macOS安装与运行Hadoop单机模式

1 Download Hadoop2 Install Hadoop3 Verify Install4 Run a programme5 Reference

1 Download Hadoop

下载地址，选择3.2.1 https://downloads.apache.org/hadoop/common/. 保险起见下载完成后在Downloads中双击解压（不知为何先移动再解压会报错）

在home中创建文件夹

> cd ~ > mkdir -p Install/Hadoop

2 Install Hadoop

将Downloads中的文件移动到目标文件夹

> mv ~/Downloads/hadoop-3.2.1 ~/Install/Hadoop

3 Verify Install

> cd Install/Hadoop > cd hadoop-3.2.1 && ls -g

若安装成功，则

-rw-r--r--@ 1 staff 150569 Sep 10 07:35 LICENSE.txt -rw-r--r--@ 1 staff 22125 Sep 10 07:35 NOTICE.txt -rw-r--r--@ 1 staff 1361 Sep 10 07:35 README.txt drwxr-xr-x@ 13 staff 416 Sep 10 09:51 bin drwxr-xr-x@ 3 staff 96 Sep 10 08:58 etc drwxr-xr-x@ 7 staff 224 Sep 10 09:51 include drwxr-xr-x@ 3 staff 96 Sep 10 09:51 lib drwxr-xr-x@ 14 staff 448 Sep 10 09:51 libexec drwxr-xr-x@ 29 staff 928 Sep 10 08:58 sbin

4 Run a programme

> mkdir input > cp etc/hadoop/*.xml input > bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce- examples-3.2.1.jar grep input output 'dfs[a-z.]+' > cat output/*

运行结果：

5 Reference

https://www.exception404.com/post/steps-to-install-hadoop-on-mac-os-x-in-standalone-mode.