X-Ray

X-Ray Daemon

The AWS X-Ray daemon is a software application that listens for traffic on UDP port 2000, gathers raw segment data, and relays it to the AWS X-Ray API.
The daemon works in conjunction with the AWS X-Ray SDKs and must be running so that data sent by the SDKs can reach the X-Ray service.
Lambda runs the daemon automatically any time a function is invoked for a sampled request.
On Elastic Beanstalk, use the XRayEnabled configuration option to run the daemon on the instances in your environment.
To run the X-Ray daemon locally, on-premises, or on other AWS services, download it, run it, and then give it permission to upload segment documents to X-Ray.

The X-Ray API provides access to all X-Ray functionality through the AWS SDK, AWS Command Line Interface, or directly over HTTPS.
The X-Ray API Reference documents input parameters for each API action, and the fields and data types that they return.
You can use the AWS SDK to develop programs that use the X-Ray API.
The X-Ray console and X-Ray daemon both use the AWS SDK to communicate with X-Ray.
The AWS SDK for each language has a reference document for classes and methods that map to X-Ray API actions and types.