Post-Mortem

Debugging AWS Lambda OOM: Why In-Memory File Decryption Blew Up Our Python Runtime

How a file decryption and spreadsheet parsing pipeline in Python 3.12 triggered sudden Out-Of-Memory (OOM) crashes in AWS Lambda, and how leveraging ephemeral /tmp storage fixed our production pipeline.

Debugging OpenTelemetry in AWS Lambda: Fixing Broken Traces Across Worker Threads

How a concurrent compute workload in AWS Lambda caused span explosion and disconnected traces in OpenTelemetry, and how we solved it using distributed context propagation.