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
Rainbow is all you need! A step-by-step tutorial from DQN to Rainbow

Do you want a RL agent nicely moving on Atari? Rainbow is all you need! This is a step-by-step tutorial from DQN to Rainbow. Every chapter contains bo

Jinwoo Park (Curt) 1.4k Dec 29, 2022
PyTorch implementation for paper Neural Marching Cubes.

NMC PyTorch implementation for paper Neural Marching Cubes, Zhiqin Chen, Hao Zhang. Paper | Supplementary Material (to be updated) Citation If you fin

Zhiqin Chen 109 Dec 27, 2022
PyZebrascope - an open-source Python platform for brain-wide neural activity imaging in behaving zebrafish

PyZebrascope - an open-source Python platform for brain-wide neural activity imaging in behaving zebrafish

1 May 31, 2022
Fashion Entity Classification

Fashion-Entity-Classification - Fashion-MNIST is a dataset of Zalando's article images—consisting of a training set of 60,000 examples and a test set of 10,000 examples. Each example is a 28x28 grays

ADITYA SHAH 1 Jan 04, 2022
Code for Domain Adaptive Video Segmentation via Temporal Consistency Regularization in ICCV 2021

Domain Adaptive Video Segmentation via Temporal Consistency Regularization Updates 08/2021: check out our domain adaptation for sematic segmentation p

36 Dec 12, 2022
Implementation of a Transformer, but completely in Triton

Transformer in Triton (wip) Implementation of a Transformer, but completely in Triton. I'm completely new to lower-level neural net code, so this repo

Phil Wang 152 Dec 22, 2022
This repo contains research materials released by members of the Google Brain team in Tokyo.

Brain Tokyo Workshop 🧠 🗼 This repo contains research materials released by members of the Google Brain team in Tokyo. Past Projects Weight Agnostic

Google 1.2k Jan 02, 2023
Implementation of Stochastic Image-to-Video Synthesis using cINNs.

Stochastic Image-to-Video Synthesis using cINNs Official PyTorch implementation of Stochastic Image-to-Video Synthesis using cINNs accepted to CVPR202

CompVis Heidelberg 135 Dec 28, 2022
PyTorch implementation of "PatchGame: Learning to Signal Mid-level Patches in Referential Games" to appear in NeurIPS 2021

PatchGame: Learning to Signal Mid-level Patches in Referential Games This repository is the official implementation of the paper - "PatchGame: Learnin

Kamal Gupta 22 Mar 16, 2022
🛰️ Awesome Satellite Imagery Datasets

Awesome Satellite Imagery Datasets List of aerial and satellite imagery datasets with annotations for computer vision and deep learning. Newest datase

Christoph Rieke 3k Jan 03, 2023
Benchmark library for high-dimensional HPO of black-box models based on Weighted Lasso regression

LassoBench LassoBench is a library for high-dimensional hyperparameter optimization benchmarks based on Weighted Lasso regression. Note: LassoBench is

Kenan Šehić 5 Mar 15, 2022
SAT: 2D Semantics Assisted Training for 3D Visual Grounding, ICCV 2021 (Oral)

SAT: 2D Semantics Assisted Training for 3D Visual Grounding SAT: 2D Semantics Assisted Training for 3D Visual Grounding by Zhengyuan Yang, Songyang Zh

Zhengyuan Yang 22 Nov 30, 2022
An efficient 3D semantic segmentation framework for Urban-scale point clouds like SensatUrban, Campus3D, etc.

An efficient 3D semantic segmentation framework for Urban-scale point clouds like SensatUrban, Campus3D, etc.

Zou 33 Jan 03, 2023
Meta-learning for NLP

Self-Supervised Meta-Learning for Few-Shot Natural Language Classification Tasks Code for training the meta-learning models and fine-tuning on downstr

IESL 43 Nov 08, 2022
Bottom-up attention model for image captioning and VQA, based on Faster R-CNN and Visual Genome

bottom-up-attention This code implements a bottom-up attention model, based on multi-gpu training of Faster R-CNN with ResNet-101, using object and at

Peter Anderson 1.3k Jan 09, 2023
PyContinual (An Easy and Extendible Framework for Continual Learning)

PyContinual (An Easy and Extendible Framework for Continual Learning) Easy to Use You can sumply change the baseline, backbone and task, and then read

Zixuan Ke 176 Jan 05, 2023
Addon and nodes for working with structural biology and molecular data in Blender.

Molecular Nodes 🧬 🔬 💻 Buy Me a Coffee to Keep Development Going! Join a Community of Blender SciVis People! What is Molecular Nodes? Molecular Node

Brady Johnston 456 Jan 08, 2023
Look Who’s Talking: Active Speaker Detection in the Wild

Look Who's Talking: Active Speaker Detection in the Wild Dependencies pip install -r requirements.txt In addition to the Python dependencies, ffmpeg

Clova AI Research 60 Dec 08, 2022
Repo for the ACMMM20 submission: "Personalized breath based biometric authentication with wearable multimodality".

personalized-breath Repo for the ACMMM20 submission: "Personalized breath based biometric authentication with wearable multimodality". Guideline To ex

Manh-Ha Bui 2 Nov 15, 2021
Pacman-AI - AI project designed by UC Berkeley. Designed reflex and minimax agents for the game Pacman.

Pacman AI Jussi Doherty CAP 4601 - Introduction to Artificial Intelligence - Fall 2020 Python version 3.0+ Source of this project This repo contains a

Jussi Doherty 1 Jan 03, 2022