Install docker, pull image and run it binding /home directory.
zypper install docker
systemctl start docker
docker -v
docker pull sequenceiq/hadoop-docker:2.7.1
docker run -v /home:/home -it sequenceiq/hadoop-docker:2.7.1 /etc/bootstrap.sh -bash
Compile Java class
cd /home/wordcount
export JAVA_HOME=/usr/java/default
export PATH=${JAVA_HOME}/bin:${PATH}
export HADOOP_CLASSPATH=${JAVA_HOME}/lib/tools.jar
$HADOOP_PREFIX/bin/hadoop com.sun.tools.javac.Main WordCount.java
jar cf WordCount.jar WordCount*.class
Copy file to HDFS.
bin/hdfs dfs -mkdir wordcount
bin/hdfs dfs -mkdir wordcount/input
bin/hdfs dfs -put /home/wordcount/input/book.txt wordcount/input/book.txt
bin/hdfs dfs -cat wordcount/input/book.txt
bin/hdfs dfs -mkdir wordcount/java-input
Move into directory with Hadoop binaries.
cd $HADOOP_PREFIX
Start Java Hadoop job.
bin/hadoop jar /home/wordcount/WordCount.jar WordCount wordcount/input wordcount/java-output
Check Java Hadoop job output.
bin/hdfs dfs -ls wordcount/java-output
bin/hdfs dfs -cat wordcount/java-output/part-r-00000
Start Python Hadoop job.
bin/hadoop jar share/hadoop/tools/lib/hadoop-streaming-2.7.1.jar -mapper /home/wordcount/mapper.py -reducer /home/wordcount/reducer.py -input wordcount/input/book.txt -output wordcount/python-output
Check Python Hadoop job output.
bin/hdfs dfs -ls wordcount/python-output
bin/hdfs dfs -cat wordcount/python-output/part-00000
Check configuration files.
cat etc/hadoop/core-site.xml
cat etc/hadoop/hdfs-site.xml
cat etc/hadoop/slaves