Performance will be the same. There's no performance benefit to using multiple keyspaces.
On Thu Nov 13 2014 at 8:42:40 AM Li, George <guangxing...@pearson.com> wrote: > Hi, > we use Cassandra to store some association type of data. For example, > store user to course (course registrations) association and user to school > (school enrollment) association data. The schema for these two types of > associations are the same. So there are two options to store the data: > 1. Put user to course association data into one keyspace, and user to > school association data into another keyspace. > 2. Put both of them into the same keyspace. > In the long run, such data will grow to be very large. With that in mind, > is it better to use the first approach (having multiple keyspaces) for > better performance? > Thanks. > > George >
