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https://issues.apache.org/jira/browse/SPARK-6497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Darabos updated SPARK-6497:
----------------------------------
    Priority: Major  (was: Minor)

> Class is not registered: scala.reflect.ManifestFactory$$anon$9
> --------------------------------------------------------------
>
>                 Key: SPARK-6497
>                 URL: https://issues.apache.org/jira/browse/SPARK-6497
>             Project: Spark
>          Issue Type: Bug
>          Components: Spark Core
>    Affects Versions: 1.3.0, 1.4.0, 1.5.0
>            Reporter: Daniel Darabos
>
> This is a slight regression from Spark 1.2.1 to 1.3.0.
> {noformat}
> spark-1.2.1-bin-hadoop2.4/bin/spark-shell --conf 
> spark.serializer=org.apache.spark.serializer.KryoSerializer --conf 
> spark.kryo.registrationRequired=true --conf 
> 'spark.kryo.classesToRegister=scala.collection.mutable.WrappedArray$ofRef,[Lscala.Tuple2;'
> scala> sc.parallelize(Seq(1 -> 1)).groupByKey.collect
> res0: Array[(Int, Iterable[Int])] = Array((1,CompactBuffer(1)))
> {noformat}
> {noformat}
> spark-1.3.0-bin-hadoop2.4/bin/spark-shell --conf 
> spark.serializer=org.apache.spark.serializer.KryoSerializer --conf 
> spark.kryo.registrationRequired=true --conf 
> 'spark.kryo.classesToRegister=scala.collection.mutable.WrappedArray$ofRef,[Lscala.Tuple2;'
> scala> sc.parallelize(Seq(1 -> 1)).groupByKey.collect
> Lost task 1.0 in stage 3.0 (TID 25, localhost): 
> com.esotericsoftware.kryo.KryoException: java.lang.IllegalArgumentException: 
> Class is not registered: scala.reflect.ManifestFactory$$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.



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