Re: Cassandra and TTL

2010-01-13 Thread August Zajonc
On Wed, Jan 13, 2010 at 2:30 PM, Mark Robson mar...@gmail.com wrote: I also agree: Some mechanism to expire rolling data would be really good if we can incorporate it. Using the existing client interface, deleting old data is very cumbersome. We want to store lots of audit data in Cassandra,

Design Pattern - Tag Cloud / Inverted Index

2009-12-27 Thread August Zajonc
Just getting up to speed with Cassandra and the terminology and concepts. Lots of fun. Apologies for a beginner question. Focusing on how the data will be used is very helpful in coming up with a model. I have a question about a design pattern I expect is relatively common. It's the tag pattern

Re: Design Pattern - Tag Cloud / Inverted Index

2009-12-27 Thread August Zajonc
On Sun, Dec 27, 2009 at 11:38 AM, Mark Robson mar...@gmail.com wrote: 2009/12/27 August Zajonc augu...@augustz.com Looking at the data model a simple solution is two column families, one containing items as the row-key with tags as columns, and a second with tags as the row-key with items