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#reliability

General discussions on building and maintaining reliable software systems.

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A Timeout Is Not a Failure: Build Idempotent Tool Calls for AI Agents in TypeScript

A Timeout Is Not a Failure: Build Idempotent Tool Calls for AI Agents in TypeScript

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9 min read
Node.js Background Job Queue Worker: Split Long Jobs Beyond 15-Minute Cron Timeout

Node.js Background Job Queue Worker: Split Long Jobs Beyond 15-Minute Cron Timeout

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5 min read
Azure Availability Sets vs Availability Zones: what protects against what

Azure Availability Sets vs Availability Zones: what protects against what

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6 min read
Staleness is not evenly distributed and it eats your newest rows first

Staleness is not evenly distributed and it eats your newest rows first

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3 min read
Transactional Email Operations: Compliance, Custom Domains, and Bounce Reconciliation

Transactional Email Operations: Compliance, Custom Domains, and Bounce Reconciliation

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7 min read
What goes in an approval request: a short reason or a link to the trace?

What goes in an approval request: a short reason or a link to the trace?

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3 min read
Our users were logged out for two weeks before Redis refused to write anything

Our users were logged out for two weeks before Redis refused to write anything

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2 min read
Published and listed are two different events and we treated them as one

Published and listed are two different events and we treated them as one

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3 min read
GPU Preflight For Cron Agents

GPU Preflight For Cron Agents

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2 min read
Failure Windows in Lioran S3 V1: What the Current Rust Commit Pipeline Guarantees

Failure Windows in Lioran S3 V1: What the Current Rust Commit Pipeline Guarantees

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3 min read
Durability, Crash Safety and Disk Guardrails in Lioran S3

Durability, Crash Safety and Disk Guardrails in Lioran S3

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3 min read
Strict vs Balanced Durability in Lioran S3: What fsync Actually Changes

Strict vs Balanced Durability in Lioran S3: What fsync Actually Changes

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3 min read
A connector we switched off in May kept every change our database made

A connector we switched off in May kept every change our database made

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2 min read
We added a fourth server and made our cluster easier to break

We added a fourth server and made our cluster easier to break

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2 min read
A server sent me Retry-After: 0 and my retry loop lost its brakes

A server sent me Retry-After: 0 and my retry loop lost its brakes

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5 min read
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