Debugging Performance Backpressure
How to diagnose resource exhaustion in streams, queues, and hot paths.
Pattern
A producer ignores downstream capacity and converts normal load into memory or metrics pressure.
warningSymptoms
- arrow_rightWorker heap grows until kill
- arrow_rightMetrics series count spikes
- arrow_rightA single tenant starves shared resources
searchWhere to look
- arrow_rightStream write return values
- arrow_rightDrain handling
- arrow_rightLimiter scopes
- arrow_rightTelemetry dimensions
buildCommon fixes
- arrow_rightAwait drain signals
- arrow_rightBound buffers
- arrow_rightScope shared resources
- arrow_rightMeasure peak memory in tests
Practice challenges
No ready practice incident is mapped yet.