Tag: iot
All the articles with the tag "iot".
The Device Went Quiet. Quiet Is Not a Reading.
A thousand devices reporting over MQTT taught me that absent telemetry is ambiguous, and that the ambiguity gets worse the moment the device is allowed to move.
The Devices Were Fine. The Primary Key Was the Problem.
Bridging 1,000+ MQTT devices into Pub/Sub, Spanner and BigQuery, and why a monotonic primary key quietly caps your write throughput no matter how many nodes you add.
We Deleted Old Readings Every Night. That Was the Expensive Part.
A telemetry table that only grows forces three decisions: how you remove data, how many resolutions you keep, and what happens when a device reconnects and replays six hours of buffer.