How to debug Hive UDfs?!
On Jan 24, 2017 5:29 PM, "Sirisha Cheruvu" <siri8...@gmail.com> wrote:
> Hi Team,
>
> I am trying to keep below code in get method and calling that get mthod in
> another hive UDF
> and running the hive UDF using Hive Context.sql procedure..
>
>
> switch (f) {
> case "double" : return ((DoubleWritable)obj).get();
> case "bigint" : return ((LongWritable)obj).get();
> case "string" : return ((Text)obj).toString();
> default : return obj;
> }
> }
>
> Suprisingly only LongWritable and Text convrsions are throwing error but
> DoubleWritable is working
> So I tried changing below code to
>
> switch (f) {
> case "double" : return ((DoubleWritable)obj).get();
> case "bigint" : return ((DoubleWritable)obj).get();
> case "string" : return ((Text)obj).toString();
> default : return obj;
> }
> }
>
> Still its throws error saying Java.Lang.Long cant be convrted
> to org.apache.hadoop.hive.serde2.io.DoubleWritable
>
>
>
> its working fine on hive but throwing error on spark-sql
>
> I am importing the below packages.
> import java.util.*;
> import org.apache.hadoop.hive.serde2.objectinspector.*;
> import org.apache.hadoop.io.LongWritable;
> import org.apache.hadoop.io.Text;
> import org.apache.hadoop.hive.serde2.io.DoubleWritable;
>
> .Please let me know why it is making issue in spark when perfectly running
> fine on hive
>
