Using Apache HBase to store and access data
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Number-of-Regions Quotas

The number-of-regions quota is similar to the number-of-tables quota. The number-of-regions quota is set as part of the namespace metadata and does not involve the set_quota command.

Examples of Commands Relevant to Setting and Administering Number-of-Regions Quotas

Create namespace ns1 with a maximum of 5 tables

hbase> create_namespace 'ns1', {'hbase.namespace.quota.maxregions'=>'5'}

Alter an existing namespace ns1 to set a maximum of 8 regions

hbase> alter_namespace 'ns1', {METHOD => 'set', 'hbase.namespace.quota.maxregions'=>'8'}

Show quota information for namespace ns1

hbase> describe_namespace 'ns1'

Alter existing namespace ns1 to remove a quota

hbase> alter_namespace 'ns1', {METHOD => 'unset', NAME=>'hbase.namespace.quota.maxregions'}