IBM Support

MustGather: Instana .NET/.NET Core Tracer - AWS Lambda

Troubleshooting


Problem

This guide provides essential steps for collecting data related to Instana .NET/.NET Core Tracer - AWS Lambda. Before contacting IBM® support for assistance, please review the information below to familiarize yourself with the troubleshooting process.

Resolving The Problem

To explore potential solutions, search for issues, access documentation, or visit support forums, head to the IBM® Support page. If you are aware of the affected component, refer to the relevant MustGather details below:
 
MustGather Data Collection Requirements for Instana .NET/.NET Core Tracer - AWS Lambda

Monitored environment details:
 
  • AWS Lambda Environment Information:
    • AWS Region and Account ID
    • Lambda runtime (.NET 8 or later)
    • Lambda function configuration (memory, timeout)

 

Application Details:

  • .NET version (must be .NET 8 or later)
  • Application type (HTTP API, Event-driven, etc.)
  • Handler format (Assembly::Namespace.ClassName::MethodName)
  • Deployment method (Lambda layers or manual package installation)
  • If this is an issue with the OTLP exporter:
    • Instana.OpenTelemetry.Otlp.Exporter package version
    • Instana OTLP Exporter configuration options details
 
Agent configuration:
 
Debug logs & error messages:
 
  • Target application logs
    • CloudWatch logs with full error messages and stack traces
    • Check for TaskCanceledException errors (can be ignored if traces appear in the UI)

 

Additional information to collect:

  • When did the issue start?
  • Steps to reproduce the problem
  • Expected vs. actual behavior in the Instana UI
  • Impact on your application or monitoring
  • Known issues (incorrect ARN, outdated layer version, environment variables, handler format)

Document Location

Worldwide

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Document Information

Modified date:
05 April 2026

UID

ibm17249943

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