Modern telemetry systems require both highthroughput time-series ingestion and flexible structured querycapabilities. This paper presents a comprehensive evaluation ofa dual-store telemetry backbone combining QuestDB for timeseries workloads and CrateDB for structured analytics. Throughsystematic benchmarking of ingress throughput, query latency,and retention costs, we demonstrate that QuestDB achieves40% higher ingestion rates (45K vs 32K records/sec) with 33%lower … Continue reading QuestDB + CrateDB as Dual-Store Telemetry Backbone: Performance Benchmarking and Cost Analysis