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DevOps & Automation · Intermediate

Jaeger

An open-source CNCF graduated distributed tracing platform for collecting, storing, and visualizing traces.

Definition

Jaeger, originally from Uber, receives spans (natively via OTLP in current versions), stores them in backends such as Cassandra or Elasticsearch, and provides a UI for searching traces and viewing dependency graphs.

Example

Engineers search Jaeger for traces with error=true from the cart service in the last hour.

Exam tip

Jaeger and Zipkin are tracing backends; OpenTelemetry is the instrumentation standard feeding them.

Related terms