Spark does not require Hadoop 2 or YARN. This looks like a problem with the
Hadoop installation as it is not funding native libraries it needs to make
some security related system call. Check the installation.
On Sep 20, 2014 9:13 AM, "Manu Suryavansh" <suryavanshi.m...@gmail.com>
wrote:
> 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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>> Sent from the Apache Spark User List mailing list archive at Nabble.com.
>>
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>>
>
>
> --
> Manu Suryavansh
>
