convore.json/groups/mapreduce/hadoop/messages.json

[{"user_id": 10890, "stars": [], "topic_id": 8773, "date_created": 1298566691.615335, "message": "discuss the implementation under Apache open source. Background info: http://en.wikipedia.org/wiki/Hadoop", "group_id": 5071, "id": 199114}]