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# Python3实战Spark大数据分析及调度
大家好,欢迎大家来到我在[慕课网](https://imooc.com)上的实战课程[《Python3实战Spark大数据分析及调度》](https://coding.imooc.com/class/chapter/249.html)的官方代码仓。在本仓库中将提供课程学习过程中的代码以及笔记,如有错误信息,也欢迎大家以pull request的方式更新上来。
***
## 代码说明
* code:该课程的所有代码
* note:该课程的所有笔记
* OOTB环境:请关注课程页面`下载`的`大型资料下载`
***
## 课程说明
本门课程将按照如下模块进行讲解
* 实战环境搭建
* Spark Core核心RDD:RDD是什么、RDD五大特性、RDD特性在源码中的体现、图解RDD、SparkContext&SparkConf详解、RDD的2种创建方式、使用IDE开发pyspark应用程序、提交pyspark作业到服务器上运行
* Spark Core RDD编程:map & filter & flatMap & groupByKey & reduceByKey & sortByKey & union & distinct & join & action算子详解、词频统计 & TopN & 平均数统计案例编程实现
* Spark运行模式:local、standalone、yarn模式详解
* Spark Core进阶:Spark中的核心术语、运行架构、并对比Spark和MapReduce的概念区分、存储策略及选择方式、宽窄依赖及Shuffle
* Spark Core调优:从Spark作业性能指标、序列化、内存管理、广播变量及数据本地化这几个方面来介绍Spark作业的调优
* Spark SQL:Spark SQL的架构、DataFrame&Dataset、以及如何使用Python API来对DataFrame进行编程
* Spark Streaming:Spark Streaming的核心概念、执行原理、以及如何Python API来对Spark Streaming进行编程
* Azkaban基础篇:Azkaban的特性、架构、运行模式、源码编译及部署、快速入门
* Azkaban实战篇:使用Azkaban来完成HDFS、MapReduce、Hive作业的调度、定时作业调度以及邮件告警
* Azkaban进阶篇:Azkaban在生产上的部署、权限管理、Ajax API、Plugin、以及短信和调度框架的二次开发
* 项目实战:构建大数据平台的技术选型、集群升级资源评估,并使用Spark对气象数据进行分析,讲分析结果写入ES,并通过Kibana进行统计结果的可视化展示
***
## 思考题
Q1: 假设一个日志文件如下所示,字段之间分隔符是`,`
```
1,zhangsan,30
2,lisi,32
3,wangwu,abc
```
第一列id(int),第二列name(name),第三列age(int),但是第三行的第三列值为abc,这是一条不符合要求的数据。
请使用Spark解析日志,使用计数器完成该日志的总行数以及符合条件的记录数统计。
***
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