pyspark🍒🥭 is delicious,just eat it!😋😋

Overview

如何用10天吃掉pyspark? 🔥 🔥

《10天吃掉那只pyspark》

《20天吃掉那只Pytorch》

《30天吃掉那只TensorFlow2》

一,pyspark 🍎 or spark-scala 🔥 ?

pyspark强于分析,spark-scala强于工程。

如果应用场景有非常高的性能需求,应该选择spark-scala.

如果应用场景有非常多的可视化和机器学习算法需求,推荐使用pyspark,可以更好地和python中的相关库配合使用。

此外spark-scala支持spark graphx图计算模块,而pyspark是不支持的。


pyspark学习曲线平缓,spark-scala学习曲线陡峭。

从学习成本来说,spark-scala学习曲线陡峭,不仅因为scala是一门困难的语言,更加因为在前方的道路上会有无尽的环境配置痛苦等待着读者。

而pyspark学习成本相对较低,环境配置相对容易。从学习成本来说,如果说pyspark的学习成本是3,那么spark-scala的学习成本大概是9。

如果读者有较强的学习能力和充分的学习时间,建议选择spark-scala,能够解锁spark的全部技能,并获得最优性能,这也是工业界最普遍使用spark的方式。

如果读者学习时间有限,并对Python情有独钟,建议选择pyspark。pyspark在工业界的使用目前也越来越普遍。


二,本书 📚 面向读者 🤗

本书假定读者具有基础的的Python编码能力,熟悉Python中numpy, pandas库的基本用法。

并且假定读者具有一定的SQL使用经验,熟悉select,join,group by等sql语法。

对于Python基础不是非常扎实的读者,可以参考《3小时Python入门》文章。

《3小时Python入门》

对于numpy和Pandas不甚了解的读者,可以参考 《3小时入门numpy,pandas,matplotlib》文章。

《3小时入门numpy,pandas,matplotlib》


三,本书写作风格 🍉

本书是一本对人类用户极其友善的pyspark入门工具书,Don't let me think是本书的最高追求。

本书主要是在参考spark官方文档,并结合作者学习使用经验基础上整理总结写成的。

不同于Spark官方文档的繁冗断码,本书在篇章结构和范例选取上做了大量的优化,在用户友好度方面更胜一筹。

本书按照内容难易程度、读者检索习惯和spark自身的层次结构设计内容,循序渐进,层次清晰,方便按照功能查找相应范例。

本书在范例设计上尽可能简约化和结构化,增强范例易读性和通用性,大部分代码片段在实践中可即取即用。

如果说通过学习spark官方文档掌握pyspark的难度大概是5,那么通过本书学习掌握pyspark的难度应该大概是2.

仅以下图对比spark官方文档与本书《10天吃掉那只pyspark》的差异。


四,本书学习方案

1,学习计划

本书是作者利用工作之余大概1个月写成的,大部分读者应该在10天可以完全学会。

预计每天花费的学习时间在30分钟到2个小时之间。

当然,本书也非常适合作为pyspark的工具手册在工程落地时作为范例库参考。

点击学习内容蓝色标题即可进入该章节。

日期 学习内容 内容难度 预计学习时间 更新状态
  一、基础篇      
day1 1-1,快速搭建你的Spark开发环境 ⭐️ ⭐️ 1hour
day2 1-2,1小时看懂Spark的基本原理 ⭐️ ⭐️ ⭐️ 1hour
  二、核心篇      
day3 2-1,2小时入门Spark之RDD编程 ⭐️ ⭐️ ⭐️ 2hour
day4 2-2,7道RDD编程练习题 ⭐️ ⭐️ ⭐️ 1hour
day5 2-3,2小时入门SparkSQL编程 ⭐️ ⭐️ ⭐️ 2hour
day6 2-4,7道SparkSQL编程练习题 ⭐️ ⭐️ ⭐️ 1hour
  三、进阶篇      
day7 3-1,Spark性能调优方法 ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ 2hour
day8 3-2,RDD和SparkSQL综合应用 ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ 2hour
  四、拓展篇      
day9 4-1,探索MLlib机器学习 ⭐️ ⭐️ ⭐️ ⭐️ 2hour
day10 4-2,初识StructuredStreaming ⭐️ ⭐️ ⭐️ ⭐️ 2hour

2,学习环境

本书全部源码在jupyter中编写测试通过,建议通过git克隆到本地,并在jupyter中交互式运行学习。

为了直接能够在jupyter中打开markdown文件,建议安装jupytext,将markdown转换成ipynb文件。

为简单起见,本书按照如下2个步骤配置单机版spark3.0.1环境进行练习。

step1: 安装java8

jdk下载地址:https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

java安装教程:https://www.runoob.com/java/java-environment-setup.html

step2: 安装pyspark,findspark

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyspark

pip install findspark

此外,也可以在kesci云端notebook中直接运行pyspark

https://www.kesci.com/home/project

import findspark

#指定spark_home,指定python路径
spark_home = "/Users/liangyun/anaconda3/lib/python3.7/site-packages/pyspark"
python_path = "/Users/liangyun/anaconda3/bin/python"
findspark.init(spark_home,python_path)

import pyspark 
from pyspark import SparkContext, SparkConf
conf = SparkConf().setAppName("test").setMaster("local[4]")
sc = SparkContext(conf=conf)

print("spark version:",pyspark.__version__)
rdd = sc.parallelize(["hello","spark"])
print(rdd.reduce(lambda x,y:x+' '+y))
spark version: 3.0.1
hello spark

除了以上方法外,也可以参考1-1节中介绍的其它方法。

1-1,快速搭建你的Spark开发环境


五,鼓励和联系作者

如果本书对你有所帮助,想鼓励一下作者,记得给本项目加一颗星星star ⭐️ ,并分享给你的朋友们喔 😊 !

如果对本书内容理解上有需要进一步和作者交流的地方,欢迎在公众号"算法美食屋"下留言。作者时间和精力有限,会酌情予以回复。

也可以在公众号后台回复关键字:spark加群,加入spark和大数据读者交流群和大家讨论。

image.png


Owner
lyhue1991
dream-->design-->deliever😋😋
lyhue1991
Implementation of the algorithm shown in the article "Modelo de Predicción de Éxito de Canciones Basado en Descriptores de Audio"

Success Predictor Implementation of the algorithm shown in the article "Modelo de Predicción de Éxito de Canciones Basado en Descriptores de Audio". B

Rodrigo Nazar Meier 4 Mar 17, 2022
Source code for the NeurIPS 2021 paper "On the Second-order Convergence Properties of Random Search Methods"

Second-order Convergence Properties of Random Search Methods This repository the paper "On the Second-order Convergence Properties of Random Search Me

Adamos Solomou 0 Nov 13, 2021
Benchmark datasets, data loaders, and evaluators for graph machine learning

Overview The Open Graph Benchmark (OGB) is a collection of benchmark datasets, data loaders, and evaluators for graph machine learning. Datasets cover

1.5k Jan 05, 2023
Learning Skeletal Articulations with Neural Blend Shapes

This repository provides an end-to-end library for automatic character rigging and blend shapes generation as well as a visualization tool. It is based on our work Learning Skeletal Articulations wit

Peizhuo 504 Dec 30, 2022
A new play-and-plug method of controlling an existing generative model with conditioning attributes and their compositions.

Viz-It Data Visualizer Web-Application If I ask you where most of the data wrangler looses their time ? It is Data Overview and EDA. Presenting "Viz-I

NVIDIA Research Projects 66 Jan 01, 2023
This repository is the official implementation of Open Rule Induction. This paper has been accepted to NeurIPS 2021.

Open Rule Induction This repository is the official implementation of Open Rule Induction. This paper has been accepted to NeurIPS 2021. Abstract Rule

Xingran Chen 16 Nov 14, 2022
The devkit of the nuPlan dataset.

The devkit of the nuPlan dataset.

Motional 264 Jan 03, 2023
Label Hallucination for Few-Shot Classification

Label Hallucination for Few-Shot Classification This repo covers the implementation of the following paper: Label Hallucination for Few-Shot Classific

Yiren Jian 13 Nov 13, 2022
PyTorch implementation of PP-LCNet: A Lightweight CPU Convolutional Neural Network

PyTorch implementation of PP-LCNet Reproduction of PP-LCNet architecture as described in PP-LCNet: A Lightweight CPU Convolutional Neural Network by C

Quan Nguyen (Fly) 47 Nov 02, 2022
FOSS Digital Asset Distribution Platform built on Frappe.

Digistore FOSS Digital Assets Marketplace. Distribute digital assets, like a pro. Video Demo Here Features Create, attach and list digital assets (PDF

Mohammad Hussain Nagaria 30 Dec 08, 2022
Spiking Neural Network for Computer Vision using SpikingJelly framework and Pytorch-Lightning

Spiking Neural Network for Computer Vision using SpikingJelly framework and Pytorch-Lightning

Sami BARCHID 2 Oct 20, 2022
Rainbow DQN implementation that outperforms the paper's results on 40% of games using 20x less data 🌈

Rainbow 🌈 An implementation of Rainbow DQN which reaches a median HNS of 205.7 after only 10M frames (the original Rainbow from Hessel et al. 2017 re

Dominik Schmidt 31 Dec 21, 2022
Learning and Building Convolutional Neural Networks using PyTorch

Image Classification Using Deep Learning Learning and Building Convolutional Neural Networks using PyTorch. Models, selected are based on number of ci

Mayur 126 Dec 22, 2022
we propose a novel deep network, named feature aggregation and refinement network (FARNet), for the automatic detection of anatomical landmarks.

Feature Aggregation and Refinement Network for 2D Anatomical Landmark Detection Overview Localization of anatomical landmarks is essential for clinica

aoyueyuan 0 Aug 28, 2022
Clustering is a popular approach to detect patterns in unlabeled data

Visual Clustering Clustering is a popular approach to detect patterns in unlabeled data. Existing clustering methods typically treat samples in a data

Tarek Naous 24 Nov 11, 2022
A simple software for capturing human body movements using the Kinect camera.

KinectMotionCapture A simple software for capturing human body movements using the Kinect camera. The software can seamlessly save joints and bones po

Aleksander Palkowski 5 Aug 13, 2022
chen2020iros: Learning an Overlap-based Observation Model for 3D LiDAR Localization.

Overlap-based 3D LiDAR Monte Carlo Localization This repo contains the code for our IROS2020 paper: Learning an Overlap-based Observation Model for 3D

Photogrammetry & Robotics Bonn 219 Dec 15, 2022
Fuzzing the Kernel Using Unicornafl and AFL++

Unicorefuzz Fuzzing the Kernel using UnicornAFL and AFL++. For details, skim through the WOOT paper or watch this talk at CCCamp19. Is it any good? ye

Security in Telecommunications 283 Dec 26, 2022
Caffe: a fast open framework for deep learning.

Caffe Caffe is a deep learning framework made with expression, speed, and modularity in mind. It is developed by Berkeley AI Research (BAIR)/The Berke

Berkeley Vision and Learning Center 33k Dec 28, 2022