M3 vs. Dash0

M3 emerges as the premier choice for Cloud Native organizations looking to optimize their Prometheus-based monitoring systems. As a Prometheus Remote Storage solution, M3 offers full compatibility with PromQL, enabling effortless integration into existing setups. Originally developed by Uber, M3 was intended to provide detailed visibility into the company's operations, microservices, and infrastructure. Its impressive horizontal scaling ability allows M3 to serve as a centralized storage solution for a variety of monitoring applications. The system safeguards data integrity by maintaining three replicas and utilizes quorum reads and writes to ensure consistency. M3 has proven its reliability in production scenarios, successfully processing over one billion data points per second and enabling more than two billion data point reads within the same period. Furthermore, it is open-sourced under the Apache 2 license and benefits from a dynamic and dedicated community that fosters its continuous development and enhancement. This makes M3 not only a powerful tool but also a collaborative project that thrives on community input and innovation, ensuring it remains at the forefront of monitoring solutions.

Engineering teams that adopt OpenTelemetry often hit the same wall: instrumentation is standardized, but the backend receiving it is not. Dash0 was built to close that gap. Every signal, whether a trace, a log record, a metric, or the resource emitting it, is stored against OpenTelemetry semantic conventions and correlated automatically. A request that ran long can be examined next to the log lines it produced and the pod it ran on, with no manual joins and no hopping between products. Ingestion happens through a standard OTLP endpoint. Nothing proprietary gets deployed, and existing instrumentation keeps working untouched. Because the wire format is open, data can be redirected to a different destination later without changes to application code. Prometheus users are treated as first-class. Full PromQL is supported, existing recording and alerting rules carry over, and Grafana dashboard definitions import directly. Cluster-level collection is handled by a dedicated Kubernetes operator covering workloads, nodes, and control plane components. Visualization runs on Perses, with dashboard, check, and alert definitions expressed declaratively and kept under version control. Investigations start broad and get narrow: heatmaps expose the shape of a latency distribution, then filters on high-cardinality attributes isolate the affected requests. Machine learning is applied to telemetry during processing rather than surfaced as a chatbot. Log AI assigns severity to records that arrive without it, discovers recurring patterns, and clusters similar entries, turning noisy third-party output into something queryable. For failing requests, the SIFT methodology structures the path from symptom to root cause. Consumption stays transparent throughout. Teams can identify which services, attributes, and log volumes are responsible for their bill and reduce them at the source, before the invoice arrives.