Decision Triggers
Use for slow work
Operations taking more than a few seconds should return a job ID and process async.
Keep quick paths sync
Simple request/response flows do not need queue, worker, and status-tracking overhead.
Spot slow examples
Video transcoding, image processing, PDFs, bulk emails, CSV imports, and exports fit.
Do throughput math
Multiply job volume by per-job processing time before assigning work to web servers.
Split hardware needs
Run GPU, CPU-heavy, or memory-heavy work on worker fleets, not the web tier.
Budget complexity
Queues, workers, job states, retries, and monitoring replace simple request/response.
Request Flow
Core Components
Queue Choice
Worker Runtime
Key Time Numbers
Job Latency Reference
Platform Timeout Constraints
Operational Tuning Values
Pitfalls and Fixes
Purchase Premium to Keep Reading
Unlock this article and so much more with Hello Interview Premium