NoClassDefFoundError com.apache.hadoop.fs.FSDataInputStream when execute spark-shell

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The “without Hadoop” in the Spark’s build name is misleading: it means the build is not tied to a specific Hadoop distribution, not that it is meant to run without it: the user should indicate where to find Hadoop (see https://spark.apache.org/docs/latest/hadoop-provided.html)

One clean way to fix this issue is to:

  1. Obtain Hadoop Windows binaries. Ideally build them, but this is painful (for some hints see: Hadoop on Windows Building/ Installation Error). Otherwise Google some up, for instance currently you can download 2.6.0 from here: http://www.barik.net/archive/2015/01/19/172716/
  2. Create a spark-env.cmd file looking like this (modify Hadoop path to match your installation):

    @echo off
    set HADOOP_HOME=D:\Utils\hadoop-2.7.1
    set PATH=%HADOOP_HOME%\bin;%PATH%
    set SPARK_DIST_CLASSPATH=<paste here the output of %HADOOP_HOME%\bin\hadoop classpath>
  3. Put this spark-env.cmd either in a conf folder located at the same level as your Spark base folder (which may look weird), or in a folder indicated by the SPARK_CONF_DIR environment variable.

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