Github user zjffdu commented on the pull request:
https://github.com/apache/spark/pull/8649#issuecomment-138411720
Paste the new exception after this patch.
```
15/09/08 10:05:52 ERROR SparkContext: Error initializing SparkContext.
org.apache.spark.SparkException: Could not find jar with spark-yarn related
code,Make sure SPARK_PREPEND_CLASSES is not set
at
org.apache.spark.deploy.yarn.Client$$anonfun$org$apache$spark$deploy$yarn$Client$$sparkJar$2.apply(Client.scala:1048)
at
org.apache.spark.deploy.yarn.Client$$anonfun$org$apache$spark$deploy$yarn$Client$$sparkJar$2.apply(Client.scala:1048)
at scala.Option.getOrElse(Option.scala:120)
at
org.apache.spark.deploy.yarn.Client$.org$apache$spark$deploy$yarn$Client$$sparkJar(Client.scala:1048)
at
org.apache.spark.deploy.yarn.Client$.populateClasspath(Client.scala:1160)
at org.apache.spark.deploy.yarn.Client.setupLaunchEnv(Client.scala:534)
at
org.apache.spark.deploy.yarn.Client.createContainerLaunchContext(Client.scala:645)
at
org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:119)
at
org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:56)
at
org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:144)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:514)
at com.zjffdu.tutorial.spark.WordCount$.main(WordCount.scala:24)
at com.zjffdu.tutorial.spark.WordCount.main(WordCount.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at
org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:680)
at
org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:120)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
```
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