Mac configuration Hadoop most detailed process

I. Preparatory work:

1. JDK1.7 version and above (it seems that Hadoop only supports more than 1.6 versions, not sure, for the sake of 1.7, I use 1.8)

2.2.7.3 version of Hadoop https://archive.apache.org/dist/hadoop/common/hadoop-2.7.3/download the one with more than 200 m

Two. Configure SSH password-free login

1. Turn on the remote connection for your Mac

System Preferences--shared--Telnet

2. If you have read, and have followed the configuration

, you can skip this step, otherwise:

Open terminal (terminal), enter and always return, ask you yes/no remember to lose yes

ssh-keyagent-t

Jump to ~/.ssh directory after completion

CD ~/. SSH

View the files in the directory

Ls

Make sure you have these two key files in your directory

3. Enter the following code to password-free login

Cat ~/. ssh/id_rsa.pub > ~/. ssh/authorized_keys

4. Verify, enter the following code

ssh localhost

If as shown, direct prompt last login + time is not lost password directly logged in

Mac configuration Hadoop most detailed process