Posts tagged: reliability
3 posts
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The Rule Is Not the Invariant
Blanket sync rules are a stand-in for a narrower dependency invariant. Know the invariant and you know exactly when the rule is safe to break.
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The Failure Mode You Traded For
Automating a chore doesn't remove its failure mode, it swaps a loud recoverable one for a silent one that compounds until someone finds it.
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Guard the Side Effect, Not the Door
An idempotency key on the endpoint guards the entrance. The thing that fires twice is three layers down, and it brought its own retry.