hbase.master.quota.observer.ignore property seems to be not taking effect

From doc setting hbase.master.quota.observer.ignore property to true will retain the space quota even after table is deleted. But doesn't seem to be the case i.e. whether the property is not defined which sets the value to false or set the property to true in site.xml, the quota gets removed when the corresponding table is dropped. Will verify whether it works in 1.x. Did a grep on the master source, did get a hit on the property in code.

Steps to reproduce

• Add this property and restart hbase

      <property>
          <name>hbase.master.quota.observer.ignore</name>
          <value>true</value>
      </property>

• Through hbase shell

• hbase(main):003:0> set_quota TYPE => SPACE, TABLE => 't1', LIMIT => '1G', POLICY => NO_INSERTS
  Took 0.0317 seconds

• hbase(main):005:0> create 't1','cf1'
  Created table t1
  Took 0.7904 seconds

• hbase(main):006:0> list_quotas
  OWNER QUOTAS
  TABLE => t1 TYPE => SPACE, TABLE => t1, LIMIT => 1073741824, VIOLATION_POLICY => NO_INSERTS
  1 row(s)

• hbase(main):007:0> disable 't1'
  Took 0.4909 seconds
  hbase(main):008:0> list_quotas
  OWNER QUOTAS
  TABLE => t1 TYPE => SPACE, TABLE => t1, LIMIT => 1073741824, VIOLATION_POLICY => NO_INSERTS
  1 row(s)
  Took 0.0420 seconds

• hbase(main):009:0> drop 't1'
  Took 0.1407 seconds

• hbase(main):010:0> list_quotas
  OWNER QUOTAS
  0 row(s)
  Took 0.0307 seconds