@Override
    public TableDescriptor createHtd(final String tableName) {
      return TableDescriptorBuilder
        .newBuilder(TableName.valueOf(tableName)).setColumnFamily(ColumnFamilyDescriptorBuilder
          .newBuilder(Bytes.toBytes(TEST_FAMILY)).setMobEnabled(true).setMobThreshold(0L).build())
        .build();
    }
Return the number of rows in the given table.
hbase-server/src/test/java/org/apache/hadoop/hbase/snapshot/MobSnapshotTestingUtils.java