Commands for managing buckets

The Ozone shell commands enable you to create, delete, view, and list buckets. Before running these commands, you must have configured the Ozone Service ID for your cluster from the Configuration tab of the Ozone service on Cloudera Manager.

Creating a bucket


Command Syntax	`ozone sh bucket create URI`
Purpose	Creates a bucket in the specified volume.
Arguments	URI: The name of the bucket to create in the <prefix>://<Service ID>/<volumename>/<bucketname> format.
Example	`ozone sh bucket create o3://ozone1/vol1/buck1` This command creates a bucket buck1 in the volume vol1. Here, ozone1 is the Ozone Service ID.

Deleting a bucket


Command Syntax	`ozone sh bucket delete URI`
Purpose	Deletes the specified bucket which must be empty. To delete the bucket that is not empty, you must use -r in the delete command.
Arguments	URI: The name of the bucket to delete in the <prefix>://<Service ID>/<volumename>/<bucketname> format.
Example	`ozone sh bucket create o3://ozone1/vol1/buck2` This command deletes the empty bucket buck2. Here, ozone1 is the Ozone Service ID.

Viewing bucket information


Command Syntax	`ozone sh bucket info URI`
Purpose	Provides information about the specified bucket.
Arguments	URI: The name of the bucket whose details you want to view, in the <prefix>://<Service ID>/<volumename>/<bucketname> format.
Example	`ozone sh bucket info o3://ozone1/vol1/buck3` This command provides information about bucket buck3. Here, ozone1 is the Ozone Service ID.

Listing buckets


Command Syntax	`ozone sh bucket list URI --length=<number_of_buckets> --prefix=<bucket_prefix> --start=<starting_bucket>`
Purpose	Lists all the buckets in a specified volume.
Arguments	-l, length: Specifies the maximum number of results to return. The default is 100. -p, prefix: Lists bucket names that match the specified prefix. -s, start: Returns results starting with the bucket after the specified value. URI: The name of the volume whose buckets you want to list, in the <prefix>://<Service ID>/<volumename>/ format.
Example	`ozone sh bucket list o3://ozone1/vol2 --length=100 --prefix=buck --start=buck` This command lists 100 buckets belonging to volume vol2 and names starting with the prefix buck. Here, ozone1 is the Ozone Service ID.

Setting bucket Space level quota


Command Syntax	`ozone sh bucket setquota --space-quota <volumecapacity> /volume/bucket`
Purpose	Manage the quota of the specific bucket under a bucket.
Arguments	--space-quota <volumecapacity>: Specifies the maximum size the volume can occupy in the cluster. note You cannot set the quota of volumes and buckets in decimals. For example, 1.5 TB. Ensure that the minimum storage quota is *default block size replication factor. If you set the value lesser than the default block size * replication factor,** while writing the data (key put) operation, an operation error is displayed.
Example	`ozone sh bucket setquota --space-quota 10GB /volume1/bucket1` This command sets `volume1/bucket1` space quota to 10GB.

Clearing bucket Space level quota


Command Syntax	`ozone sh bucket clrquota --space-quota /volume/bucket`
Purpose	Clear the space quota of the bucket.
Arguments	--space-quota: Specifies the space quota of a bucket.
Example	`ozone sh bucket clrquota --space-quota /volume1/bucket1` This command clears the space quota of bucket1.

Check space level quota for bucket


Command Syntax	`ozone sh bucket info /volume/bucket`
Purpose	Get the quota value and usedBytes info of the bucket.
Arguments	-
Example	`ozone sh bucket info /volume1/bucket1` This command gets the quota value and usedBytes info of bucket1.

Setting Namespace quota

Namespace quota is a number that represents how many unique names can be used. This number cannot be greater than LONG.MAX_VALUE in Java.


Command Syntax	`ozone sh bucket create --namespace-quota <volumecapacity> /volume/bucket`
Purpose	Manage the quota of the namespace bucket.
Arguments	--namespace-quota <volumecapacity>: Specifies the namespace quota of a bucket.
Example	`ozone sh bucket create --namespace-quota 100 /volume1/bucket1` This command sets the namespace quota of bucket1 to 100.

Clearing bucket spacelvel quota


Command Syntax	`ozone sh bucket clrquota --namespace-quota /volume/bucket`
Purpose	Clear the namespace quota of the bucket.
Arguments	--namespace-quota: Specifies the namespace quota of a bucket.
Example	`ozone sh bucket clrquota --namespace-quota /volume1/bucket1` This command clears the namespace quota of bucket1.

Check Namespace level quota for bucket


Command Syntax	`ozone sh bucket info /bucket`
Purpose	Get the quota value and usedNamespace info of the bucket.
Arguments	-
Example	`ozone sh bucket info /bucket1` This command gets the quota value and usedNamespace of bucket1.