Robert Metzger created FLINK-2019:
-------------------------------------
Summary: Grouping by Joda DateTime field fails with Kryo exception
Key: FLINK-2019
URL: https://issues.apache.org/jira/browse/FLINK-2019
Project: Flink
Issue Type: Improvement
Components: Type Serialization System
Affects Versions: 0.9
Reporter: Robert Metzger
Assignee: Robert Metzger
Running
{code}
DataSet<Tuple3<String, Integer, DateTime>> counts =
text.flatMap(new LineSplitter()).groupBy(0, 2).sum(1);
{code}
fails with
{code}
com.esotericsoftware.kryo.KryoException: Class cannot be created (missing
no-arg constructor): org.joda.time.chrono.ISOChronology
Serialization trace:
iChronology (org.joda.time.DateTime)
at
com.esotericsoftware.kryo.Kryo$DefaultInstantiatorStrategy.newInstantiatorOf(Kryo.java:1228)
at com.esotericsoftware.kryo.Kryo.newInstantiator(Kryo.java:1049)
at com.esotericsoftware.kryo.Kryo.newInstance(Kryo.java:1058)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.createCopy(FieldSerializer.java:620)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.copy(FieldSerializer.java:624)
at com.esotericsoftware.kryo.Kryo.copy(Kryo.java:862)
at
com.esotericsoftware.kryo.serializers.ObjectField.copy(ObjectField.java:140)
at
com.esotericsoftware.kryo.serializers.FieldSerializer.copy(FieldSerializer.java:634)
at com.esotericsoftware.kryo.Kryo.copy(Kryo.java:862)
at
org.apache.flink.api.java.typeutils.runtime.GenericTypeComparator.setReference(GenericTypeComparator.java:77)
at
org.apache.flink.api.java.typeutils.runtime.GenericTypeComparator.setReference(GenericTypeComparator.java:36)
at
org.apache.flink.api.java.typeutils.runtime.TupleComparator.setReference(TupleComparator.java:72)
at
org.apache.flink.api.java.typeutils.runtime.TupleComparator.setReference(TupleComparator.java:30)
at
org.apache.flink.runtime.util.NonReusingKeyGroupedIterator.nextKey(NonReusingKeyGroupedIterator.java:115)
at
org.apache.flink.runtime.operators.chaining.SynchronousChainedCombineDriver.sortAndCombine(SynchronousChainedCombineDriver.java:233)
at
org.apache.flink.runtime.operators.chaining.SynchronousChainedCombineDriver.close(SynchronousChainedCombineDriver.java:194)
at
org.apache.flink.runtime.operators.chaining.ChainedFlatMapDriver.close(ChainedFlatMapDriver.java:87)
at
org.apache.flink.runtime.operators.DataSourceTask.invoke(DataSourceTask.java:189)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:562)
at java.lang.Thread.run(Thread.java:745)
{code}
The issue has been reported by [~f.pompermaier]:
http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/KryoException-with-joda-Datetime-td1248.html
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