mirror of https://github.com/ceph/ceph
537 lines
19 KiB
Plaintext
537 lines
19 KiB
Plaintext
##
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# Sample ceph ceph.conf file.
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##
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# This file defines cluster membership, the various locations
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# that Ceph stores data, and any other runtime options.
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# If a 'host' is defined for a daemon, the init.d start/stop script will
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# verify that it matches the hostname (or else ignore it). If it is
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# not defined, it is assumed that the daemon is intended to start on
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# the current host (e.g., in a setup with a startup.conf on each
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# node).
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## Metavariables
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# $cluster ; Expands to the Ceph Storage Cluster name. Useful
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# ; when running multiple Ceph Storage Clusters
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# ; on the same hardware.
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# ; Example: /etc/ceph/$cluster.keyring
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# ; (Default: ceph)
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#
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# $type ; Expands to one of mds, osd, or mon, depending on
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# ; the type of the instant daemon.
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# ; Example: /var/lib/ceph/$type
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#
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# $id ; Expands to the daemon identifier. For osd.0, this
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# ; would be 0; for mds.a, it would be a.
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# ; Example: /var/lib/ceph/$type/$cluster-$id
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#
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# $host ; Expands to the host name of the instant daemon.
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#
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# $name ; Expands to $type.$id.
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# ; Example: /var/run/ceph/$cluster-$name.asok
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[global]
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### http://ceph.com/docs/master/rados/configuration/general-config-ref/
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;fsid = {UUID} # use `uuidgen` to generate your own UUID
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;public network = 192.168.0.0/24
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;cluster network = 192.168.0.0/24
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# Each running Ceph daemon has a running process identifier (PID) file.
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# The PID file is generated upon start-up.
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# Type: String (optional)
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# (Default: N/A). The default path is /var/run/$cluster/$name.pid.
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pid file = /var/run/ceph/$name.pid
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# If set, when the Ceph Storage Cluster starts, Ceph sets the max open fds
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# at the OS level (i.e., the max # of file descriptors).
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# It helps prevents Ceph OSD Daemons from running out of file descriptors.
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# Type: 64-bit Integer (optional)
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# (Default: 0)
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;max open files = 131072
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### http://ceph.com/docs/master/rados/operations/authentication
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### http://ceph.com/docs/master/rados/configuration/auth-config-ref/
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# If enabled, the Ceph Storage Cluster daemons (i.e., ceph-mon, ceph-osd,
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# and ceph-mds) must authenticate with each other.
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# Type: String (optional); Valid settings are "cephx" or "none".
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# (Default: cephx)
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auth cluster required = cephx
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# If enabled, the Ceph Storage Cluster daemons require Ceph Clients to
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# authenticate with the Ceph Storage Cluster in order to access Ceph
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# services.
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# Type: String (optional); Valid settings are "cephx" or "none".
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# (Default: cephx)
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auth service required = cephx
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# If enabled, the Ceph Client requires the Ceph Storage Cluster to
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# authenticate with the Ceph Client.
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# Type: String (optional); Valid settings are "cephx" or "none".
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# (Default: cephx)
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auth client required = cephx
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# If set to true, Ceph requires signatures on all message traffic between
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# the Ceph Client and the Ceph Storage Cluster, and between daemons
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# comprising the Ceph Storage Cluster.
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# Type: Boolean (optional)
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# (Default: false)
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;cephx require signatures = true
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# kernel RBD client do not support authentication yet:
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cephx cluster require signatures = true
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cephx service require signatures = false
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# The path to the keyring file.
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# Type: String (optional)
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# Default: /etc/ceph/$cluster.$name.keyring,/etc/ceph/$cluster.keyring,/etc/ceph/keyring,/etc/ceph/keyring.bin
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;keyring = /etc/ceph/$cluster.$name.keyring
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### http://ceph.com/docs/master/rados/configuration/pool-pg-config-ref/
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## Replication level, number of data copies.
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# Type: 32-bit Integer
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# (Default: 3)
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;osd pool default size = 3
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## Replication level in degraded state, less than 'osd pool default size' value.
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# Sets the minimum number of written replicas for objects in the
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# pool in order to acknowledge a write operation to the client. If
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# minimum is not met, Ceph will not acknowledge the write to the
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# client. This setting ensures a minimum number of replicas when
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# operating in degraded mode.
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# Type: 32-bit Integer
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# (Default: 0), which means no particular minimum. If 0, minimum is size - (size / 2).
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;osd pool default min size = 2
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## Ensure you have a realistic number of placement groups. We recommend
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## approximately 100 per OSD. E.g., total number of OSDs multiplied by 100
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## divided by the number of replicas (i.e., osd pool default size). So for
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## 10 OSDs and osd pool default size = 3, we'd recommend approximately
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## (100 * 10) / 3 = 333
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# Description: The default number of placement groups for a pool. The
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# default value is the same as pg_num with mkpool.
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# Type: 32-bit Integer
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# (Default: 8)
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;osd pool default pg num = 128
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# Description: The default number of placement groups for placement for a
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# pool. The default value is the same as pgp_num with mkpool.
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# PG and PGP should be equal (for now).
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# Type: 32-bit Integer
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# (Default: 8)
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;osd pool default pgp num = 128
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# The default CRUSH ruleset to use when creating a pool
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# Type: 32-bit Integer
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# (Default: 0)
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;osd pool default crush rule = 0
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# The bucket type to use for chooseleaf in a CRUSH rule.
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# Uses ordinal rank rather than name.
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# Type: 32-bit Integer
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# (Default: 1) Typically a host containing one or more Ceph OSD Daemons.
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;osd crush chooseleaf type = 1
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### http://ceph.com/docs/master/rados/troubleshooting/log-and-debug/
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# The location of the logging file for your cluster.
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# Type: String
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# Required: No
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# Default: /var/log/ceph/$cluster-$name.log
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;log file = /var/log/ceph/$cluster-$name.log
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# Determines if logging messages should appear in syslog.
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# Type: Boolean
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# Required: No
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# (Default: false)
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;log to syslog = true
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### http://ceph.com/docs/master/rados/configuration/ms-ref/
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# Enable if you want your daemons to bind to IPv6 address instead of
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# IPv4 ones. (Not required if you specify a daemon or cluster IP.)
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# Type: Boolean
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# (Default: false)
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;ms bind ipv6 = true
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##################
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## Monitors
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## You need at least one. You need at least three if you want to
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## tolerate any node failures. Always create an odd number.
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[mon]
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### http://ceph.com/docs/master/rados/configuration/mon-config-ref/
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### http://ceph.com/docs/master/rados/configuration/mon-osd-interaction/
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# The IDs of initial monitors in a cluster during startup.
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# If specified, Ceph requires an odd number of monitors to form an
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# initial quorum (e.g., 3).
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# Type: String
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# (Default: None)
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;mon initial members = mycephhost
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;mon host = cephhost01,cephhost02
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;mon addr = 192.168.0.101,192.168.0.102
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# The monitor's data location
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# Default: /var/lib/ceph/mon/$cluster-$id
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;mon data = /var/lib/ceph/mon/$name
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# The clock drift in seconds allowed between monitors.
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# Type: Float
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# (Default: .050)
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;mon clock drift allowed = .15
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# Exponential backoff for clock drift warnings
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# Type: Float
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# (Default: 5)
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;mon clock drift warn backoff = 30 # Tell the monitor to backoff from this warning for 30 seconds
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# The percentage of disk space used before an OSD is considered full.
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# Type: Float
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# (Default: .95)
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;mon osd full ratio = .95
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# The percentage of disk space used before an OSD is considered nearfull.
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# Type: Float
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# (Default: .85)
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;mon osd nearfull ratio = .85
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# The number of seconds Ceph waits before marking a Ceph OSD
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# Daemon "down" and "out" if it doesn't respond.
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# Type: 32-bit Integer
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# (Default: 600)
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;mon osd down out interval = 600
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# The grace period in seconds before declaring unresponsive Ceph OSD
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# Daemons "down".
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# Type: 32-bit Integer
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# (Default: 900)
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;mon osd report timeout = 300
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### http://ceph.com/docs/master/rados/troubleshooting/log-and-debug/
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# logging, for debugging monitor crashes, in order of
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# their likelihood of being helpful :)
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;debug ms = 1
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;debug mon = 20
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;debug paxos = 20
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;debug auth = 20
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;[mon.alpha]
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; host = alpha
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; mon addr = 192.168.0.10:6789
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;[mon.beta]
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; host = beta
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; mon addr = 192.168.0.11:6789
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;[mon.gamma]
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; host = gamma
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; mon addr = 192.168.0.12:6789
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##################
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## Metadata servers
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# You must deploy at least one metadata server to use CephFS. There is
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# experimental support for running multiple metadata servers. Do not run
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# multiple metadata servers in production.
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[mds]
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### http://ceph.com/docs/master/cephfs/mds-config-ref/
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# where the mds keeps it's secret encryption keys
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;keyring = /var/lib/ceph/mds/$name/keyring
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# Determines whether a 'ceph-mds' daemon should poll and
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# replay the log of an active MDS (hot standby).
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# Type: Boolean
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# (Default: false)
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;mds standby replay = true
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; mds logging to debug issues.
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;debug ms = 1
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;debug mds = 20
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;debug journaler = 20
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# The number of inodes to cache.
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# Type: 32-bit Integer
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# (Default: 100000)
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;mds cache size = 250000
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;[mds.alpha]
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; host = alpha
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;[mds.beta]
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; host = beta
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##################
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## osd
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# You need at least one. Two or more if you want data to be replicated.
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# Define as many as you like.
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[osd]
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### http://ceph.com/docs/master/rados/configuration/osd-config-ref/
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# The path to the OSDs data.
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# You must create the directory when deploying Ceph.
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# You should mount a drive for OSD data at this mount point.
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# We do not recommend changing the default.
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# Type: String
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# Default: /var/lib/ceph/osd/$cluster-$id
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;osd data = /var/lib/ceph/osd/$name
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## You can change the number of recovery operations to speed up recovery
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## or slow it down if your machines can't handle it
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# The number of active recovery requests per OSD at one time.
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# More requests will accelerate recovery, but the requests
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# places an increased load on the cluster.
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# Type: 32-bit Integer
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# (Default: 5)
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;osd recovery max active = 3
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# The maximum number of backfills allowed to or from a single OSD.
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# Type: 64-bit Integer
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# (Default: 10)
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;osd max backfills = 5
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# The maximum number of simultaneous scrub operations for a Ceph OSD Daemon.
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# Type: 32-bit Int
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# (Default: 1)
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;osd max scrubs = 2
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# You may add settings for ceph-deploy so that it will create and mount
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# the correct type of file system. Remove the comment `#` character for
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# the following settings and replace the values in parenthesis
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# with appropriate values, or leave the following settings commented
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# out to accept the default values.
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#osd mkfs type = {fs-type}
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#osd mkfs options {fs-type} = {mkfs options} # default for xfs is "-f"
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#osd mount options {fs-type} = {mount options} # default mount option is "rw, noatime"
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;osd mkfs type = btrfs
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;osd mount options btrfs = noatime,nodiratime
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## Ideally, make this a separate disk or partition. A few
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## hundred MB should be enough; more if you have fast or many
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## disks. You can use a file under the osd data dir if need be
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## (e.g. /data/$name/journal), but it will be slower than a
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## separate disk or partition.
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# The path to the OSD's journal. This may be a path to a file or a block
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# device (such as a partition of an SSD). If it is a file, you must
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# create the directory to contain it.
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# We recommend using a drive separate from the osd data drive.
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# Type: String
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# Default: /var/lib/ceph/osd/$cluster-$id/journal
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;osd journal = /var/lib/ceph/osd/$name/journal
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# Check log files for corruption. Can be computationally expensive.
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# Type: Boolean
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# (Default: false)
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;osd check for log corruption = true
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### http://ceph.com/docs/master/rados/configuration/journal-ref/
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# The size of the journal in megabytes. If this is 0,
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# and the journal is a block device, the entire block device is used.
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# Since v0.54, this is ignored if the journal is a block device,
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# and the entire block device is used.
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# Type: 32-bit Integer
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# (Default: 5120)
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# Recommended: Begin with 1GB. Should be at least twice the product
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# of the expected speed multiplied by "filestore max sync interval".
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;osd journal size = 2048 ; journal size, in megabytes
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## If you want to run the journal on a tmpfs, disable DirectIO
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# Enables direct i/o to the journal.
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# Requires "journal block align" set to "true".
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# Type: Boolean
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# Required: Yes when using aio.
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# (Default: true)
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;journal dio = false
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# osd logging to debug osd issues, in order of likelihood of being helpful
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;debug ms = 1
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;debug osd = 20
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;debug filestore = 20
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;debug journal = 20
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### http://ceph.com/docs/master/rados/configuration/filestore-config-ref/
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# The maximum interval in seconds for synchronizing the filestore.
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# Type: Double (optional)
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# (Default: 5)
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;filestore max sync interval = 5
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# Enable snapshots for a btrfs filestore.
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# Type: Boolean
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# Required: No. Only used for btrfs.
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# (Default: true)
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;filestore btrfs snap = false
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# Enables the filestore flusher.
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# Type: Boolean
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# Required: No
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# (Default: false)
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;filestore flusher = true
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# Defines the maximum number of in progress operations the file store
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# accepts before blocking on queuing new operations.
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# Type: Integer
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# Required: No. Minimal impact on performance.
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# (Default: 500)
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;filestore queue max ops = 500
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## Filestore and OSD settings can be tweak to achieve better performance
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### http://ceph.com/docs/master/rados/configuration/filestore-config-ref/#misc
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# Min number of files in a subdir before merging into parent NOTE: A negative value means to disable subdir merging
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# Type: Integer
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# Required: No
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# Default: 10
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;filestore merge threshold = 10
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# filestore_split_multiple * abs(filestore_merge_threshold) * 16 is the maximum number of files in a subdirectory before splitting into child directories.
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# Type: Integer
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# Required: No
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# Default: 2
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;filestore split multiple = 2
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# The number of filesystem operation threads that execute in parallel.
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# Type: Integer
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# Required: No
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# Default: 2
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;filestore op threads = 4
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# The number of threads to service Ceph OSD Daemon operations. Set to 0 to disable it. Increasing the number may increase the request processing rate.
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# Type: 32-bit Integer
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# Default: 2
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;osd op threads = 2
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## CRUSH
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# By default OSDs update their details (location, weight and root) on the CRUSH map during startup
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# Type: Boolean
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# Required: No;
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# (Default: true)
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;osd crush update on start = false
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;[osd.0]
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; host = delta
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;[osd.1]
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; host = epsilon
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;[osd.2]
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; host = zeta
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;[osd.3]
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; host = eta
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##################
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## client settings
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[client]
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### http://ceph.com/docs/master/rbd/rbd-config-ref/
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# Enable caching for RADOS Block Device (RBD).
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# Type: Boolean
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# Required: No
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# (Default: true)
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rbd cache = true
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# The RBD cache size in bytes.
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# Type: 64-bit Integer
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# Required: No
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# (Default: 32 MiB)
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;rbd cache size = 33554432
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# The dirty limit in bytes at which the cache triggers write-back.
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# If 0, uses write-through caching.
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# Type: 64-bit Integer
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# Required: No
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# Constraint: Must be less than rbd cache size.
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# (Default: 24 MiB)
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;rbd cache max dirty = 25165824
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# The dirty target before the cache begins writing data to the data storage.
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# Does not block writes to the cache.
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# Type: 64-bit Integer
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# Required: No
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# Constraint: Must be less than rbd cache max dirty.
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# (Default: 16 MiB)
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;rbd cache target dirty = 16777216
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# The number of seconds dirty data is in the cache before writeback starts.
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# Type: Float
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# Required: No
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# (Default: 1.0)
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;rbd cache max dirty age = 1.0
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# Start out in write-through mode, and switch to write-back after the
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# first flush request is received. Enabling this is a conservative but
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# safe setting in case VMs running on rbd are too old to send flushes,
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# like the virtio driver in Linux before 2.6.32.
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# Type: Boolean
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# Required: No
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# (Default: true)
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;rbd cache writethrough until flush = true
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# The Ceph admin socket allows you to query a daemon via a socket interface
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# From a client perspective this can be a virtual machine using librbd
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# Type: String
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# Required: No
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;admin socket = /var/run/ceph/$cluster-$type.$id.$pid.$cctid.asok
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##################
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## radosgw client settings
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[client.radosgw.gateway]
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### http://ceph.com/docs/master/radosgw/config-ref/
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# Sets the location of the data files for Ceph Object Gateway.
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# You must create the directory when deploying Ceph.
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# We do not recommend changing the default.
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# Type: String
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# Default: /var/lib/ceph/radosgw/$cluster-$id
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;rgw data = /var/lib/ceph/radosgw/$name
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# Client's hostname
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;host = ceph-radosgw
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# where the radosgw keeps it's secret encryption keys
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;keyring = /etc/ceph/ceph.client.radosgw.keyring
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# FastCgiExternalServer uses this socket.
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# If you do not specify a socket path, Ceph Object Gateway will not run as an external server.
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# The path you specify here must be the same as the path specified in the rgw.conf file.
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# Type: String
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# Default: None
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;rgw socket path = /var/run/ceph/ceph.radosgw.gateway.fastcgi.sock
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# The location of the logging file for your radosgw.
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# Type: String
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# Required: No
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# Default: /var/log/ceph/$cluster-$name.log
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;log file = /var/log/ceph/client.radosgw.gateway.log
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# Enable 100-continue if it is operational.
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# Type: Boolean
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# Default: true
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;rgw print continue = false
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# The DNS name of the served domain.
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# Type: String
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# Default: None
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;rgw dns name = radosgw.ceph.internal
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