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https://issues.apache.org/jira/browse/SPARK-4560?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sean Owen updated SPARK-4560:
-----------------------------
Component/s: Spark Core
> Lambda deserialization error
> ----------------------------
>
> Key: SPARK-4560
> URL: https://issues.apache.org/jira/browse/SPARK-4560
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 1.1.0, 1.1.1
> Environment: Java 8.0.25
> Reporter: Alexis Seigneurin
> Attachments: IndexTweets.java, pom.xml
>
>
> I'm getting an error saying a lambda could not be deserialized. Here is the
> code:
> {code}
> TwitterUtils.createStream(sc, twitterAuth, filters)
> .map(t -> t.getText())
> .foreachRDD(tweets -> {
> tweets.foreach(x -> System.out.println(x));
> return null;
> });
> {code}
> Here is the exception:
> {noformat}
> java.io.IOException: unexpected exception type
> at
> java.io.ObjectStreamClass.throwMiscException(ObjectStreamClass.java:1538)
> at
> java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1110)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1810)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1993)
> at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1918)
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1801)
> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
> at
> org.apache.spark.serializer.JavaDeserializationStream.readObject(JavaSerializer.scala:62)
> at
> org.apache.spark.serializer.JavaSerializerInstance.deserialize(JavaSerializer.scala:87)
> at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:57)
> at org.apache.spark.scheduler.Task.run(Task.scala:54)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:177)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at
> java.lang.invoke.SerializedLambda.readResolve(SerializedLambda.java:230)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at
> java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:1104)
> ... 27 more
> Caused by: java.lang.IllegalArgumentException: Invalid lambda deserialization
> at
> com.seigneurin.spark.IndexTweets.$deserializeLambda$(IndexTweets.java:1)
> ... 37 more
> {noformat}
> The weird thing is, if I write the following code (the map operation is
> inside the foreachRDD), it works without problem.
> {code}
> TwitterUtils.createStream(sc, twitterAuth, filters)
> .foreachRDD(tweets -> {
> tweets.map(t -> t.getText())
> .foreach(x -> System.out.println(x));
> return null;
> });
> {code}
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