Dockerfiles/hadoop/2.8.1

based on alpine

Create a hadoop cluster in swarm mode

--hostname needs docker 1.13 or higher

docker service create \
--name hadoop-master \
--network swarm-net \
--hostname hadoop-master \
--replicas 1 \
--endpoint-mode dnsrr \
newnius/hadoop

docker service create \
--name hadoop-slave1 \
--network swarm-net \
--hostname hadoop-slave1 \
--replicas 1 \
--endpoint-mode dnsrr \
newnius/hadoop

docker service create \
--name hadoop-slave2 \
--network swarm-net \
--hostname hadoop-slave2 \
--replicas 1 \
--endpoint-mode dnsrr \
newnius/hadoop

docker service create \
--name hadoop-slave3 \
--network swarm-net \
--hostname hadoop-slave3 \
--replicas 1 \
--endpoint-mode dnsrr \
newnius/hadoop

Init && Test

In the first deploy, format dfs first

stop cluster (in master)

sbin/stop-yarn.sh sbin/stop-dfs.sh

remove previous data (in all nodes)

clear all data in /tmp in all nodes

format hdfs (in master)

bin/hadoop namenode -format

start cluster (in master)

sbin/start-dfs.sh sbin/start-yarn.sh

Run a test job

bin/hadoop jar share/hadoop/mapreduce/hadoop-mapreduce-examples-2.7.4.jar grep input output 'dfs[a-z.]+'

Note: there is no such dir default, you can add data by

bin/hadoop dfs -mkdir -p /user/root/input

and

bin/hadoop dfs -put etc/hadoop/* /user/root/input

monitor cluster in browser

YARN: hadoop-master:8088

HDFS: hadoop-master:50070

Proxy needed: newnius/docker-proxy