Throttle quota examples

Examples of Adding Throttle Quotas Commands

Limit user u1 to 10 requests per second globally:

hbase> set_quota => TYPE => THROTTLE, USER => 'u1', LIMIT => '10req/sec'

Limit user u1 to up to 10MB of traffic per second globally:

hbase> set_quota => TYPE => THROTTLE, USER => 'u1', LIMIT => '10M/sec'

Limit user u1 to 10 requests/second globally for read operations. User u1 can still issue unlimited writes:

hbase> set_quota TYPE => THROTTLE, THROTTLE_TYPE => READ, USER => 'u1', LIMIT => '10req/sec'

Limit user u1 to 10 requests/second globally for read operations. User u1 can still issue unlimited reads:

hbase> set_quota TYPE => THROTTLE, THROTTLE_TYPE => WRITE, USER => 'u1', LIMIT => '10M/sec'

Limit user u1 to 5 KB/second for all operations on table t2. User u1 can still issue unlimited requests for other tables, regardless of type of operation:

hbase> set_quota TYPE => THROTTLE, USER => 'u1', TABLE => 't2', LIMIT => '5K/min'

Limit request to namespaces:

hbase> set_quota TYPE => THROTTLE, NAMESPACE => 'ns1', LIMIT => '10req/sec'

Limit request to tables:

hbase> set_quota TYPE => THROTTLE, TABLE => 't1', LIMIT => '10M/sec'

Limit requests based on type, regardless of users, namespaces, or tables:

hbase> set_quota TYPE => THROTTLE, THROTTLE_TYPE => WRITE, TABLE => 't1', LIMIT => '10M/sec'

Examples of Listing Throttle Quotas Commands

Show all quotas:

hbase> list_quotas

Show all quotas applied to user bob:

hbase> list_quotas USER => 'bob.*'

Show all quotas applied to user bob and filter by table or namespace:

hbase> list_quotas USER => 'bob.*', TABLE => 't1'
hbase> list_quotas USER => 'bob.*', NAMESPACE => 'ns.*'

Show all quotas and filter by table or namespace:

hbase> list_quotas TABLE => 'myTable'
hbase> list_quotas NAMESPACE => 'ns.*'

Examples of Updating and Deleting Throttle Quotas Commands

To update a quota, simply issue a new set_quota command. To remove a quota, you can set LIMIT to NONE. The actual quota entry will not be removed, but the policy will be disabled.

hbase> set_quota TYPE => THROTTLE, USER => 'u1', LIMIT => NONE

hbase> set_quota TYPE => THROTTLE, USER => 'u1', NAMESPACE => 'ns2', LIMIT => NONE

hbase> set_quota TYPE => THROTTLE, THROTTLE_TYPE => WRITE, USER => 'u1', LIMIT => NONE

hbase> set_quota USER => 'u1', GLOBAL_BYPASS => true