AWS Serverless Distributed Tracing With X-Rays
AWS X-Ray provides distributed tracing for every Lambda function or API stage in API Gateway.
A Trace collects all request segments.
A segment is a part of a request.
It also works with Amazon SNS to track messages.
Distributed Tracing with AWS X-Ray Video
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Distributed tracing with AWS X-Rays is a best practice for event-driven, separated applications.
Tracing headers may be retrieved and propagated using the trace ID.
The SDK provides data about incoming and outgoing requests to the X-Ray in batches to X-Ray.
The X-Ray receives data from services as segments and organizes them into traces.
In each service integration point, it builds a graph including successful and failed calls.
It automatically indexes key-value pairs with text, integer, or Boolean values.
Some services generate subsegments automatically.
Subsegments can let you see application performance at a finer level.
Subsegments can also be used to debug or annotate code blocks.
Related reads:AWS X-Ray Developer Guide
Tracing Lambda-Based Applications with AWS X-Ray
Viewing the Trace Map