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https://issues.apache.org/jira/browse/SPARK-5146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269307#comment-14269307
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Sean Owen commented on SPARK-5146:
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This sounds like a duplicate of https://issues.apache.org/jira/browse/SPARK-4196
> saveAsHadoopFiles does not work with checkpointing
> --------------------------------------------------
>
> Key: SPARK-5146
> URL: https://issues.apache.org/jira/browse/SPARK-5146
> Project: Spark
> Issue Type: Bug
> Affects Versions: 1.2.0
> Reporter: Halit Olali
> Priority: Minor
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Hello folks,
> Consider the following simple app for word counting via network socket:
> val conf = new SparkConf().setAppName("Sample Application")
> val sc = new SparkContext(conf)
> val ssc = new StreamingContext(sc, Seconds(5))
> ssc.checkpoint("target/checkpointDir")
> val lines = ssc.socketTextStream("localhost", 9999)
> val words = lines.flatMap(_.split(" "))
> val pairs = words.map(word => (word, 1))
> val wordCounts = pairs.reduceByKey(_ + _)
> wordCounts.saveAsHadoopFiles("target/prefix","suffix")
> //nc -lk 9999
> ssc.start()
> ssc.awaitTermination(60)
> When this is packaged and executed on spark, following exception is thrown:
> java.io.NotSerializableException: org.apache.hadoop.mapred.JobConf
> JobConf usage inside saveAsHadoopFiles methods seems to be the cause.
> Thanks
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