Mortar co-founder Jeremy Karn gave this talk on using MongoDB data with Hadoop (and specifically with Apache Pig) at MongoSV.

Jeremy’s presentation covers the steps needed to read JSON from Mongo into Pig, parallel process it on Hadoop with sophisticated functions, and write back to Mongo.

Jeremy was a big part of our contributions to the Mongo Hadoop connector, which we extended it to make it work with Pig. MongoDB creator (and 10gen founder) Dwight Merriman also gave Mortar a nice shout out.