Spark+Cluster+Test.ipynb

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   "source": [
    "import os\n",
    "# make sure pyspark tells workers to use python3 not 2 if both are installed\n",
    "os.environ['PYSPARK_PYTHON'] = '/opt/conda/bin/python3'\n",
    "\n",
    "import pyspark\n",
    "conf = pyspark.SparkConf()\n",
    "\n",
    "conf.setMaster(\"spark://spark-master:7077\")\n",
    "conf.setAppName('clustertest')\n",
    "\n",
    "sc = pyspark.SparkContext(conf=conf)\n",
    "\n",
    "rdd = sc.parallelize(range(100))\n",
    "rdd.sumApprox(3)"
   ]
  },
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   "source": [
    "sc.stop()"
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