Nick Hryhoriev created SPARK-20080:
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Summary: Spak streaming up do not throw serialisation exception in
foreachRDD
Key: SPARK-20080
URL: https://issues.apache.org/jira/browse/SPARK-20080
Project: Spark
Issue Type: Bug
Components: DStreams
Affects Versions: 2.1.0
Environment: local spark and yarn from big top 1.1.0 version
Reporter: Nick Hryhoriev
Priority: Minor
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When i try use or init org.slf4j.Logger inside foreachPartition. I have found
that foreachPartition method do not execute and no exception appeared. Tested
on local and yarn mode spark.
code can be found on github. There are two main class that explain problem.
if i will run same code with batch job. I will get right exception.
Exception in thread "main" org.apache.spark.SparkException: Task not
serializable
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:298)
at
org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2094)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:924)
at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:923)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
at org.apache.spark.rdd.RDD.withScope(RDD.scala:362)
at org.apache.spark.rdd.RDD.foreachPartition(RDD.scala:923)
at TraitWithMethod$class.executeForEachpartitoin(TraitWithMethod.scala:12)
at ReproduceBugMain$.executeForEachpartitoin(ReproduceBugMain.scala:7)
at ReproduceBugMain$.main(ReproduceBugMain.scala:14)
at ReproduceBugMain.main(ReproduceBugMain.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
Caused by: java.io.NotSerializableException: ReproduceBugMain$
Serialization stack:
- object not serializable (class: ReproduceBugMain$, value:
ReproduceBugMain$@3935e9a8)
- field (class: TraitWithMethod$$anonfun$executeForEachpartitoin$1, name:
$outer, type: interface TraitWithMethod)
- object (class TraitWithMethod$$anonfun$executeForEachpartitoin$1,
<function1>)
at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
... 18 more
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