At first, we thought X-Ray was the silver bullet for distributed tracing, but the costs added up fast. Then we discovered OpenTelemetry and CloudWatch could do the same job for a fraction of the price. Here's how we made the switch and what we learned along the way.

Introduction to X-Ray and its limitations

The conventional wisdom says X-Ray is the go-to tool for monitoring and debugging microservices, but what if there's a more cost-effective way to achieve the same level of visibility with OpenTelemetry and CloudWatch?

The X-Ray SDK adds 50-100ms to cold starts in Lambda if not configured correctly, which can be a significant performance hit.

import { Command } from ' @aws-sdk/client-xray ' ; import { PutTraceSegmentsCommand } from ' @aws-sdk/client-xray ' ;

// Creating a new X-Ray client const xrayClient = new Command ({ region : ' us-east-1 ' , credentials : { accessKeyId : ' YOUR_ACCESS_KEY ' , secretAccessKey : ' YOUR_SECRET_KEY ' , }, });

// Putting a new trace segment const…