@Override
  public void checkBatchQuota(int numWrites, int numReads, boolean isAtomic)
    throws RpcThrottlingException {
    updateEstimateConsumeBatchQuota(numWrites, numReads);
    checkQuota(numWrites, numReads, isAtomic);
  }
NOTE: The order matters. It should be something like [user, table, namespace, global]
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/DefaultOperationQuota.java