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Bug #1096 » ceph.conf

changping Wu, 05/30/2011 08:29 PM

 
;
; Sample ceph ceph.conf file.
;
; This file defines cluster membership, the various locations
; that Ceph stores data, and any other runtime options.

; If a 'host' is defined for a daemon, the start/stop script will
; verify that it matches the hostname (or else ignore it). If it is
; not defined, it is assumed that the daemon is intended to start on
; the current host (e.g., in a setup with a startup.conf on each
; node).

; The variables $type, $id and $name are available to use in paths
; $type = The type of daemon, possible values: mon, mds and osd
; $id = The ID of the daemon, for mon.alpha, $id will be alpha
; $name = $type.$id

; For example:
; osd.0
; $type = osd
; $id = 0
; $name = osd.0

; mon.beta
; $type = mon
; $id = beta
; $name = mon.beta

; global
[global]
; enable secure authentication
;auth supported = cephx

; allow ourselves to open a lot of files
max open files = 131072

; set log file
log file = /var/log/ceph/$name.log
;log_to_syslog = true ; uncomment this line to log to syslog

; set up pid files
pid file = /var/run/ceph/$name.pid

; If you want to run a IPv6 cluster, set this to true. Dual-stack isn't possible
;ms bind ipv6 = true

; monitors
; You need at least one. You need at least three if you want to
; tolerate any node failures. Always create an odd number.
[mon]
mon data = /mnt/data/$name

; If you are using for example the RADOS Gateway and want to have your newly created
; pools a higher replication level, you can set a default
osd pool default size = 2

; You can also specify a CRUSH rule for new pools
; Wiki: http://ceph.newdream.net/wiki/Custom_data_placement_with_CRUSH
osd pool default crush rule = 4

; Timing is critical for monitors, but if you want to allow the clocks to drift a
; bit more, you can specify the max drift.
mon clock drift allowed = 1

; Tell the monitor to backoff from this warning for 30 seconds
mon clock drift warn backoff = 30

; logging, for debugging monitor crashes, in order of
; their likelihood of being helpful :)
;debug ms = 30
;debug mon = 30
;debug paxos = 30
;debug auth = 30

[mon.alpha]
host = ubuntu-client0
mon addr = 172.16.10.176:6789

[mon.beta]
host = ubuntu-client0
mon addr = 172.16.10.176:6790

;[mon.gamma]
; host = gamma
; mon addr = 192.168.0.12:6789

; mds
; You need at least one. Define two to get a standby.
[mds]
; where the mds keeps it's secret encryption keys
keyring = /mnt/data/keyring.$name

; mds logging to debug issues.
debug ms = 1
debug mds = 20

[mds.alpha]
host = ubuntu-client0

[mds.beta]
host = ubuntu-client0

; osd
; You need at least one. Two if you want data to be replicated.
; Define as many as you like.
[osd]
; This is where the btrfs volume will be mounted.
osd data = /mnt/data/$name

; Ideally, make this a separate disk or partition. A few
; hundred MB should be enough; more if you have fast or many
; disks. You can use a file under the osd data dir if need be
; (e.g. /data/$name/journal), but it will be slower than a
; separate disk or partition.

; This is an example of a file-based journal.
osd journal = /mnt/data/$name/journal
osd journal size = 1000 ; journal size, in megabytes

; If you want to run the journal on a tmpfs, disable DirectIO
;journal dio = false

; You can change the number of recovery operations to speed up recovery
; or slow it down if your machines can't handle it
osd recovery max active = 2

; osd logging to debug osd issues, in order of likelihood of being
; helpful
;debug ms = 30
;debug osd = 30
;debug filestore = 30
;debug journal = 30
btrfs options = defaults,async,rw,noatime,nodiratime

[osd.0]
host = ubuntu-client0

; if 'btrfs devs' is not specified, you're responsible for
; setting up the 'osd data' dir. if it is not btrfs, things
; will behave up until you try to recover from a crash (which
; usually fine for basic testing).
btrfs devs = /dev/sda5

; If you want to specify some other mount options, you can do so.
; The default values are rw,noatime
;btrfs options = rw,noatime

[osd.1]
host = ubuntu-client0
btrfs devs = /dev/sda6

;[osd.2]
; host = zeta
; btrfs devs = /dev/sdx

;[osd.3]
; host = eta
; btrfs devs = /dev/sdy
(10-10/12)