无法运行Spark CassandraTest示例

尝试编写自己的Spark应用程序时，我开始遇到此问题，最后退而去，只是尝试使示例运行-我一直无法做到。

我跑了bin/run-example CassandraTest localhost localhost 9160，遇到以下错误。（我bin/run-example CassandraTest localhost 9160在那之前跑了，但是得到了ArrayOutOfBoundsException，所以我只是把东西放到了第一位）

Exception in thread "main" java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected
at org.apache.cassandra.hadoop.AbstractColumnFamilyInputFormat.getSplits(AbstractColumnFamilyInputFormat.java:113)
at org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:90)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:202)
at org.apache.spark.rdd.MappedRDD.getPartitions(MappedRDD.scala:28)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:202)
at org.apache.spark.rdd.FlatMappedRDD.getPartitions(FlatMappedRDD.scala:30)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:202)
at org.apache.spark.rdd.MappedRDD.getPartitions(MappedRDD.scala:28)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:204)
at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:202)
at scala.Option.getOrElse(Option.scala:120)
at org.apache.spark.rdd.RDD.partitions(RDD.scala:202)
at org.apache.spark.Partitioner$.defaultPartitioner(Partitioner.scala:59)
at org.apache.spark.rdd.PairRDDFunctions.reduceByKey(PairRDDFunctions.scala:370)
at org.apache.spark.examples.CassandraTest$.main(CassandraTest.scala:100)
at org.apache.spark.examples.CassandraTest.main(CassandraTest.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.spark.deploy.SparkSubmit$.launch(SparkSubmit.scala:292)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:55)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

我的配置：

• spark-1.0.0-bin-hadoop2（二进制发行版，带有示例源，但没有sbt或构建文件）。我没有对该文件夹中的任何文件进行任何更改。
• 在一个单独的过程中运行cassandra 1.2.16（sudo bin/cassandra start从我下载的未压缩二进制包开始使用）。我也尝试过1.2.6和2.0.6。
• OSX 10.9上的Oracle Java 7

我希望有人可以帮助我，这样我就可以克服这个错误，并开始在Cassandra中使用Spark。