cascalog

A couple of other interesting applications of Prolog I haven't seen mentioned yet: Cascalog, Prolog-inspired data processing and querying library for Clojure: https://github.com/nathanmarz/cascalog Marelle, test-driven devops in SWI-Prolog: https://github.com/larsyencken/marelle

(I'm the author of Storm) Your criticism is totally fair. People have been curious about Storm so we wanted to provide a little bit of information about it. We'll have demos soon, and of course it will be open sourced within a few months. If you're curious about our credibility, I think our other open source projects speak to the quality of software we produce: https://github.com/nathanmarz/cascalog https://github.com/nathanmarz/elephantdb

Backtype have there own language for quering. https://github.com/nathanmarz/cascalog

I wrote a library for Clojure called Cascalog. It's a variant of Datalog that executes using Hadoop. It's not Prolog, but you may find it interesting. https://github.com/nathanmarz/cascalog

Great talk indeed. Note that most (all?) the material covered in the talk is available from the tutorials referenced on the README of the project on github: http://github.com/nathanmarz/cascalog And the demo project: http://github.com/nathanmarz/cascalog-demo

We don't use Pig, we use a Clojure-based query language for Hadoop that we wrote called Cascalog: http://github.com/nathanmarz/cascalog