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#reliability

General discussions on building and maintaining reliable software systems.

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A valid payment webhook can still be dangerous to process twice

A valid payment webhook can still be dangerous to process twice

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4 min read
The cold start we had never practised

The cold start we had never practised

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2 min read
Production failures: the things that page you · 1. The three in the morning page

Production failures: the things that page you · 1. The three in the morning page

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9 min read
A backend has to fail twice, and one failure is not an outage

A backend has to fail twice, and one failure is not an outage

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3 min read
The ten minute outage that took six hours to finish

The ten minute outage that took six hours to finish

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2 min read
How I stopped fearing the 3 AM pager by forcing idempotency everywhere

How I stopped fearing the 3 AM pager by forcing idempotency everywhere

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5 min read
The liveness probe that restarted every pod during a database slowdown

The liveness probe that restarted every pod during a database slowdown

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2 min read
The Cleanup Job Did Exactly What We Told It To

The Cleanup Job Did Exactly What We Told It To

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2 min read
The Integration That Assumed the Other System Would Always Answer

The Integration That Assumed the Other System Would Always Answer

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2 min read
The load test that passed because it was too polite

The load test that passed because it was too polite

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2 min read
Multi-provider LLM fallback: staying up when one API goes down

Multi-provider LLM fallback: staying up when one API goes down

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3 min read
GPU Preflight For Cron Agents

GPU Preflight For Cron Agents

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2 min read
When memory returns a plausible answer but violates its boundaries

When memory returns a plausible answer but violates its boundaries

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3 min read
Kill a workflow between the effect and its acknowledgement

Kill a workflow between the effect and its acknowledgement

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4 min read
Systems Engineering for High-Magnitude Seismic Events

Systems Engineering for High-Magnitude Seismic Events

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5 min read
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