/*
* convert from a result set record to an object
*/
private static HadoopRpc createHadoopRpc(ResultSet rs) {
HadoopRpc obj = null;
try {
obj = new HadoopRpc(
rs.getTimestamp("timestamp"),
rs.getString("host"),
rs.getDouble("rpc_processing_time_avg_time"),
rs.getDouble("rpc_processing_time_num_ops"),
rs.getDouble("rpc_queue_time_avg_time"),