Hi Moshe,
Spark needs a Hadoop 2.x/YARN cluster. Other wise you can run it without
hadoop in the stand alone mode.
Manu
On Sat, Sep 20, 2014 at 12:55 AM, Moshe Beeri <moshe.be...@gmail.com> wrote:
> object Nizoz {
>
> def connect(): Unit = {
> val conf = new SparkConf().setAppName("nizoz").setMaster("master");
> val spark = new SparkContext(conf)
> val lines =
>
> spark.textFile("file:///home/moshe/store/frameworks/spark-1.1.0-bin-hadoop1/README.md")
> val lineLengths = lines.map(s => s.length)
> val totalLength = lineLengths.reduce((a, b) => a + b)
> println("totalLength=" + totalLength)
>
> }
>
> def main(args: Array[String]) {
> println(scala.tools.nsc.Properties.versionString)
> try {
> //Nizoz.connect
> val logFile =
> "/home/moshe/store/frameworks/spark-1.1.0-bin-hadoop1/README.md" // Should
> be some file on your system
> val conf = new SparkConf().setAppName("Simple
> Application").setMaster("spark://master:7077")
> val sc = new SparkContext(conf)
> val logData = sc.textFile(logFile, 2).cache()
> val numAs = logData.filter(line => line.contains("a")).count()
> val numBs = logData.filter(line => line.contains("b")).count()
> println("Lines with a: %s, Lines with b: %s".format(numAs, numBs))
>
> } catch {
> case e => {
> println(e.getCause())
> println("stack:")
> e.printStackTrace()
> }
> }
> }
> }
> Runs with Scala 2.10.4
> The problem is this [vogue] exception:
>
> at com.example.scamel.Nizoz.main(Nizoz.scala)
> Caused by: java.lang.RuntimeException:
> java.lang.reflect.InvocationTargetException
> at
>
> org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131)
> at org.apache.hadoop.security.Groups.<init>(Groups.java:64)
> at
>
> org.apache.hadoop.security.Groups.getUserToGroupsMappingService(Groups.java:240)
> ...
> Caused by: java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
> Method)
> at
>
> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
> at
>
> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> ...
> ... 10 more
> Caused by: java.lang.UnsatisfiedLinkError:
> org.apache.hadoop.security.JniBasedUnixGroupsMapping.anchorNative()V
> at
> org.apache.hadoop.security.JniBasedUnixGroupsMapping.anchorNative(Native
> Method)
> at
>
> org.apache.hadoop.security.JniBasedUnixGroupsMapping.<clinit>(JniBasedUnixGroupsMapping.java:49)
>
> I have Hadoop 1.2.1 running on Ubuntu 14.04, the Scala console run as
> expected.
>
> What am I doing wrong?
> Any idea will be welcome
>
>
>
>
>
> --
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>
--
Manu Suryavansh
