convore.json/groups/mapreduce/books-and-papers-on-mapreduce/messages.json

[{"user_id": 10890, "stars": [], "topic_id": 11619, "date_created": 1299636451.355114, "message": "http://infolab.stanford.edu/~ullman/mmds/ch2.pdf from \"Mining of Massive Datasets\"", "group_id": 5071, "id": 301022}]