Mixing
how to make reflectMethod as UDF
there is a problme for me:( Coule people give me some help:)
this is my require: dynamic load jars + register UDF.
the code:
//Test.ImTest
object ImTest extends Serializable {
def len(bookTitle: String):String =
{"ImTest"}
}
// main
val ru = scala.reflect.runtime.universe
val classMirror = ru.runtimeMirror(getClass.getClassLoader)
val classTest = classMirror.staticModule("Test.ImTest")
val methods = classMirror.reflectModule(classTest)
val objMirror = classMirror.reflect(methods.instance)
val method = methods.symbol.typeSignature.member(ru.TermName("len")).asMethod
val result = objMirror.reflectMethod(method)("bbb")
def d(s: String) = {
objMirror.reflectMethod(method)(s)
}
spark.udf.register("len", d _)
spark.sql("select len('bb')").show()
errors:
18/11/21 09:58:52 INFO execution.SparkSqlParser: Parsing command: select len('bb')
18/11/21 09:58:54 INFO codegen.CodeGenerator: Code generated in 475.734954 ms
Exception in thread "main" org.apache.spark.SparkException: Task not serializable
at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
at org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2106)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:840)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:839)
Caused by: java.io.NotSerializableException:
scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9
Serialization stack:
- object not serializable (class: scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9,
value: method len)
- field (class: Test.Main$$anonfun$main$1, name: method$1, type: interface scala.reflect.api.Symbols$MethodSymbolApi)
- object (class Test.Main$$anonfun$main$1, )
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2, name:
func$2, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2,
)
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF, name: f, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF, UDF:len(bb))
- element of array (index: 0)
- array (class [Ljava.lang.Object;, size 2)
- field (class: org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8, name:
references$1, type: class [Ljava.lang.Object;)
- object (class org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8,
) at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
... 44 more
scala apache-spark
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
add a comment |
there is a problme for me:( Coule people give me some help:)
this is my require: dynamic load jars + register UDF.
the code:
//Test.ImTest
object ImTest extends Serializable {
def len(bookTitle: String):String =
{"ImTest"}
}
// main
val ru = scala.reflect.runtime.universe
val classMirror = ru.runtimeMirror(getClass.getClassLoader)
val classTest = classMirror.staticModule("Test.ImTest")
val methods = classMirror.reflectModule(classTest)
val objMirror = classMirror.reflect(methods.instance)
val method = methods.symbol.typeSignature.member(ru.TermName("len")).asMethod
val result = objMirror.reflectMethod(method)("bbb")
def d(s: String) = {
objMirror.reflectMethod(method)(s)
}
spark.udf.register("len", d _)
spark.sql("select len('bb')").show()
errors:
18/11/21 09:58:52 INFO execution.SparkSqlParser: Parsing command: select len('bb')
18/11/21 09:58:54 INFO codegen.CodeGenerator: Code generated in 475.734954 ms
Exception in thread "main" org.apache.spark.SparkException: Task not serializable
at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
at org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2106)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:840)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:839)
Caused by: java.io.NotSerializableException:
scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9
Serialization stack:
- object not serializable (class: scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9,
value: method len)
- field (class: Test.Main$$anonfun$main$1, name: method$1, type: interface scala.reflect.api.Symbols$MethodSymbolApi)
- object (class Test.Main$$anonfun$main$1, )
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2, name:
func$2, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2,
)
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF, name: f, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF, UDF:len(bb))
- element of array (index: 0)
- array (class [Ljava.lang.Object;, size 2)
- field (class: org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8, name:
references$1, type: class [Ljava.lang.Object;)
- object (class org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8,
) at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
... 44 more
scala apache-spark
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
add a comment |
there is a problme for me:( Coule people give me some help:)
this is my require: dynamic load jars + register UDF.
the code:
//Test.ImTest
object ImTest extends Serializable {
def len(bookTitle: String):String =
{"ImTest"}
}
// main
val ru = scala.reflect.runtime.universe
val classMirror = ru.runtimeMirror(getClass.getClassLoader)
val classTest = classMirror.staticModule("Test.ImTest")
val methods = classMirror.reflectModule(classTest)
val objMirror = classMirror.reflect(methods.instance)
val method = methods.symbol.typeSignature.member(ru.TermName("len")).asMethod
val result = objMirror.reflectMethod(method)("bbb")
def d(s: String) = {
objMirror.reflectMethod(method)(s)
}
spark.udf.register("len", d _)
spark.sql("select len('bb')").show()
errors:
18/11/21 09:58:52 INFO execution.SparkSqlParser: Parsing command: select len('bb')
18/11/21 09:58:54 INFO codegen.CodeGenerator: Code generated in 475.734954 ms
Exception in thread "main" org.apache.spark.SparkException: Task not serializable
at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
at org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2106)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:840)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:839)
Caused by: java.io.NotSerializableException:
scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9
Serialization stack:
- object not serializable (class: scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9,
value: method len)
- field (class: Test.Main$$anonfun$main$1, name: method$1, type: interface scala.reflect.api.Symbols$MethodSymbolApi)
- object (class Test.Main$$anonfun$main$1, )
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2, name:
func$2, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2,
)
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF, name: f, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF, UDF:len(bb))
- element of array (index: 0)
- array (class [Ljava.lang.Object;, size 2)
- field (class: org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8, name:
references$1, type: class [Ljava.lang.Object;)
- object (class org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8,
) at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
... 44 more
scala apache-spark
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
there is a problme for me:( Coule people give me some help:)
this is my require: dynamic load jars + register UDF.
the code:
//Test.ImTest
object ImTest extends Serializable {
def len(bookTitle: String):String =
{"ImTest"}
}
// main
val ru = scala.reflect.runtime.universe
val classMirror = ru.runtimeMirror(getClass.getClassLoader)
val classTest = classMirror.staticModule("Test.ImTest")
val methods = classMirror.reflectModule(classTest)
val objMirror = classMirror.reflect(methods.instance)
val method = methods.symbol.typeSignature.member(ru.TermName("len")).asMethod
val result = objMirror.reflectMethod(method)("bbb")
def d(s: String) = {
objMirror.reflectMethod(method)(s)
}
spark.udf.register("len", d _)
spark.sql("select len('bb')").show()
errors:
18/11/21 09:58:52 INFO execution.SparkSqlParser: Parsing command: select len('bb')
18/11/21 09:58:54 INFO codegen.CodeGenerator: Code generated in 475.734954 ms
Exception in thread "main" org.apache.spark.SparkException: Task not serializable
at org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
at org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2106)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:840)
at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsWithIndex$1.apply(RDD.scala:839)
Caused by: java.io.NotSerializableException:
scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9
Serialization stack:
- object not serializable (class: scala.reflect.runtime.SynchronizedSymbols$SynchronizedSymbol$$anon$9,
value: method len)
- field (class: Test.Main$$anonfun$main$1, name: method$1, type: interface scala.reflect.api.Symbols$MethodSymbolApi)
- object (class Test.Main$$anonfun$main$1, )
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2, name:
func$2, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF$$anonfun$2,
)
- field (class: org.apache.spark.sql.catalyst.expressions.ScalaUDF, name: f, type: interface scala.Function1)
- object (class org.apache.spark.sql.catalyst.expressions.ScalaUDF, UDF:len(bb))
- element of array (index: 0)
- array (class [Ljava.lang.Object;, size 2)
- field (class: org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8, name:
references$1, type: class [Ljava.lang.Object;)
- object (class org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8,
) at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
... 44 more
scala apache-spark
scala apache-spark
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
edited Nov 21 '18 at 6:50
Ram Ghadiyaram
16.5k64477
16.5k64477
asked Nov 21 '18 at 1:51
mengmeng
239
asked Nov 21 '18 at 1:51
mengmeng
239
asked Nov 21 '18 at 1:51
mengmeng
239
239
add a comment |
add a comment |
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