AggreGate platform features an integrated RRD storage facility that interoperates with the statistical process control module. The module collects value updates and events, extracts floating-point numbers from them and pushes those numbers to the RRD.
Although RRD is very limited in its capabilities, it has a number of unique advantages:
- Extremely fast insert rate (more than a million samples per second on a single machine)
- Extremely fast access to pre-aggregated long-term statistics (monthly averages for ten thousand devices and ten years will load in under one second)
- Constant disk footprint of the whole database