Caches are easy to add and surprisingly hard to remove. Tests are documentation that fails loudly when it goes stale. A boring deploy pipeline is a feature, not a lack of ambition.
Trade-offs
Naming things well saved us more time than any framework migration. Logs answer questions you knew to ask; traces answer the ones you did not. We measured first, and the bottleneck was not where anyone expected.
Every retry needs a budget, otherwise it is just a slower outage. Naming things well saved us more time than any framework migration.
Context
The fastest query is the one you never send, but the second fastest has a good index. A boring deploy pipeline is a feature, not a lack of ambition. Most production incidents start as a small assumption nobody wrote down. Latency percentiles tell a story that averages politely hide.
- Alert on symptoms, not causes
- Write the failure mode down before writing code
- Keep migrations reversible
- Pin versions, update on purpose
Latency percentiles tell a story that averages politely hide. We measured first, and the bottleneck was not where anyone expected.
What didn’t
The rollback plan should exist before the rollout plan is approved. Small pull requests get real reviews, large ones get approvals. Caches are easy to add and surprisingly hard to remove. A boring deploy pipeline is a feature, not a lack of ambition.
Logs answer questions you knew to ask; traces answer the ones you did not. Caches are easy to add and surprisingly hard to remove.
Feature flags are debt with an expiration date you must actually enforce. A boring deploy pipeline is a feature, not a lack of ambition.
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