Running a mapreduce job in Julia

I have used Docker Hub site for installing and using hadoop. Everything got installed successfully. Using the jps command I could see the working nodes

root@c584ec74aae3:/# jps
986 NodeManager
791 ResourceManager
396 DataNode
602 SecondaryNameNode
1528 Jps
240 NameNode
root@c584ec74aae3:/#

Can someone say/post how to do map reduce in julia as explained in Michael knolls website.
Thanx