docker搭建hadoop 3节点集群：镜像使用现成的，不用另做

3 Nodes Hadoop Cluster

1. pull docker image

sudo docker pull kiwenlau/hadoop:1.0

2. clone github repository

git clone https://github.com/kiwenlau/hadoop-cluster-docker

3. create hadoop network

sudo docker network create --driver=bridge hadoop

4. start container

cd hadoop-cluster-docker
sudo ./start-container.sh

output:

start hadoop-master container...
start hadoop-slave1 container...
start hadoop-slave2 container...
root@hadoop-master:~# 

• start 3 containers with 1 master and 2 slaves
• you will get into the /root directory of hadoop-master container

5. start hadoop

./start-hadoop.sh

6. run wordcount

./run-wordcount.sh

output

input file1.txt:
Hello Hadoop

input file2.txt:
Hello Docker

wordcount output:
Docker    1
Hadoop    1
Hello    2

参考链接：https://github.com/kiwenlau/hadoop-cluster-docker