Hi, I get the following exception when I run my application:
karthik@karthik:~/spark-1.2.0$ ./bin/spark-submit --class org.apache.spark.examples.SimpleApp001 --deploy-mode client --master spark://karthik:7077 $SPARK_HOME/examples/*/scala-*/spark-examples-*.jar >out1.txt log4j:WARN No such property [target] in org.apache.log4j.FileAppender. Exception in thread "main" java.lang.IllegalArgumentException: java.net.UnknownHostException: home at org.apache.hadoop.security.SecurityUtil.buildTokenService(SecurityUtil.java:377) at org.apache.hadoop.hdfs.NameNodeProxies.createNonHAProxy(NameNodeProxies.java:237) at org.apache.hadoop.hdfs.NameNodeProxies.createProxy(NameNodeProxies.java:141) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:569) at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:512) at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:142) at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2316) at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:366) at org.apache.spark.util.FileLogger.<init>(FileLogger.scala:90) at org.apache.spark.scheduler.EventLoggingListener.<init>(EventLoggingListener.scala:63) at org.apache.spark.SparkContext.<init>(SparkContext.scala:352) at org.apache.spark.examples.SimpleApp001$.main(SimpleApp001.scala:13) at org.apache.spark.examples.SimpleApp001.main(SimpleApp001.scala) 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.deploy.SparkSubmit$.launch(SparkSubmit.scala:358) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:75) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) Caused by: java.net.UnknownHostException: home ... 20 more I couldn't trace the cause of this exception. Any help in this regard? Thanks