ceph/doc/man/8/ceph.rst
Haomai Wang 7841455ca6 Mon: Make ceph osd metadata support dump all osds
Impl #12801
Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
2015-08-30 20:56:26 +08:00

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:orphan:
==================================
ceph -- ceph administration tool
==================================
.. program:: ceph
Synopsis
========
| **ceph** **auth** [ *add* \| *caps* \| *del* \| *export* \| *get* \| *get-key* \| *get-or-create* \| *get-or-create-key* \| *import* \| *list* \| *print-key* \| *print_key* ] ...
| **ceph** **compact**
| **ceph** **config-key** [ *del* | *exists* | *get* | *list* | *put* ] ...
| **ceph** **daemon** *<name>* \| *<path>* *<command>* ...
| **ceph** **daemonperf** *<name>* \| *<path>* [ *interval* [ *count* ] ]
| **ceph** **df** *{detail}*
| **ceph** **fs** [ *ls* \| *new* \| *reset* \| *rm* ] ...
| **ceph** **fsid**
| **ceph** **health** *{detail}*
| **ceph** **heap** [ *dump* \| *start_profiler* \| *stop_profiler* \| *release* \| *stats* ] ...
| **ceph** **injectargs** *<injectedargs>* [ *<injectedargs>*... ]
| **ceph** **log** *<logtext>* [ *<logtext>*... ]
| **ceph** **mds** [ *add_data_pool* \| *cluster_down* \| *cluster_up* \| *compat* \| *deactivate* \| *dump* \| *fail* \| *getmap* \| *newfs* \| *remove_data_pool* \| *rm* \| *rmfailed* \| *set* \| *set_max_mds* \| *set_state* \| *setmap* \| *stat* \| *stop* \| *tell* ] ...
| **ceph** **mon** [ *add* \| *dump* \| *getmap* \| *remove* \| *stat* ] ...
| **ceph** **mon_status**
| **ceph** **osd** [ *blacklist* \| *blocked-by* \| *create* \| *deep-scrub* \| *df* \| *down* \| *dump* \| *erasure-code-profile* \| *find* \| *getcrushmap* \| *getmap* \| *getmaxosd* \| *in* \| *lspools* \| *map* \| *metadata* \| *out* \| *pause* \| *perf* \| *pg-temp* \| *primary-affinity* \| *primary-temp* \| *repair* \| *reweight* \| *reweight-by-pg* \| *rm* \| *scrub* \| *set* \| *setcrushmap* \| *setmaxosd* \| *stat* \| *thrash* \| *tree* \| *unpause* \| *unset* ] ...
| **ceph** **osd** **crush** [ *add* \| *add-bucket* \| *create-or-move* \| *dump* \| *get-tunable* \| *link* \| *move* \| *remove* \| *rename-bucket* \| *reweight* \| *reweight-all* \| *reweight-subtree* \| *rm* \| *rule* \| *set* \| *set-tunable* \| *show-tunables* \| *tunables* \| *unlink* ] ...
| **ceph** **osd** **pool** [ *create* \| *delete* \| *get* \| *get-quota* \| *ls* \| *mksnap* \| *rename* \| *rmsnap* \| *set* \| *set-quota* \| *stats* ] ...
| **ceph** **osd** **tier** [ *add* \| *add-cache* \| *cache-mode* \| *remove* \| *remove-overlay* \| *set-overlay* ] ...
| **ceph** **pg** [ *debug* \| *deep-scrub* \| *dump* \| *dump_json* \| *dump_pools_json* \| *dump_stuck* \| *force_create_pg* \| *getmap* \| *ls* \| *ls-by-osd* \| *ls-by-pool* \| *ls-by-primary* \| *map* \| *repair* \| *scrub* \| *send_pg_creates* \| *set_full_ratio* \| *set_nearfull_ratio* \| *stat* ] ...
| **ceph** **quorum** [ *enter* \| *exit* ]
| **ceph** **quorum_status**
| **ceph** **report** { *<tags>* [ *<tags>...* ] }
| **ceph** **scrub**
| **ceph** **status**
| **ceph** **sync** **force** {--yes-i-really-mean-it} {--i-know-what-i-am-doing}
| **ceph** **tell** *<name (type.id)> <args> [<args>...]*
| **ceph** **version**
Description
===========
:program:`ceph` is a control utility which is used for manual deployment and maintenance
of a Ceph cluster. It provides a diverse set of commands that allows deployment of
monitors, OSDs, placement groups, MDS and overall maintenance, administration
of the cluster.
Commands
========
auth
----
Manage authentication keys. It is used for adding, removing, exporting
or updating of authentication keys for a particular entity such as a monitor or
OSD. It uses some additional subcommands.
Subcommand ``add`` adds authentication info for a particular entity from input
file, or random key if no input is given and/or any caps specified in the command.
Usage::
ceph auth add <entity> {<caps> [<caps>...]}
Subcommand ``caps`` updates caps for **name** from caps specified in the command.
Usage::
ceph auth caps <entity> <caps> [<caps>...]
Subcommand ``del`` deletes all caps for ``name``.
Usage::
ceph auth del <entity>
Subcommand ``export`` writes keyring for requested entity, or master keyring if
none given.
Usage::
ceph auth export {<entity>}
Subcommand ``get`` writes keyring file with requested key.
Usage::
ceph auth get <entity>
Subcommand ``get-key`` displays requested key.
Usage::
ceph auth get-key <entity>
Subcommand ``get-or-create`` adds authentication info for a particular entity
from input file, or random key if no input given and/or any caps specified in the
command.
Usage::
ceph auth get-or-create <entity> {<caps> [<caps>...]}
Subcommand ``get-or-create-key`` gets or adds key for ``name`` from system/caps
pairs specified in the command. If key already exists, any given caps must match
the existing caps for that key.
Usage::
ceph auth get-or-create-key <entity> {<caps> [<caps>...]}
Subcommand ``import`` reads keyring from input file.
Usage::
ceph auth import
Subcommand ``list`` lists authentication state.
Usage::
ceph auth list
Subcommand ``print-key`` displays requested key.
Usage::
ceph auth print-key <entity>
Subcommand ``print_key`` displays requested key.
Usage::
ceph auth print_key <entity>
compact
-------
Causes compaction of monitor's leveldb storage.
Usage::
ceph compact
config-key
----------
Manage configuration key. It uses some additional subcommands.
Subcommand ``del`` deletes configuration key.
Usage::
ceph config-key del <key>
Subcommand ``exists`` checks for configuration keys existence.
Usage::
ceph config-key exists <key>
Subcommand ``get`` gets the configuration key.
Usage::
ceph config-key get <key>
Subcommand ``list`` lists configuration keys.
Usage::
ceph config-key list
Subcommand ``put`` puts configuration key and values.
Usage::
ceph config-key put <key> {<val>}
daemon
------
Submit admin-socket commands.
Usage::
ceph daemon {daemon_name|socket_path} {command} ...
Example::
ceph daemon osd.0 help
daemonperf
----------
Watch performance counters from a Ceph daemon.
Usage::
ceph daemonperf {daemon_name|socket_path} [{interval} [{count}]]
df
--
Show cluster's free space status.
Usage::
ceph df {detail}
fs
--
Manage cephfs filesystems. It uses some additional subcommands.
Subcommand ``ls`` to list filesystems
Usage::
ceph fs ls
Subcommand ``new`` to make a new filesystem using named pools <metadata> and <data>
Usage::
ceph fs new <fs_name> <metadata> <data>
Subcommand ``reset`` is used for disaster recovery only: reset to a single-MDS map
Usage::
ceph fs reset <fs_name> {--yes-i-really-mean-it}
Subcommand ``rm`` to disable the named filesystem
Usage::
ceph fs rm <fs_name> {--yes-i-really-mean-it}
fsid
----
Show cluster's FSID/UUID.
Usage::
ceph fsid
health
------
Show cluster's health.
Usage::
ceph health {detail}
heap
----
Show heap usage info (available only if compiled with tcmalloc)
Usage::
ceph heap dump|start_profiler|stop_profiler|release|stats
injectargs
----------
Inject configuration arguments into monitor.
Usage::
ceph injectargs <injected_args> [<injected_args>...]
log
---
Log supplied text to the monitor log.
Usage::
ceph log <logtext> [<logtext>...]
mds
---
Manage metadata server configuration and administration. It uses some
additional subcommands.
Subcommand ``add_data_pool`` adds data pool.
Usage::
ceph mds add_data_pool <pool>
Subcommand ``cluster_down`` takes mds cluster down.
Usage::
ceph mds cluster_down
Subcommand ``cluster_up`` brings mds cluster up.
Usage::
ceph mds cluster_up
Subcommand ``compat`` manages compatible features. It uses some additional
subcommands.
Subcommand ``rm_compat`` removes compatible feature.
Usage::
ceph mds compat rm_compat <int[0-]>
Subcommand ``rm_incompat`` removes incompatible feature.
Usage::
ceph mds compat rm_incompat <int[0-]>
Subcommand ``show`` shows mds compatibility settings.
Usage::
ceph mds compat show
Subcommand ``deactivate`` stops mds.
Usage::
ceph mds deactivate <who>
Subcommand ``dump`` dumps information, optionally from epoch.
Usage::
ceph mds dump {<int[0-]>}
Subcommand ``fail`` forces mds to status fail.
Usage::
ceph mds fail <who>
Subcommand ``getmap`` gets MDS map, optionally from epoch.
Usage::
ceph mds getmap {<int[0-]>}
Subcommand ``newfs`` makes new filesystem using pools <metadata> and <data>.
Usage::
ceph mds newfs <int[0-]> <int[0-]> {--yes-i-really-mean-it}
Subcommand ``remove_data_pool`` removes data pool.
Usage::
ceph mds remove_data_pool <pool>
Subcommand ``rm`` removes inactive mds.
Usage::
ceph mds rm <int[0-]> <name> (type.id)>
Subcommand ``rmfailed`` removes failed mds.
Usage::
ceph mds rmfailed <int[0-]>
Subcommand ``set`` set mds parameter <var> to <val>
Usage::
ceph mds set max_mds|max_file_size|allow_new_snaps|inline_data <va> {<confirm>}
Subcommand ``set_max_mds`` sets max MDS index.
Usage::
ceph mds set_max_mds <int[0-]>
Subcommand ``set_state`` sets mds state of <gid> to <numeric-state>.
Usage::
ceph mds set_state <int[0-]> <int[0-20]>
Subcommand ``setmap`` sets mds map; must supply correct epoch number.
Usage::
ceph mds setmap <int[0-]>
Subcommand ``stat`` shows MDS status.
Usage::
ceph mds stat
Subcommand ``stop`` stops mds.
Usage::
ceph mds stop <who>
Subcommand ``tell`` sends command to particular mds.
Usage::
ceph mds tell <who> <args> [<args>...]
mon
---
Manage monitor configuration and administration. It uses some additional
subcommands.
Subcommand ``add`` adds new monitor named <name> at <addr>.
Usage::
ceph mon add <name> <IPaddr[:port]>
Subcommand ``dump`` dumps formatted monmap (optionally from epoch)
Usage::
ceph mon dump {<int[0-]>}
Subcommand ``getmap`` gets monmap.
Usage::
ceph mon getmap {<int[0-]>}
Subcommand ``remove`` removes monitor named <name>.
Usage::
ceph mon remove <name>
Subcommand ``stat`` summarizes monitor status.
Usage::
ceph mon stat
mon_status
----------
Reports status of monitors.
Usage::
ceph mon_status
osd
---
Manage OSD configuration and administration. It uses some additional
subcommands.
Subcommand ``blacklist`` manage blacklisted clients. It uses some additional
subcommands.
Subcommand ``add`` add <addr> to blacklist (optionally until <expire> seconds
from now)
Usage::
ceph osd blacklist add <EntityAddr> {<float[0.0-]>}
Subcommand ``ls`` show blacklisted clients
Usage::
ceph osd blacklist ls
Subcommand ``rm`` remove <addr> from blacklist
Usage::
ceph osd blacklist rm <EntityAddr>
Subcommand ``blocked-by`` prints a histogram of which OSDs are blocking their peers
Usage::
ceph osd blocked-by
Subcommand ``create`` creates new osd (with optional UUID and ID).
Usage::
ceph osd create {<uuid>} {<id>}
Subcommand ``crush`` is used for CRUSH management. It uses some additional
subcommands.
Subcommand ``add`` adds or updates crushmap position and weight for <name> with
<weight> and location <args>.
Usage::
ceph osd crush add <osdname (id|osd.id)> <float[0.0-]> <args> [<args>...]
Subcommand ``add-bucket`` adds no-parent (probably root) crush bucket <name> of
type <type>.
Usage::
ceph osd crush add-bucket <name> <type>
Subcommand ``create-or-move`` creates entry or moves existing entry for <name>
<weight> at/to location <args>.
Usage::
ceph osd crush create-or-move <osdname (id|osd.id)> <float[0.0-]> <args>
[<args>...]
Subcommand ``dump`` dumps crush map.
Usage::
ceph osd crush dump
Subcommand ``get-tunable`` get crush tunable straw_calc_version
Usage::
ceph osd crush get-tunable straw_calc_version
Subcommand ``link`` links existing entry for <name> under location <args>.
Usage::
ceph osd crush link <name> <args> [<args>...]
Subcommand ``move`` moves existing entry for <name> to location <args>.
Usage::
ceph osd crush move <name> <args> [<args>...]
Subcommand ``remove`` removes <name> from crush map (everywhere, or just at
<ancestor>).
Usage::
ceph osd crush remove <name> {<ancestor>}
Subcommand ``rename-bucket`` renames buchket <srcname> to <stname>
Usage::
ceph osd crush rename-bucket <srcname> <dstname>
Subcommand ``reweight`` change <name>'s weight to <weight> in crush map.
Usage::
ceph osd crush reweight <name> <float[0.0-]>
Subcommand ``reweight-all`` recalculate the weights for the tree to
ensure they sum correctly
Usage::
ceph osd crush reweight-all
Subcommand ``reweight-subtree`` changes all leaf items beneath <name>
to <weight> in crush map
Usage::
ceph osd crush reweight-subtree <name> <weight>
Subcommand ``rm`` removes <name> from crush map (everywhere, or just at
<ancestor>).
Usage::
ceph osd crush rm <name> {<ancestor>}
Subcommand ``rule`` is used for creating crush rules. It uses some additional
subcommands.
Subcommand ``create-erasure`` creates crush rule <name> for erasure coded pool
created with <profile> (default default).
Usage::
ceph osd crush rule create-erasure <name> {<profile>}
Subcommand ``create-simple`` creates crush rule <name> to start from <root>,
replicate across buckets of type <type>, using a choose mode of <firstn|indep>
(default firstn; indep best for erasure pools).
Usage::
ceph osd crush rule create-simple <name> <root> <type> {firstn|indep}
Subcommand ``dump`` dumps crush rule <name> (default all).
Usage::
ceph osd crush rule dump {<name>}
Subcommand ``list`` lists crush rules.
Usage::
ceph osd crush rule list
Subcommand ``ls`` lists crush rules.
Usage::
ceph osd crush rule ls
Subcommand ``rm`` removes crush rule <name>.
Usage::
ceph osd crush rule rm <name>
Subcommand ``set`` used alone, sets crush map from input file.
Usage::
ceph osd crush set
Subcommand ``set`` with osdname/osd.id update crushmap position and weight
for <name> to <weight> with location <args>.
Usage::
ceph osd crush set <osdname (id|osd.id)> <float[0.0-]> <args> [<args>...]
Subcommand ``set-tunable`` set crush tunable <tunable> to <value>. The only
tunable that can be set is straw_calc_version.
Usage::
ceph osd crush set-tunable straw_calc_version <value>
Subcommand ``show-tunables`` shows current crush tunables.
Usage::
ceph osd crush show-tunables
Subcommand ``tree`` shows the crush buckets and items in a tree view.
Usage::
ceph osd crush tree
Subcommand ``tunables`` sets crush tunables values to <profile>.
Usage::
ceph osd crush tunables legacy|argonaut|bobtail|firefly|hammer|optimal|default
Subcommand ``unlink`` unlinks <name> from crush map (everywhere, or just at
<ancestor>).
Usage::
ceph osd crush unlink <name> {<ancestor>}
Subcommand ``df`` shows OSD utilization
Usage::
ceph osd df {plain|tree}
Subcommand ``deep-scrub`` initiates deep scrub on specified osd.
Usage::
ceph osd deep-scrub <who>
Subcommand ``down`` sets osd(s) <id> [<id>...] down.
Usage::
ceph osd down <ids> [<ids>...]
Subcommand ``dump`` prints summary of OSD map.
Usage::
ceph osd dump {<int[0-]>}
Subcommand ``erasure-code-profile`` is used for managing the erasure code
profiles. It uses some additional subcommands.
Subcommand ``get`` gets erasure code profile <name>.
Usage::
ceph osd erasure-code-profile get <name>
Subcommand ``ls`` lists all erasure code profiles.
Usage::
ceph osd erasure-code-profile ls
Subcommand ``rm`` removes erasure code profile <name>.
Usage::
ceph osd erasure-code-profile rm <name>
Subcommand ``set`` creates erasure code profile <name> with [<key[=value]> ...]
pairs. Add a --force at the end to override an existing profile (IT IS RISKY).
Usage::
ceph osd erasure-code-profile set <name> {<profile> [<profile>...]}
Subcommand ``find`` find osd <id> in the CRUSH map and shows its location.
Usage::
ceph osd find <int[0-]>
Subcommand ``getcrushmap`` gets CRUSH map.
Usage::
ceph osd getcrushmap {<int[0-]>}
Subcommand ``getmap`` gets OSD map.
Usage::
ceph osd getmap {<int[0-]>}
Subcommand ``getmaxosd`` shows largest OSD id.
Usage::
ceph osd getmaxosd
Subcommand ``in`` sets osd(s) <id> [<id>...] in.
Usage::
ceph osd in <ids> [<ids>...]
Subcommand ``lost`` marks osd as permanently lost. THIS DESTROYS DATA IF NO
MORE REPLICAS EXIST, BE CAREFUL.
Usage::
ceph osd lost <int[0-]> {--yes-i-really-mean-it}
Subcommand ``ls`` shows all OSD ids.
Usage::
ceph osd ls {<int[0-]>}
Subcommand ``lspools`` lists pools.
Usage::
ceph osd lspools {<int>}
Subcommand ``map`` finds pg for <object> in <pool>.
Usage::
ceph osd map <poolname> <objectname>
Subcommand ``metadata`` fetches metadata for osd <id>.
Usage::
ceph osd metadata {int[0-]} (default all)
Subcommand ``out`` sets osd(s) <id> [<id>...] out.
Usage::
ceph osd out <ids> [<ids>...]
Subcommand ``pause`` pauses osd.
Usage::
ceph osd pause
Subcommand ``perf`` prints dump of OSD perf summary stats.
Usage::
ceph osd perf
Subcommand ``pg-temp`` set pg_temp mapping pgid:[<id> [<id>...]] (developers
only).
Usage::
ceph osd pg-temp <pgid> {<id> [<id>...]}
Subcommand ``pool`` is used for managing data pools. It uses some additional
subcommands.
Subcommand ``create`` creates pool.
Usage::
ceph osd pool create <poolname> <int[0-]> {<int[0-]>} {replicated|erasure}
{<erasure_code_profile>} {<ruleset>} {<int>}
Subcommand ``delete`` deletes pool.
Usage::
ceph osd pool delete <poolname> {<poolname>} {--yes-i-really-really-mean-it}
Subcommand ``get`` gets pool parameter <var>.
Usage::
ceph osd pool get <poolname> size|min_size|crash_replay_interval|pg_num|
pgp_num|crush_ruleset|auid|write_fadvise_dontneed
Only for tiered pools::
ceph osd pool get <poolname> hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|
target_max_objects|target_max_bytes|cache_target_dirty_ratio|cache_target_dirty_high_ratio|
cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|
min_read_recency_for_promote
Only for erasure coded pools::
ceph osd pool get <poolname> erasure_code_profile
Use ``all`` to get all pool parameters that apply to the pool's type::
ceph osd pool get <poolname> all
Subcommand ``get-quota`` obtains object or byte limits for pool.
Usage::
ceph osd pool get-quota <poolname>
Subcommand ``ls`` list pools
Usage::
ceph osd pool ls {detail}
Subcommand ``mksnap`` makes snapshot <snap> in <pool>.
Usage::
ceph osd pool mksnap <poolname> <snap>
Subcommand ``rename`` renames <srcpool> to <destpool>.
Usage::
ceph osd pool rename <poolname> <poolname>
Subcommand ``rmsnap`` removes snapshot <snap> from <pool>.
Usage::
ceph osd pool rmsnap <poolname> <snap>
Subcommand ``set`` sets pool parameter <var> to <val>.
Usage::
ceph osd pool set <poolname> size|min_size|crash_replay_interval|pg_num|
pgp_num|crush_ruleset|hashpspool|nodelete|nopgchange|nosizechange|
hit_set_type|hit_set_period|hit_set_count|hit_set_fpp|debug_fake_ec_pool|
target_max_bytes|target_max_objects|cache_target_dirty_ratio|
cache_target_dirty_high_ratio|
cache_target_full_ratio|cache_min_flush_age|cache_min_evict_age|auid|
min_read_recency_for_promote|write_fadvise_dontneed
<val> {--yes-i-really-mean-it}
Subcommand ``set-quota`` sets object or byte limit on pool.
Usage::
ceph osd pool set-quota <poolname> max_objects|max_bytes <val>
Subcommand ``stats`` obtain stats from all pools, or from specified pool.
Usage::
ceph osd pool stats {<name>}
Subcommand ``primary-affinity`` adjust osd primary-affinity from 0.0 <=<weight>
<= 1.0
Usage::
ceph osd primary-affinity <osdname (id|osd.id)> <float[0.0-1.0]>
Subcommand ``primary-temp`` sets primary_temp mapping pgid:<id>|-1 (developers
only).
Usage::
ceph osd primary-temp <pgid> <id>
Subcommand ``repair`` initiates repair on a specified osd.
Usage::
ceph osd repair <who>
Subcommand ``reweight`` reweights osd to 0.0 < <weight> < 1.0.
Usage::
osd reweight <int[0-]> <float[0.0-1.0]>
Subcommand ``reweight-by-pg`` reweight OSDs by PG distribution
[overload-percentage-for-consideration, default 120].
Usage::
ceph osd reweight-by-pg {<int[100-]>} {<poolname> [<poolname...]}
Subcommand ``reweight-by-utilization`` reweight OSDs by utilization
[overload-percentage-for-consideration, default 120].
Usage::
ceph osd reweight-by-utilization {<int[100-]>}
Subcommand ``rm`` removes osd(s) <id> [<id>...] in the cluster.
Usage::
ceph osd rm <ids> [<ids>...]
Subcommand ``scrub`` initiates scrub on specified osd.
Usage::
ceph osd scrub <who>
Subcommand ``set`` sets <key>.
Usage::
ceph osd set full|pause|noup|nodown|noout|noin|nobackfill|
norebalance|norecover|noscrub|nodeep-scrub|notieragent
Subcommand ``setcrushmap`` sets crush map from input file.
Usage::
ceph osd setcrushmap
Subcommand ``setmaxosd`` sets new maximum osd value.
Usage::
ceph osd setmaxosd <int[0-]>
Subcommand ``stat`` prints summary of OSD map.
Usage::
ceph osd stat
Subcommand ``thrash`` thrashes OSDs for <num_epochs>.
Usage::
ceph osd thrash <int[0-]>
Subcommand ``tier`` is used for managing tiers. It uses some additional
subcommands.
Subcommand ``add`` adds the tier <tierpool> (the second one) to base pool <pool>
(the first one).
Usage::
ceph osd tier add <poolname> <poolname> {--force-nonempty}
Subcommand ``add-cache`` adds a cache <tierpool> (the second one) of size <size>
to existing pool <pool> (the first one).
Usage::
ceph osd tier add-cache <poolname> <poolname> <int[0-]>
Subcommand ``cache-mode`` specifies the caching mode for cache tier <pool>.
Usage::
ceph osd tier cache-mode <poolname> none|writeback|forward|readonly|
readforward|readproxy
Subcommand ``remove`` removes the tier <tierpool> (the second one) from base pool
<pool> (the first one).
Usage::
ceph osd tier remove <poolname> <poolname>
Subcommand ``remove-overlay`` removes the overlay pool for base pool <pool>.
Usage::
ceph osd tier remove-overlay <poolname>
Subcommand ``set-overlay`` set the overlay pool for base pool <pool> to be
<overlaypool>.
Usage::
ceph osd tier set-overlay <poolname> <poolname>
Subcommand ``tree`` prints OSD tree.
Usage::
ceph osd tree {<int[0-]>}
Subcommand ``unpause`` unpauses osd.
Usage::
ceph osd unpause
Subcommand ``unset`` unsets <key>.
Usage::
ceph osd unset full|pause|noup|nodown|noout|noin|nobackfill|
norebalance|norecover|noscrub|nodeep-scrub|notieragent
pg
--
It is used for managing the placement groups in OSDs. It uses some
additional subcommands.
Subcommand ``debug`` shows debug info about pgs.
Usage::
ceph pg debug unfound_objects_exist|degraded_pgs_exist
Subcommand ``deep-scrub`` starts deep-scrub on <pgid>.
Usage::
ceph pg deep-scrub <pgid>
Subcommand ``dump`` shows human-readable versions of pg map (only 'all' valid
with plain).
Usage::
ceph pg dump {all|summary|sum|delta|pools|osds|pgs|pgs_brief} [{all|summary|sum|delta|pools|osds|pgs|pgs_brief...]}
Subcommand ``dump_json`` shows human-readable version of pg map in json only.
Usage::
ceph pg dump_json {all|summary|sum|delta|pools|osds|pgs|pgs_brief} [{all|summary|sum|delta|pools|osds|pgs|pgs_brief...]}
Subcommand ``dump_pools_json`` shows pg pools info in json only.
Usage::
ceph pg dump_pools_json
Subcommand ``dump_stuck`` shows information about stuck pgs.
Usage::
ceph pg dump_stuck {inactive|unclean|stale|undersized|degraded [inactive|unclean|stale|undersized|degraded...]}
{<int>}
Subcommand ``force_create_pg`` forces creation of pg <pgid>.
Usage::
ceph pg force_create_pg <pgid>
Subcommand ``getmap`` gets binary pg map to -o/stdout.
Usage::
ceph pg getmap
Subcommand ``ls`` lists pg with specific pool, osd, state
Usage::
ceph pg ls {<int>} {active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}
Subcommand ``ls-by-osd`` lists pg on osd [osd]
Usage::
ceph pg ls-by-osd <osdname (id|osd.id)> {<int>}
{active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}
Subcommand ``ls-by-pool`` lists pg with pool = [poolname | poolid]
Usage::
ceph pg ls-by-pool <poolstr> {<int>} {active|
clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}
Subcommand ``ls-by-primary`` lists pg with primary = [osd]
Usage::
ceph pg ls-by-primary <osdname (id|osd.id)> {<int>}
{active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale| remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized [active|clean|down|replay|splitting|
scrubbing|scrubq|degraded|inconsistent|peering|repair|
recovery|backfill_wait|incomplete|stale|remapped|
deep_scrub|backfill|backfill_toofull|recovery_wait|
undersized...]}
Subcommand ``map`` shows mapping of pg to osds.
Usage::
ceph pg map <pgid>
Subcommand ``repair`` starts repair on <pgid>.
Usage::
ceph pg repair <pgid>
Subcommand ``scrub`` starts scrub on <pgid>.
Usage::
ceph pg scrub <pgid>
Subcommand ``send_pg_creates`` triggers pg creates to be issued.
Usage::
ceph pg send_pg_creates
Subcommand ``set_full_ratio`` sets ratio at which pgs are considered full.
Usage::
ceph pg set_full_ratio <float[0.0-1.0]>
Subcommand ``set_nearfull_ratio`` sets ratio at which pgs are considered nearly
full.
Usage::
ceph pg set_nearfull_ratio <float[0.0-1.0]>
Subcommand ``stat`` shows placement group status.
Usage::
ceph pg stat
quorum
------
Enter or exit quorum.
Usage::
ceph quorum enter|exit
quorum_status
-------------
Reports status of monitor quorum.
Usage::
ceph quorum_status
report
------
Reports full status of cluster, optional title tag strings.
Usage::
ceph report {<tags> [<tags>...]}
scrub
-----
Scrubs the monitor stores.
Usage::
ceph scrub
status
------
Shows cluster status.
Usage::
ceph status
sync force
----------
Forces sync of and clear monitor store.
Usage::
ceph sync force {--yes-i-really-mean-it} {--i-know-what-i-am-doing}
tell
----
Sends a command to a specific daemon.
Usage::
ceph tell <name (type.id)> <args> [<args>...]
version
-------
Show mon daemon version
Usage::
ceph version
Options
=======
.. option:: -i infile
will specify an input file to be passed along as a payload with the
command to the monitor cluster. This is only used for specific
monitor commands.
.. option:: -o outfile
will write any payload returned by the monitor cluster with its
reply to outfile. Only specific monitor commands (e.g. osd getmap)
return a payload.
.. 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:: --id CLIENT_ID, --user CLIENT_ID
Client id for authentication.
.. option:: --name CLIENT_NAME, -n CLIENT_NAME
Client name for authentication.
.. option:: --cluster CLUSTER
Name of the Ceph cluster.
.. option:: --admin-daemon ADMIN_SOCKET
Submit admin-socket commands.
.. option:: --admin-socket ADMIN_SOCKET_NOPE
You probably mean --admin-daemon
.. option:: -s, --status
Show cluster status.
.. option:: -w, --watch
Watch live cluster changes.
.. option:: --watch-debug
Watch debug events.
.. option:: --watch-info
Watch info events.
.. option:: --watch-sec
Watch security events.
.. option:: --watch-warn
Watch warning events.
.. option:: --watch-error
Watch error events.
.. option:: --version, -v
Display version.
.. option:: --verbose
Make verbose.
.. option:: --concise
Make less verbose.
.. option:: -f {json,json-pretty,xml,xml-pretty,plain}, --format
Format of output.
.. option:: --connect-timeout CLUSTER_TIMEOUT
Set a timeout for connecting to the cluster.
Availability
============
:program:`ceph` is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to
the Ceph documentation at http://ceph.com/docs for more information.
See also
========
:doc:`ceph-mon <ceph-mon>`\(8),
:doc:`ceph-osd <ceph-osd>`\(8),
:doc:`ceph-mds <ceph-mds>`\(8)