从MapReduce的源码看一下MapReduce的一些具体实现方法。
关于Mapreduce的原理部分可以参考我之前的一篇文章:MapReduce的原理
I will be stronger
作者: baeldung
In this tutorial, we’ll show various ways in which we can generate prime numbers using Java.
在本教程中,我将会使用java给你展示几种不同的素数生成方法。
If you’re looking to check if a number is prime – here’s a quick guide on how to do that.
假如你正需要验证一个数字是否为素数 - 这是一个快速判定素数的指南。
信息来源:阮一峰每周分享
Occasionally I go out to lunch with some of my techie friends and we have a great time geeking together. We talk about projects, current events, and various tech-related issues. Inevitably, the discussion will turn to programming languages. One might lament “I have to modify some Java code. I hate Java. (Oh, sorry, Kyle.)” (It probably doesn’t help that we gave Kyle the nickname “Java-boy” over a decade ago.) Another will gripe about some old monolithic shell code that nobody wants to rewrite.
操作系统:RedHat
内存:32G
Hadoop版本:2.7.6
Hive版本:1.2.2
有关Hadoop的安装,HDFS和YARN的配置可以参考我写的 配置本地Hadoop环境,另外Hive的常用函数可以参考我的另一篇文章 Hive常用函数总结 。