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Daniel Darabos commented on SPARK-6497: --------------------------------------- By the way, have you considered running the Spark tests with {{spark.serializer=org.apache.spark.serializer.KryoSerializer}} and {{spark.kryo.registrationRequired=true}}? > Class is not registered: scala.reflect.ManifestFactory$$anon$9 > -------------------------------------------------------------- > > Key: SPARK-6497 > URL: https://issues.apache.org/jira/browse/SPARK-6497 > Project: Spark > Issue Type: Bug > Components: Spark Core > Affects Versions: 1.3.0 > Reporter: Daniel Darabos > Priority: Minor > > This is a slight regression from Spark 1.2.1 to 1.3.0. > {noformat} > spark-1.2.1-bin-hadoop2.4/bin/spark-shell --conf > spark.serializer=org.apache.spark.serializer.KryoSerializer --conf > spark.kryo.registrationRequired=true --conf > 'spark.kryo.classesToRegister=scala.collection.mutable.WrappedArray$ofRef,[Lscala.Tuple2;' > scala> sc.parallelize(Seq(1 -> 1)).groupByKey.collect > res0: Array[(Int, Iterable[Int])] = Array((1,CompactBuffer(1))) > {noformat} > {noformat} > spark-1.3.0-bin-hadoop2.4/bin/spark-shell --conf > spark.serializer=org.apache.spark.serializer.KryoSerializer --conf > spark.kryo.registrationRequired=true --conf > 'spark.kryo.classesToRegister=scala.collection.mutable.WrappedArray$ofRef,[Lscala.Tuple2;' > scala> sc.parallelize(Seq(1 -> 1)).groupByKey.collect > Lost task 1.0 in stage 3.0 (TID 25, localhost): > com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException: > Class is not registered: scala.reflect.ManifestFactory$$anon$9 > Note: To register this class use: > kryo.register(scala.reflect.ManifestFactory$$anon$9.class); > Serialization trace: > evidence$1 (org.apache.spark.util.collection.CompactBuffer) > at > com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:585) > at > com.esotericsoftware.kryo.serializers.FieldSerializer.write(FieldSerializer.java:213) > at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568) > at com.twitter.chill.Tuple2Serializer.write(TupleSerializers.scala:37) > at com.twitter.chill.Tuple2Serializer.write(TupleSerializers.scala:33) > at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568) > at > com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:318) > at > com.esotericsoftware.kryo.serializers.DefaultArraySerializers$ObjectArraySerializer.write(DefaultArraySerializers.java:293) > at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:568) > at > org.apache.spark.serializer.KryoSerializerInstance.serialize(KryoSerializer.scala:161) > at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213) > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) > at java.lang.Thread.run(Thread.java:745) > Caused by: java.lang.IllegalArgumentException: Class is not registered: > scala.reflect.ManifestFactory$$anon$9 > Note: To register this class use: > kryo.register(scala.reflect.ManifestFactory$$anon$9.class); > at com.esotericsoftware.kryo.Kryo.getRegistration(Kryo.java:442) > at > com.esotericsoftware.kryo.util.DefaultClassResolver.writeClass(DefaultClassResolver.java:79) > at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:472) > at > com.esotericsoftware.kryo.serializers.FieldSerializer$ObjectField.write(FieldSerializer.java:561) > ... 13 more > {noformat} > In our production code the exception is actually about > {{scala.reflect.ManifestFactory$$anon$8}} instead of > {{scala.reflect.ManifestFactory$$anon$9}} but it's probably the same thing. > Any idea what caused from 1.2.1 to 1.3.0 that could be causing this? > We also get exceptions in 1.3.0 for {{scala.reflect.ClassTag$$anon$1}} and > {{java.lang.Class}}, but I haven't reduced them to a spark-shell reproduction > yet. We can of course just register these classes ourselves. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org