Glossary

Cache

The local SQLite database of positions.

Ingest

sync, refresh tracker names, then mirror: what a timer runs.

Mirror

The step that sends cached positions to InfluxDB.

Mirror position

The highest id acknowledged by one InfluxDB target, stored per target in mirror_state.

Offset

The id after which the next sync page starts; exclusive.

Position

Fix

One reported location row of a tracker, with a server id and a fix_at time.

Requirement

A sphinx-needs object with a REQ_ id, traced to its verifying tests.

Tracker

A GPS device on the trackiwi account, identified by an integer id.