X-Ray

• Visual analysis of our application
• Good for production debugging
  • find erros, exceptions
  • trouble shoot bottle necks, measure performance (instrumentation), ...
• Compatible with almost all services even with on-premises
• Used Tracing (end-end way to follow a request) to trace error
• Support IAM for authorisation and KMS for encption at rest

Enable Xray

• Import X-Ray SDK
• Install X-Ray daemon or enable X-Ray AWS integration on server
  • daemon work as a low level UDP packet interceptor
  • has config to send traces across all account
    • Allows to have a central account for all application tracing
    • Make sure IAM permissions are correct as the agent will assume role
• Each application must have IAM rights to write data to X-Ray

Concept

• Segments: segment of information in the UI
• Subsegments: if you need more details
• Trace: segments collected together to create end-end trace
• Sampling: to decrease amount of requests sent to X-Ray to reduce cost
• Annotations: Key value pair to index traces use with filters
• Metadata: Key value pairs, not-index cannot be used for searching