Hive 1.0.0 not able to read Spark 1.6.1 parquet output files on EMR 4.7.0

2016-06-13 Thread mayankshete 
Hello Team ,

I am facing an issue where output files generated by Spark 1.6.1 are not
read by Hive 1.0.0 . It is because Hive 1.0.0 uses older parquet version
than Spark 1.6.1 which is using 1.7.0 parquet .

Is it possible that we can use older parquet version in Spark or newer
parquet version in Hive ?
I have tried adding parquet-hive-bundle : 1.7.0 to Hive but while reading it
throws Failed with exception
java.io.IOException:java.lang.NullPointerException . 

Can anyone give us the solution ?

Thanks ,
Mayank



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Spark Twitter Stream throws Null Pointer Exception

2016-06-01 Thread mayankshete 
  Hello Team,
  
  Can anyone tell why the below code is throwing Null Pointer Execption in
yarn-client mode whereas running on local mode. 

 / val filters = args.takeRight(0)
  val sparkConf = new SparkConf().setAppName("TwitterAnalyzer")
  val ssc = new StreamingContext(sparkConf, Seconds(2))
  val stream = TwitterUtils.createStream(ssc, None, filters)
  val training = ssc.textFileStream("/user/hadoop/Training")
  val tf = new HashingTF(numFeatures = 140)
  val text = stream.filter(x => x != null ).filter(x => x.getLang() == "en"
).map( x =>  x.getText).filter(tweet => tweet != null).map(tweet =>
tf.transform(tweet.split(" ")))/

Here is the stacktrace of the error ( Program is the user class ) :

 java.lang.NullPointerException
at com.Program$$anonfun$5.apply(Program.scala:40)
at com.Program$$anonfun$5.apply(Program.scala:40)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
at scala.collection.Iterator$$anon$11.next(Iterator.scala:328)
at scala.collection.Iterator$$anon$10.next(Iterator.scala:312)
at scala.collection.Iterator$class.foreach(Iterator.scala:727)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1157)
at
scala.collection.generic.Growable$class.$plus$plus$eq(Growable.scala:48)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:103)
at
scala.collection.mutable.ArrayBuffer.$plus$plus$eq(ArrayBuffer.scala:47)
at
scala.collection.TraversableOnce$class.to(TraversableOnce.scala:273)
at scala.collection.AbstractIterator.to(Iterator.scala:1157)
at
scala.collection.TraversableOnce$class.toBuffer(TraversableOnce.scala:265)
at scala.collection.AbstractIterator.toBuffer(Iterator.scala:1157)
at
scala.collection.TraversableOnce$class.toArray(TraversableOnce.scala:252)
at scala.collection.AbstractIterator.toArray(Iterator.scala:1157)
at
org.apache.spark.rdd.RDD$$anonfun$take$1$$anonfun$28.apply(RDD.scala:1328)
at
org.apache.spark.rdd.RDD$$anonfun$take$1$$anonfun$28.apply(RDD.scala:1328)
at
org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at
org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:1858)
at
org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at
org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:214)
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)




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ANOVA test in Spark

2016-05-13 Thread mayankshete 
Is ANOVA present in Spark Mllib if not then, when will be this feature be
available in Spark ?



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Create multiple output files from Thriftserver

2016-04-28 Thread mayankshete 
Is there a way to create multiple output files when connected from beeline to
the Thriftserver ?
Right now i am using beeline -e 'query' > output.txt which is not efficient
as it uses linux operator to combine output files .



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