张小磊

@codeandship

Shenzhen, ChinaJoined May 2026

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BuildInPublic Devbuildinpublicdev.hashnode.dev3 posts

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张张小磊buildinpublicdev.hashnode.dev

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Solving Duplicate Payment Issues in My E-commerce System

1d ago · 3 min read · Last Wednesday at 2 AM, my phone wouldn't stop buzzing. A customer in the group chat sent a string of question marks along with a screenshot of a blank payment page. I rubbed my eyes, logged into the

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张张小磊buildinpublicdev.hashnode.dev

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How Unreleased Redis Connections Caused 2 Hours of API Downtimev

1d ago · 3 min read · During a recent traffic spike, our API experienced severe degradation: response latency jumped from 200ms to over 15 seconds, and the error rate exceeded 40%. Investigation revealed that incoming requ

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张张小磊buildinpublicdev.hashnode.dev

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I Deleted the Production Database, and Then...

1d ago · 3 min read · On a Friday afternoon, I was getting ready to leave work when a colleague messaged in the group: "The test environment database crashed. Can you take a look?" I SSH'd into the server, saw garbled tabl

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张小磊

About

Available for

张小磊's blogs

Recently published

Solving Duplicate Payment Issues in My E-commerce System

How Unreleased Redis Connections Caused 2 Hours of API Downtimev

I Deleted the Production Database, and Then...

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张小磊

About

Available for

张小磊's blogs

Recently published

Solving Duplicate Payment Issues in My E-commerce System

How Unreleased Redis Connections Caused 2 Hours of API Downtimev

I Deleted the Production Database, and Then...