Every retry needs a budget, otherwise it is just a slower outage. The rollback plan should exist before the rollout plan is approved. Feature flags are debt with an expiration date you must actually enforce.
Trade-offs
The best architecture diagram is the one the new hire can redraw from memory. Feature flags are debt with an expiration date you must actually enforce. Every retry needs a budget, otherwise it is just a slower outage. We measured first, and the bottleneck was not where anyone expected.
Most production incidents start as a small assumption nobody wrote down. Tests are documentation that fails loudly when it goes stale.
Lessons
We measured first, and the bottleneck was not where anyone expected. The fastest query is the one you never send, but the second fastest has a good index. Security is mostly about saying no to defaults that were convenient in 2010. Caches are easy to add and surprisingly hard to remove.
Naming things well saved us more time than any framework migration. The best architecture diagram is the one the new hire can redraw from memory.
Going further
Latency percentiles tell a story that averages politely hide. Caches are easy to add and surprisingly hard to remove. We measured first, and the bottleneck was not where anyone expected. The best architecture diagram is the one the new hire can redraw from memory.
Naming things well saved us more time than any framework migration. Tests are documentation that fails loudly when it goes stale.
Our on-call rotation improved the day we deleted half of the alerts. Naming things well saved us more time than any framework migration.
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