Lightstep

Definition

Lightstep is a distributed tracing and observability platform, now known as ServiceNow Cloud Observability, built to help teams understand performance across large, complex microservice architectures.

Overview

Lightstep was founded by engineers with deep roots in tracing systems, including contributions to Dapper-inspired tracing work and the early OpenTracing standard that later merged into OpenTelemetry. Its focus from the start was distributed tracing at scale: following individual requests as they hop across dozens or hundreds of services in a microservices architecture. A key differentiator for Lightstep was its approach to analyzing traces without needing to store or sample every single one in raw form — using statistical techniques to surface meaningful patterns and root causes from large trace volumes cost-effectively. This made it attractive to organizations running very high request volumes where storing full-fidelity traces for everything becomes prohibitively expensive. ServiceNow acquired Lightstep in 2021, and the product has since been rebranded as ServiceNow Cloud Observability, integrated into ServiceNow's broader IT service management and operations portfolio. It continues to emphasize tracing-first observability, competing conceptually with tools like Honeycomb and the tracing capabilities of platforms like Datadog.

Key Features

• Distributed tracing designed for very high request volumes
• Statistical trace analysis to surface root causes without full raw-trace storage
• Service-level objective (SLO) tracking tied to tracing data
• OpenTelemetry compatibility for vendor-neutral instrumentation
• Change intelligence correlating deployments with performance regressions
• Integration into ServiceNow's broader IT service management ecosystem post-acquisition

Use Cases

Frequently Asked Questions

Related in DevOps