Your hdfs is down. Probably forgot to format namenode.

check if namenode is running

   ps -aef|grep Namenode

if not & data in hdfs is not critical

hadoop namenode -format

& restart hdfs

Mayur Rustagi
Ph: +1 (760) 203 3257

http://www.sigmoidanalytics.com

@mayur_rustagi

On Tue, Mar 18, 2014 at 5:59 AM, Sai Prasanna <ansaiprasanna@gmail.com> wrote:

Hi ALL !!

In the interactive spark shell i get the following error.

I just followed the steps of the video "First steps with spark - spark screen cast #1" by andy konwinski...

Any thoughts ???

scala> val textfile = sc.textFile("README.md")

textfile: org.apache.spark.rdd.RDD[String] = MappedRDD[1] at textFile at <console>:12

scala> textfile.count

java.lang.RuntimeException: java.net.ConnectException: Call to master/192.168.1.11:9000 failed on connection exception: java.net.ConnectException: Connection refused

at org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:546)

at org.apache.hadoop.mapred.FileInputFormat.setInputPaths(FileInputFormat.java:318)

at org.apache.hadoop.mapred.FileInputFormat.setInputPaths(FileInputFormat.java:291)

at org.apache.spark.SparkContext$$anonfun$13.apply(SparkContext.scala:439)

at org.apache.spark.SparkContext$$anonfun$13.apply(SparkContext.scala:439)

at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$1.apply(HadoopRDD.scala:112)

at org.apache.spark.rdd.HadoopRDD$$anonfun$getJobConf$1.apply(HadoopRDD.scala:112)

at scala.Option.map(Option.scala:133)

at org.apache.spark.rdd.HadoopRDD.getJobConf(HadoopRDD.scala:112)

at org.apache.spark.rdd.HadoopRDD.getPartitions(HadoopRDD.scala:134)

at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:201)

at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:199)

at scala.Option.getOrElse(Option.scala:108)

at org.apache.spark.rdd.RDD.partitions(RDD.scala:199)

at org.apache.spark.rdd.MappedRDD.getPartitions(MappedRDD.scala:26)

at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:201)

at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:199)

at scala.Option.getOrElse(Option.scala:108)

at org.apache.spark.rdd.RDD.partitions(RDD.scala:199)

at org.apache.spark.SparkContext.runJob(SparkContext.scala:886)

at org.apache.spark.rdd.RDD.count(RDD.scala:698)

at <init>(<console>:15)

at <init>(<console>:20)

at <init>(<console>:22)

at <init>(<console>:24)

at <init>(<console>:26)

at .<init>(<console>:30)

at .<clinit>(<console>)

at .<init>(<console>:11)

at .<clinit>(<console>)

at $export(<console>)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:629)

at org.apache.spark.repl.SparkIMain$Request$$anonfun$10.apply(SparkIMain.scala:897)

at scala.tools.nsc.interpreter.Line$$anonfun$1.apply$mcV$sp(Line.scala:43)

at scala.tools.nsc.io.package$$anon$2.run(package.scala:25)

at java.lang.Thread.run(Thread.java:744)

Caused by: java.net.ConnectException: Call to master/192.168.1.11:9000 failed on connection exception: java.net.ConnectException: Connection refused

at org.apache.hadoop.ipc.Client.wrapException(Client.java:1099)

at org.apache.hadoop.ipc.Client.call(Client.java:1075)

at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:225)

at com.sun.proxy.$Proxy8.getProtocolVersion(Unknown Source)

at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:396)

at org.apache.hadoop.ipc.RPC.getProxy(RPC.java:379)

at org.apache.hadoop.hdfs.DFSClient.createRPCNamenode(DFSClient.java:119)

at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:238)

at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:203)

at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:89)

at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:1386)

at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:66)

at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1404)

at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:254)

at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:123)

at org.apache.hadoop.mapred.JobConf.getWorkingDirectory(JobConf.java:542)

... 39 more

Caused by: java.net.ConnectException: Connection refused

at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)

at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)

at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)

at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:434)

at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:560)

at org.apache.hadoop.ipc.Client$Connection.access$2000(Client.java:184)

at org.apache.hadoop.ipc.Client.getConnection(Client.java:1206)

at org.apache.hadoop.ipc.Client.call(Client.java:1050)

... 53 more

--

Sai Prasanna. AN

II M.Tech (CS), SSSIHL

Entire water in the ocean can never sink a ship, Unless it gets inside.
All the pressures of life can never hurt you, Unless you let them in.