The raw data Matomo collects is currently preserved for 14 days. This keeps the size of the database low, but makes it hard to use the user segmentation feature, Increasing the period of time for which Matomo keeps the raw data probably has a huge impact on the database. To find a middle ground we need to know big the impact would be. Ideally, the raw data can be kept for three months.
- We have an estimation about the impact on the needed disk space.
- Keeping the raw data for a longer period of time might also result in reduced performance during report creation.
- Increasing the period of time now and compare database sizes help us finding a metric.