We wrote the migration twice: once to learn, once to ship. Feature flags are debt with an expiration date you must actually enforce. Small pull requests get real reviews, large ones get approvals.
Lessons
We measured first, and the bottleneck was not where anyone expected. Tests are documentation that fails loudly when it goes stale. The rollback plan should exist before the rollout plan is approved.
Small pull requests get real reviews, large ones get approvals. We wrote the migration twice: once to learn, once to ship.
Details
If the error message does not say what to do next, it is half an error message. Logs answer questions you knew to ask; traces answer the ones you did not. Naming things well saved us more time than any framework migration.
The rollback plan should exist before the rollout plan is approved. The best architecture diagram is the one the new hire can redraw from memory.
Going further
The best architecture diagram is the one the new hire can redraw from memory. Small pull requests get real reviews, large ones get approvals. Our on-call rotation improved the day we deleted half of the alerts. Naming things well saved us more time than any framework migration.
Naming things well saved us more time than any framework migration.
A boring deploy pipeline is a feature, not a lack of ambition. Every retry needs a budget, otherwise it is just a slower outage.
A boring deploy pipeline is a feature, not a lack of ambition. The fastest query is the one you never send, but the second fastest has a good index.
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