عرض عملي: التعافي من تراكم مستهلك دام ست ساعات

خطوة بخطوة

1. Show lag at six hours after a consumer bug.
2. Fix the bug, then scale consumers up to the partition count.
3. Check the downstream database as the new bottleneck; add batching.
4. Planned mistake: scale consumers beyond partitions and see no gain; fix by increasing parallelism inside the consumer or using more partitions in future design.
5. Track time-to-clear against the estimate and record lessons in the runbook.

Prepares SRB-006-LAB1.