Which version of Hive jar are you using? Hive 0.13.1 or Hive 0.12.0?
-----Original Message-----
From: ogoh [mailto:[email protected]]
Sent: Friday, June 5, 2015 10:10 AM
To: [email protected]
Subject: SparkSQL : using Hive UDF returning Map throws "rror:
scala.MatchError: interface java.util.Map (of class java.lang.Class)
(state=,code=0)"
Hello,
I tested some custom udf on SparkSql's ThriftServer & Beeline (Spark 1.3.1).
Some udfs work fine (access array parameter and returning int or string type).
But my udf returning map type throws an error:
"Error: scala.MatchError: interface java.util.Map (of class java.lang.Class)
(state=,code=0)"
I converted the code into Hive's GenericUDF since I worried that using complex
type parameter (array of map) and returning complex type (map) can be supported
in Hive's GenericUDF instead of simple UDF.
But SparkSQL doesn't seem supporting GenericUDF.(error message : Error:
java.lang.IllegalAccessException: Class
org.apache.spark.sql.hive.HiveFunctionWrapper can not access ..).
Below is my example udf code returning MAP type.
I appreciate any advice.
Thanks
------
public final class ArrayToMap extends UDF {
public Map<String,String> evaluate(ArrayList<String> arrayOfString) {
// add code to handle all index problem
Map<String, String> map = new HashMap<String, String>();
int count = 0;
for (String element : arrayOfString) {
map.put(count + "", element);
count++;
}
return map;
}
}
--
View this message in context:
http://apache-spark-user-list.1001560.n3.nabble.com/SparkSQL-using-Hive-UDF-returning-Map-throws-rror-scala-MatchError-interface-java-util-Map-of-class--tp23164.html
Sent from the Apache Spark User List mailing list archive at Nabble.com.
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected] For additional
commands, e-mail: [email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
