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From Rapelly Kartheek <kartheek.m...@gmail.com>
Subject UnknownhostException : home
Date Mon, 19 Jan 2015 09:33:37 GMT
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

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