Ryan Williams created SPARK-21569:
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Summary: Internal Spark class needs to be kryo-registered
Key: SPARK-21569
URL: https://issues.apache.org/jira/browse/SPARK-21569
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.2.0
Reporter: Ryan Williams
[Full repro here|https://github.com/ryan-williams/spark-bugs/tree/hf]
As of 2.2.0, {{saveAsNewAPIHadoopFile}} jobs fail (when
{{spark.kryo.registrationRequired=true}}) with:
{code}
java.lang.IllegalArgumentException: Class is not registered:
org.apache.spark.internal.io.FileCommitProtocol$TaskCommitMessage
Note: To register this class use:
kryo.register(org.apache.spark.internal.io.FileCommitProtocol$TaskCommitMessage.class);
at com.esotericsoftware.kryo.Kryo.getRegistration(Kryo.java:458)
at
com.esotericsoftware.kryo.util.DefaultClassResolver.writeClass(DefaultClassResolver.java:79)
at com.esotericsoftware.kryo.Kryo.writeClass(Kryo.java:488)
at com.esotericsoftware.kryo.Kryo.writeClassAndObject(Kryo.java:593)
at
org.apache.spark.serializer.KryoSerializerInstance.serialize(KryoSerializer.scala:315)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:383)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
{code}
This internal Spark class should be kryo-registered by Spark by default.
This was not a problem in 2.1.1.
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