@Override
      public boolean evaluate() throws Exception {
        Map<TableName, SpaceQuotaSnapshot> snapshots =
          rs.getRegionServerSpaceQuotaManager().copyQuotaSnapshots();
        SpaceQuotaSnapshot snapshot = snapshots.get(tn);
        if (snapshot == null) {
          LOG.info("Found no snapshot for " + tn);
          return false;
        }
        LOG.info("Found snapshot " + snapshot);
        return snapshot.getQuotaStatus().isInViolation();
      }
Test class to verify that the HBase superuser can override quotas.
hbase-server/src/test/java/org/apache/hadoop/hbase/quotas/TestSuperUserQuotaPermissions.java