AWS X-Ray is a distributed tracing platform that instruments applications and ingests request and response data. It's designed for use in microservices environments.
- Service Maps allow developers to model the structure of the application, allowing for better visualisations of dependencies.
- They're visualisations of the Service Graph X-Ray assembles from the instrumentation data it gathers.
- Errors and exceptions raised during execution are collected and raised as part of segments.
- Segments contain details of the host, client, request, work done, response data and any collected errors.
- Subsegments provide details on smaller units of work within a segment, e.g. database interactions.
- Traces track requests as they flow through the application, across services. The tracing data is correlated using the
- Sampling ensures collected data is representative without collecting everything.
- Tags on trace data allow filtering the data and improve discoverability.
Seamless integrations are provided for AWS services:
An SDK is available for application-level integration:
The SDK provides:
- Interceptors which trace incoming HTTP requests.
- Client handlers which instrument client SDKs for other AWS services.
- An instrumented HTTP client for instrumenting internal and external applications.