scratch notes on spark

1 files changed, 362 insertions, 0 deletions

diff --git a/scratch/HelloWorld.ipynb b/scratch/HelloWorld.ipynb
new file mode 100644
index 0000000..e382aa4
--- /dev/null
+++ b/scratch/HelloWorld.ipynb
@@ -0,0 +1,362 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": 11,
+   "id": "6974daac",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from pyspark.sql import SparkSession\n",
+    "from pyspark.context import SparkContext"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 12,
+   "id": "e72fbe47",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "pyspark.sql.session.SparkSession"
+      ]
+     },
+     "execution_count": 12,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "SparkSession"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 13,
+   "id": "9333e07a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "spark = SparkSession.builder.master(\"local\").appName(\"HelloWorld\").getOrCreate()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "adf79021",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "            <div>\n",
+       "                <p><b>SparkSession - hive</b></p>\n",
+       "                \n",
+       "        <div>\n",
+       "            <p><b>SparkContext</b></p>\n",
+       "\n",
+       "            <p><a href=\"http://192.168.179.73:4040\">Spark UI</a></p>\n",
+       "\n",
+       "            <dl>\n",
+       "              <dt>Version</dt>\n",
+       "                <dd><code>v3.1.1</code></dd>\n",
+       "              <dt>Master</dt>\n",
+       "                <dd><code>local[*]</code></dd>\n",
+       "              <dt>AppName</dt>\n",
+       "                <dd><code>PySparkShell</code></dd>\n",
+       "            </dl>\n",
+       "        </div>\n",
+       "        \n",
+       "            </div>\n",
+       "        "
+      ],
+      "text/plain": [
+       "<pyspark.sql.session.SparkSession at 0x7f63b4051650>"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "spark"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 15,
+   "id": "324b74ca",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "'3.1.1'"
+      ]
+     },
+     "execution_count": 15,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "spark.version"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 17,
+   "id": "856f2700",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "sc = SparkContext.getOrCreate()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 18,
+   "id": "7218a07f",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/html": [
+       "\n",
+       "        <div>\n",
+       "            <p><b>SparkContext</b></p>\n",
+       "\n",
+       "            <p><a href=\"http://192.168.179.73:4040\">Spark UI</a></p>\n",
+       "\n",
+       "            <dl>\n",
+       "              <dt>Version</dt>\n",
+       "                <dd><code>v3.1.1</code></dd>\n",
+       "              <dt>Master</dt>\n",
+       "                <dd><code>local[*]</code></dd>\n",
+       "              <dt>AppName</dt>\n",
+       "                <dd><code>PySparkShell</code></dd>\n",
+       "            </dl>\n",
+       "        </div>\n",
+       "        "
+      ],
+      "text/plain": [
+       "<SparkContext master=local[*] appName=PySparkShell>"
+      ]
+     },
+     "execution_count": 18,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "sc"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 23,
+   "id": "17114da3",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "txt = sc.textFile('file:////usr/share/doc/python3/copyright')"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 24,
+   "id": "c1af9b77",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "file:////usr/share/doc/python3/copyright MapPartitionsRDD[4] at textFile at NativeMethodAccessorImpl.java:0"
+      ]
+     },
+     "execution_count": 24,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "txt"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 25,
+   "id": "ee37564c",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "pyspark.rdd.RDD"
+      ]
+     },
+     "execution_count": 25,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "type(txt)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 26,
+   "id": "208ef97a",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "319"
+      ]
+     },
+     "execution_count": 26,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "txt.count()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 27,
+   "id": "06f807b8",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "python_lines = txt.filter(lambda line: 'python' in line.lower())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 28,
+   "id": "ff2835b7",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "52\n"
+     ]
+    }
+   ],
+   "source": [
+    "print(python_lines.count())"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 30,
+   "id": "9c8ec8c7",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "['This is the Debian GNU/Linux prepackaged version of the Python programming',\n",
+       " 'language. Python was written by Guido van Rossum <guido@cwi.nl> and others.',\n",
+       " 'sources from ftp.python.org:/pub/python, based on the Debianization by',\n",
+       " 'Python was created in the early 1990s by Guido van Rossum at Stichting',\n",
+       " \"as a successor of a language called ABC.  Guido remains Python's\",\n",
+       " 'In 1995, Guido continued his work on Python at the Corporation for',\n",
+       " 'In May 2000, Guido and the Python core development team moved to',\n",
+       " 'BeOpen.com to form the BeOpen PythonLabs team.  In October of the same',\n",
+       " 'year, the PythonLabs team moved to Digital Creations (now Zope',\n",
+       " 'Corporation, see http://www.zope.com).  In 2001, the Python Software',\n",
+       " 'Foundation (PSF, see http://www.python.org/psf/) was formed, a',\n",
+       " 'non-profit organization created specifically to own Python-related',\n",
+       " 'All Python releases are Open Source (see http://www.opensource.org for',\n",
+       " 'the Open Source Definition).  Historically, most, but not all, Python',\n",
+       " \"(1) GPL-compatible doesn't mean that we're distributing Python under\",\n",
+       " '    the GPL.  All Python licenses, unlike the GPL, let you distribute',\n",
+       " '    GPL-compatible licenses make it possible to combine Python with',\n",
+       " 'B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON',\n",
+       " 'PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2',\n",
+       " '1. This LICENSE AGREEMENT is between the Python Software Foundation',\n",
+       " 'otherwise using this software (\"Python\") in source or binary form and',\n",
+       " 'distribute, and otherwise use Python alone or in any derivative version,',\n",
+       " 'Python Software Foundation; All Rights Reserved\" are retained in Python alone or',\n",
+       " 'or incorporates Python or any part thereof, and wants to make',\n",
+       " 'the changes made to Python.',\n",
+       " '4. PSF is making Python available to Licensee on an \"AS IS\"',\n",
+       " 'FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT',\n",
+       " '5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON',\n",
+       " 'A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,',\n",
+       " '8. By copying, installing or otherwise using Python, Licensee',\n",
+       " 'BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0',\n",
+       " 'BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1',\n",
+       " '2. Subject to the terms and conditions of this BeOpen Python License',\n",
+       " 'provided, however, that the BeOpen Python License is retained in the',\n",
+       " 'third party.  As an exception, the \"BeOpen Python\" logos available at',\n",
+       " 'http://www.pythonlabs.com/logos.html may be used according to the',\n",
+       " 'CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1',\n",
+       " '(\"Licensee\") accessing and otherwise using Python 1.6.1 software in',\n",
+       " 'prepare derivative works, distribute, and otherwise use Python 1.6.1',\n",
+       " 'Reserved\" are retained in Python 1.6.1 alone or in any derivative',\n",
+       " 'quotes): \"Python 1.6.1 is made available subject to the terms and',\n",
+       " 'Python 1.6.1 may be located on the Internet using the following',\n",
+       " 'or incorporates Python 1.6.1 or any part thereof, and wants to make',\n",
+       " 'the changes made to Python 1.6.1.',\n",
+       " '4. CNRI is making Python 1.6.1 available to Licensee on an \"AS IS\"',\n",
+       " 'FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT',\n",
+       " '5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON',\n",
+       " 'A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,',\n",
+       " 'on Python 1.6.1 that incorporate non-separable material that was',\n",
+       " 'installing or otherwise using Python 1.6.1, Licensee agrees to be',\n",
+       " 'CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2',\n",
+       " 'py3compile, py3clean and debpython module:']"
+      ]
+     },
+     "execution_count": 30,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "python_lines.collect()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "9c60ff17",
+   "metadata": {},
+   "outputs": [],
+   "source": []
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "cgraph",
+   "language": "python",
+   "name": "cgraph"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.7.8"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}