Commons Attribution Share Alike 3.0 (CC-BY-SA-3.0)
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68dev                              Sep 28, 2021                      CEPH-MDS(8)
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