Meshtastic is an open-source, off-grid mesh network of small LoRa radio nodes that relay messages without internet or cellular service. Alen Zubic built RelayMesh, a cloud platform for managing these networks.

As the networks grew, a time-series store could track what each node reported, but not how the nodes connect, such as which nodes carry most of the traffic or where a new relay would help. So RelayMesh gives two databases two jobs: ClickHouse keeps the telemetry, and Memgraph answers topology questions with short-lived, in-memory graphs.

This session will cover:

Moving data from Meshtastic nodes over MQTT and Kafka into ClickHouse.

Building a graph in Memgraph from a chosen time window when a topology question comes in.

Using it for topology recommendations, then dropping it once it goes idle.

Alen is an infrastructure engineer based in Oslo who likes fixing things, building reliable systems and playing with networks. He spends his spare time exploring distributed systems, infrastructure tooling, mesh networking and travel technology

Ephemeral Graphs on Demand: Meshtastic Mesh Topology With ClickHouse and Memgraph