Thanos remote write push architecture with edge clusters

Thanos Remote Write: Push-Based Metrics for Edge and Multi-Cluster

In my previous post on Prometheus and Thanos, I covered the sidecar architecture — Thanos Sidecar runs alongside Prometheus, uploads TSDB blocks to object storage, and exposes data to the Querier. It works beautifully for clusters with stable connectivity to your central infrastructure. But what happens when your clusters are at the edge? When they might lose connectivity for hours or days? When you’re running dozens or hundreds of small clusters and don’t want sidecar complexity on each one? ...

March 27, 2026 · 8 min read · Tom Meurs