Venkata Sai Akhil Gudesa created SPARK-44388:
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Summary: Using an updated instance of ScalarUserDefinedFunction
causes protobuf cast failures on server
Key: SPARK-44388
URL: https://issues.apache.org/jira/browse/SPARK-44388
Project: Spark
Issue Type: Bug
Components: Connect
Affects Versions: 3.5.0
Reporter: Venkata Sai Akhil Gudesa
When running the following code-
{code:java}
class A(x: Int) { def get = x * 7 }
val myUdf = udf((x: Int) => new A(x).get)
val modifiedUdf = myUdf.withName("myUdf")
spark.range(5).select(modifiedUdf(col("id"))).as[Int].collect(){code}
which modifies the original myUdf instance through the `withName` method causes
the following error to occur during execution:
{noformat}
java.lang.ClassCastException: org.apache.spark.connect.proto.ScalarScalaUDF
cannot be cast to com.google.protobuf.MessageLite
at
com.google.protobuf.GeneratedMessageLite$SerializedForm.readResolve(GeneratedMessageLite.java:1462)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1274)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2196)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2285)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:2093)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1655)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2405)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2329)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2187)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1667)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:503)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:461)
at org.apache.spark.util.Utils$.deserialize(Utils.scala:148){noformat}
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