boolean checkQuotaTableExists() throws IOException {
    try (Admin admin = getConnection().getAdmin()) {
      return admin.tableExists(QuotaUtil.QUOTA_TABLE_NAME);
    }
  }
Checks if hbase:quota exists in hbase:meta
@return true if hbase:quota table is in meta, else returns false.
@throws IOException throws IOException
hbase-server/src/main/java/org/apache/hadoop/hbase/quotas/SpaceQuotaRefresherChore.java