Re: Cassandra and frequent updates

2014-09-30 Thread DuyHai Doan
Hello Matthias According to your description, an event-sourcing design would be a good fit for your scenario. In Cassandra, instead of "updating" existing data, why don't you just store new values (it can be delta only, not a problem) with a monotonic increasing date ? This way, in your analy

Cassandra and frequent updates

2014-09-30 Thread Matthias Hübner
Hi all, i'm unsure if cassandra is appropriate for my use case: Maintain a query model. Collect data from several sources (asynchronously) and merge it into aggregates (rows) in one cassandra table. The data is mostly updated, except from initial load or adding new data ranges. Some source deliv