radosgw-admin – rados REST gateway user administration utility


radosgw-admin command [ options ]


radosgw-admin is a RADOS gateway user administration utility. It allows creating and modifying users.


radosgw-admin utility uses many commands for administration purpose which are as follows:

user create

Create a new user.

user modify

Modify a user.

user info

Display information of a user, and any potentially available subusers and keys.

user rm

Remove a user.

user suspend

Suspend a user.

user enable

Re-enable user after suspension.

user check

Check user info.

user stats

Show user stats as accounted by quota subsystem.

caps add

Add user capabilities.

caps rm

Remove user capabilities.

subuser create

Create a new subuser (primarily useful for clients using the Swift API).

subuser modify

Modify a subuser.

subuser rm

Remove a subuser.

key create

Create access key.

key rm

Remove access key.

bucket list

List buckets, or, if bucket specified with –bucket=<bucket>, list its objects. If bucket specified adding –allow-unordered removes ordering requirement, possibly generating results more quickly in buckets with large number of objects.

bucket link

Link bucket to specified user.

bucket unlink

Unlink bucket from specified user.

bucket stats

Returns bucket statistics.

bucket rm

Remove a bucket.

bucket check

Check bucket index.

object rm

Remove an object.

object unlink

Unlink object from bucket index.

quota set

Set quota params.

quota enable

Enable quota.

quota disable

Disable quota.

region get

Show region info.

region list

List all regions set on this cluster.

region set

Set region info (requires infile).

region default

Set default region.

region-map get

Show region-map.

region-map set

Set region-map (requires infile).

zone get

Show zone cluster params.

zone set

Set zone cluster params (requires infile).

zone list

List all zones set on this cluster.

sync error list

list sync error.

sync error trim

trim sync error.

pool add

Add an existing pool for data placement.

pool rm

Remove an existing pool from data placement set.

pools list

List placement active set.


Display bucket/object policy.

log list

List log objects.

log show

Dump a log from specific object or (bucket + date + bucket-id). (NOTE: required to specify formatting of date to “YYYY-MM-DD-hh”)

log rm

Remove log object.

usage show

Show the usage information (with optional user and date range).

usage trim

Trim usage information (with optional user and date range).

gc list

Dump expired garbage collection objects (specify –include-all to list all entries, including unexpired).

gc process

Manually process garbage.

metadata get

Get metadata info.

metadata put

Put metadata info.

metadata rm

Remove metadata info.

metadata list

List metadata info.

mdlog list

List metadata log.

mdlog trim

Trim metadata log.

bilog list

List bucket index log.

bilog trim

Trim bucket index log (use start-marker, end-marker).

datalog list

List data log.

datalog trim

Trim data log.

opstate list

List stateful operations entries (use client_id, op_id, object).

opstate set

Set state on an entry (use client_id, op_id, object, state).

opstate renew

Renew state on an entry (use client_id, op_id, object).

opstate rm

Remove entry (use client_id, op_id, object).

replicalog get

Get replica metadata log entry.

replicalog delete

Delete replica metadata log entry.

orphans find

Init and run search for leaked rados objects

orphans finish

Clean up search for leaked rados objects

reshard add

Schedule a resharding of a bucket

reshard list

List all bucket resharding or scheduled to be resharded

reshard process

Process of scheduled reshard jobs

reshard status

Resharding status of a bucket

reshard cancel

Cancel resharding a bucket


-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.

-m monaddress[:port]

Connect to specified monitor (instead of looking through ceph.conf).


The radosgw user ID.


Name of the subuser.


The e-mail address of the user.


Configure the display name of the user.


S3 access key.


Generate random access key (for S3).


The secret associated with a given key.


Generate random secret key.


key type, options are: swift, s3.


Temporary url key.


Set the system flag on the user.


Specify the bucket name.


Specify the object name.


The date needed for some commands.


The start date needed for some commands.


The end date needed for some commands.


Optional for mdlog list, data sync status. Required for mdlog trim, replica mdlog get/delete, replica datalog get/delete.


Optional for listing operations to specify the max entires


The librados auid.


Remove user data before user removal.


When specified, subuser removal will also purge all the subuser keys.


Remove all objects before bucket removal.


Key to retrieve metadata from with metadata get.


Region in which radosgw is running.


Zone in which radosgw is running.


Besides checking bucket index, will also fix it.


bucket check: Rebuilds bucket index according to actual objects state.


Specify output format for certain operations: xml, json.


Option to ‘user stats’, update user stats with current stats reported by user’s buckets indexes.


Enable/disable dump of log entries on log show.


Enable/disable dump of log summation on log show.


Log show only dumps entries that don’t have zero value in one of the numeric field.


Specify a file to read in when setting data.

--state=<state string>

Specify a state for the opstate set command.


Replica log type (metadata, data, bucket), required for replica log operations.


Comma separated list of categories, used in usage show.


List of caps (e.g., “usage=read, write; user=read”.


Placement target compression algorithm (lz4|snappy|zlib|zstd)


Required for certain operations.

Quota Options


Specify max objects (negative value to disable).


Specify max size (in bytes, negative value to disable).


Scope of quota (bucket, user).

Orphans Search Options


Data pool to scan for leaked rados objects


Number of shards to use for keeping the temporary scan info


Number of seconds to wait before declaring an object to be an orphan. Default is 86400 (24 hours).


Set the job id (for orphans find)


Maximum concurrent ios for orphans find. Default is 32.


Generate a new user:

$ radosgw-admin user create --display-name="johnny rotten" --uid=johnny
{ "user_id": "johnny",
  "rados_uid": 0,
  "display_name": "johnny rotten",
  "email": "",
  "suspended": 0,
  "subusers": [],
  "keys": [
        { "user": "johnny",
          "access_key": "TCICW53D9BQ2VGC46I44",
          "secret_key": "tfm9aHMI8X76L3UdgE+ZQaJag1vJQmE6HDb5Lbrz"}],
  "swift_keys": []}

Remove a user:

$ radosgw-admin user rm --uid=johnny

Remove a user and all associated buckets with their contents:

$ radosgw-admin user rm --uid=johnny --purge-data

Remove a bucket:

$ radosgw-admin bucket rm --bucket=foo

Link bucket to specified user:

$ radosgw-admin bucket link --bucket=foo --bucket_id=<bucket id> --uid=johnny

Unlink bucket from specified user:

$ radosgw-admin bucket unlink --bucket=foo --uid=johnny

Show the logs of a bucket from April 1st, 2012:

$ radosgw-admin log show --bucket=foo --date=2012-04-01-01 --bucket-id=default.14193.1

Show usage information for user from March 1st to (but not including) April 1st, 2012:

$ radosgw-admin usage show --uid=johnny \
                --start-date=2012-03-01 --end-date=2012-04-01

Show only summary of usage information for all users:

$ radosgw-admin usage show --show-log-entries=false

Trim usage information for user until March 1st, 2012:

$ radosgw-admin usage trim --uid=johnny --end-date=2012-04-01


radosgw-admin 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

ceph(8) radosgw(8)