Running the container 

The following command will run YARN container as a Docker container:

bin/Hadoop jar /share/Hadoop/mapreduce/Hadoop-mapreduce-examples-3.0.0.jar \
  teragen \
     -Dmapreduce.map.env="YARN.nodemanager.docker-container-executor.image-name=sequenceiq/Hadoop-docker:2.7.1" \
   -Dyarn.app.mapreduce.am.env="YARN.nodemanager.docker-container-executor.image-name=sequenceiq/Hadoop-docker:2.7.1" \
  1000 \
  output