title: Spark Memory issue
body: <p>Hi I am very new to Spark.I am trying to execute the following command on Apache Spark scala command line<br>
    <pre>        scala> val files=sc.textFile("/home/test/u.item")
                 14/12/06 09:57:40 INFO MemoryStore: ensureFreeSpace(165239) called with 
                 curMem=0, maxMem=278302556
                 14/12/06 09:57:40 INFO MemoryStore: Block broadcast_0 stored as values in 
                 memory (estimated size 161.4 KB, free 265.3 MB)
                 files: org.apache.spark.rdd.RDD[String] = /home/test/u.item MappedRDD[1] at
                 textFile at :12</pre></p>
  
  <p>May I please know the steps to correct the above error</p>