Cloned from launchpad blueprint https://blueprints.launchpad.net/ceilometer/+spec/time-series-data-storage.

Description:

Ceilometer currently supports multiple storage drivers (mongodb, sqlalchemy, hbase) behind a well-defined abstraction.

The purpose of this blueprint is to investigate how well suited the existing nosql stores are to the efficient manipulation of time-series data.

The questions to be decided would include:

 * whether we could optimize/improve our existing schemas in this regard

 * whether we should consider a storage driver based on Cassandra in order to take advantage of it's well-known suitability for TSD

Specification URL (additional information):

None