bookeezhou / hadoop-docker

hadoop 3.3.1 docker 安装。干净环境便于测试

Run Hadoop Cluster within Docker Containers

• Blog: Run Hadoop Cluster in Docker Update

according above Blog ，update hadoop 3.3.1 version , jdk-8u291-linux-x64.tar.gz version. thanks kiwenlan.

Hadoop Cluster

1. build docker image

download hadoop-3.3.1.tar.gz jdk-8u291-linux-x64.tar.gz file ,
put them into install_tar directory.

chmod +x build-image.sh
./build-image.sh

2. create hadoop network

sudo docker network create --driver=bridge hadoop

3. start container

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

Arbitrary size Hadoop cluster

1. pull docker images and clone github repository

do 1~3 like section A

2. rebuild docker image

sudo ./resize-cluster.sh 5

• specify parameter > 1: 2, 3..
• this script just rebuild hadoop image with different slaves file, which pecifies the name of all slave nodes

3. start container

sudo ./start-container.sh 5

• use the same parameter as the step 2

4. run hadoop cluster

do 5~6 like section A