[MAHOUT-770] Add CassandraDataModel

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.5
• Fix Version/s: 0.6
• Component/s: Collaborative Filtering
• Labels: cassandra collaborative-filtering datamodel hector recommender thrift
• Assignee: Sean R. Owen
• Reporter: Sean R. Owen
• Due: 29/Jul/11
• Created: 24/Jul/11 20:47
• Updated: 11/Sep/12 13:42
• Resolved: 25/Jul/11 13:41

Description

In the spirit of MongoDBDataModel I'd like to add a CassandraDataModel as a backing store for non-distributed recommenders.
It takes a somewhat different approach, heavily reliant on in-memory caching, as Cassandra is a different beast.
Patch is attached. This goes in integration, not core. It uses Hector, not the raw Thrift API.