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Peigen commented on SPARK-23131: -------------------------------- I realize this happens when I try to serialize the model using ObjectOutputStream like {quote} def modelToString(model: Model): (String, String) = \{ val os: ByteArrayOutputStream = new ByteArrayOutputStream() val zos = new GZIPOutputStream(os) val oo: ObjectOutputStream = new ObjectOutputStream(zos) oo.writeObject(model) oo.close() zos.close() os.close() (model.id, DatatypeConverter.printBase64Binary(os.toByteArray)) \} {quote} not a standard way to save a model but fitting our production requirement. So this might just be a wish to upgrade kryo, I will adapt the ticket :) > Stackoverflow using ML and Kryo serializer > ------------------------------------------ > > Key: SPARK-23131 > URL: https://issues.apache.org/jira/browse/SPARK-23131 > Project: Spark > Issue Type: Bug > Components: ML > Affects Versions: 2.2.0 > Reporter: Peigen > Priority: Minor > > When trying to use GeneralizedLinearRegression model and set SparkConf to use > KryoSerializer(JavaSerializer is fine) > It causes StackOverflowException > {quote} > Exception in thread "dispatcher-event-loop-34" java.lang.StackOverflowError > at java.util.HashMap.hash(HashMap.java:338) > at java.util.HashMap.get(HashMap.java:556) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:61) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > at com.esotericsoftware.kryo.Generics.getConcreteClass(Generics.java:62) > {quote} > This is very likely to be https://github.com/EsotericSoftware/kryo/issues/341 > Upgrade Kryo to 4.0+ probably could fix this -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org