Github user yssharma commented on the issue:
https://github.com/apache/spark/pull/17467
Just for info, while trying to use the `sc` in the `KinesisBackedBlockRDD `
:
`- Basic reading from Kinesis *** FAILED ***
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$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2284)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2058)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2084)
at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:936)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
at
org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
at org.apache.spark.rdd.RDD.withScope(RDD.scala:362)
...
Cause: java.io.NotSerializableException: org.apache.spark.SparkContext
Serialization stack:
- object not serializable (class: org.apache.spark.SparkContext, value:
org.apache.spark.SparkContext@60c1663c)
- field (class:
org.apache.spark.streaming.kinesis.KinesisBackedBlockRDD, name:
org$apache$spark$streaming$kinesis$KinesisBackedBlockRDD$$sc, type: class
org.apache.spark.SparkContext)
- object (class
org.apache.spark.streaming.kinesis.KinesisBackedBlockRDD,
KinesisBackedBlockRDD[0] at BlockRDD at KinesisBackedBlockRDD.scala:90)
- field (class: org.apache.spark.NarrowDependency, name: _rdd, type:
class org.apache.spark.rdd.RDD)
- object (class org.apache.spark.OneToOneDependency,
org.apache.spark.OneToOneDependency@52a33c3f)
- writeObject data (class:
scala.collection.immutable.List$SerializationProxy)
- object (class scala.collection.immutable.List$SerializationProxy,
scala.collection.immutable.List$SerializationProxy@71ed560f)
- writeReplace data (class:
scala.collection.immutable.List$SerializationProxy)
- object (class scala.collection.immutable.$colon$colon,
List(org.apache.spark.OneToOneDependency@52a33c3f))
- field (class: org.apache.spark.rdd.RDD, name:
org$apache$spark$rdd$RDD$$dependencies_, type: interface scala.collection.Seq)
- object (class org.apache.spark.rdd.MapPartitionsRDD,
MapPartitionsRDD[1] at map at KinesisBackedBlockRDDSuite.scala:83)
- field (class: org.apache.spark.rdd.RDD$$anonfun$collect$1, name:
$outer, type: class org.apache.spark.rdd.RDD)
- object (class org.apache.spark.rdd.RDD$$anonfun$collect$1,
<function0>)
- field (class:
org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13, name: $outer, type:
class org.apache.spark.rdd.RDD$$anonfun$collect$1)
- object (class
org.apache.spark.rdd.RDD$$anonfun$collect$1$$anonfun$13, <function1>)
at
org.apache.spark.serializer.SerializationDebugger$.improveException(SerializationDebugger.scala:40)
at
org.apache.spark.serializer.JavaSerializationStream.writeObject(JavaSerializer.scala:46)
at
org.apache.spark.serializer.JavaSerializerInstance.serialize(JavaSerializer.scala:100)
at
org.apache.spark.util.ClosureCleaner$.ensureSerializable(ClosureCleaner.scala:295)
at
org.apache.spark.util.ClosureCleaner$.org$apache$spark$util$ClosureCleaner$$clean(ClosureCleaner.scala:288)
at org.apache.spark.util.ClosureCleaner$.clean(ClosureCleaner.scala:108)
at org.apache.spark.SparkContext.clean(SparkContext.scala:2284)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2058)
at org.apache.spark.SparkContext.runJob(SparkContext.scala:2084)
at org.apache.spark.rdd.RDD$$anonfun$collect$1.apply(RDD.scala:936)`
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
