X-Ray traces applications and helps to identify potential problems or optimizations in the applications. It provides a visualization of your application’s underlying components.
Features
The X-Ray Service Map provides an end-to-end view of requests as they travel through your application. It allows you to troubleshoot the root cause of connection/performance issues and errors.
- Segments
- data about the work done by application (request, response, issues …)
- Subsegments
- a more granular view of data inside of segments
- Service Graph
- a JSON document of how the application’s services and resources interact (visualized)
- Traces
- At first, HTTP trace ID header -> and propagates downstream to track through the system
X-Ray can track application errors
- Errors (Client error – 400)
- Fault (Server error – 500)
- Throttle (429 Too many requests)
X-Ray Architecture
- The X-Ray agent must be installed on your EC2 instance.
- Configure your applications using the X-Ray SDK
- The X-Ray SDK gathers information from request and response headers, the code in your application, and metadata about the AWS resources on which it runs, and sends this trace data to X-Ray. e.g. incoming HTTP requests, error codes, latency data.
X-Ray Daemon
X-Ray Daemon is an AWS application that
- listens on UDO port 2000
- collects raw segment data
- sends it to the AWS X-Ray API
Integration
X-Ray integrates with AWS Services or custom applications.
- AWS Services
- EC2, Lambda, Elastic Beanstalk, SNS, SQS, DynamoDB, Elastic Load Balancer, Elastic Container Service, and API Gateway.
- Custom Application
- applications written in .NET, Java, Node.js, Go, Ruby, or Python.
- The X-Ray SDK automatically captures metadata for API calls made to AWS services using the AWS SDK.
Scriptorium 