@Override
    public void run() {
      try (Table table = UTIL.getConnection().getTable(TableName.valueOf(tablename))) {
        for (int i = start; i <= end; i++) {
          Get get = new Get(Bytes.toBytes(String.format("tableName,rowKey%d,region%d", i, i)));
          table.get(get);
        }
      } catch (IOException e) {
        LOG.warn("Caught IOException while GetThread operation", e);
      }
    }
Read the attributes from Hadoop->HBase->RegionServer->MetaTableMetrics in JMX
@throws IOException when fails to retrieve jmx metrics.
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestMetaTableMetrics.java