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Harry Phung

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Location Vietnam Joined Joined on  Personal website https://quangpv.top
System design: Bloom Filters & Use Cases

System design: Bloom Filters & Use Cases

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11 min read

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Deep Dive: Why SKIP LOCKED Requires READ COMMITTED in MySQL and PostgreSQL

Deep Dive: Why SKIP LOCKED Requires READ COMMITTED in MySQL and PostgreSQL

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5 min read
Common Concurrency Interview Question: Handling High-Traffic Purchases and Key Approaches

Common Concurrency Interview Question: Handling High-Traffic Purchases and Key Approaches

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5 min read
Realtime Config Updates for Multiple Instances with Redis Pub/Sub

Realtime Config Updates for Multiple Instances with Redis Pub/Sub

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5 min read
The Auto-Increment Trap: Scaling Systems and the Distributed ID Problem

The Auto-Increment Trap: Scaling Systems and the Distributed ID Problem

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3 min read
Big O: Don't talk about speed!

Big O: Don't talk about speed!

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3 min read
Distributed Locking & The 'Old Overwrites New' Problem (Fencing Tokens)

Distributed Locking & The 'Old Overwrites New' Problem (Fencing Tokens)

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3 min read
How CPU Cores, Processes, and Threads Actually Work

How CPU Cores, Processes, and Threads Actually Work

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6 min read
How the Two Most Popular Open-Source Databases (MySQL & PostgreSQL) Handle INSERT, UPDATE, DELETE

How the Two Most Popular Open-Source Databases (MySQL & PostgreSQL) Handle INSERT, UPDATE, DELETE

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6 min read
Understanding File Descriptors: The Silent Resource That Can Crash Your Linux Server

Understanding File Descriptors: The Silent Resource That Can Crash Your Linux Server

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3 min read
Efficient Transaction Management in NestJS with AsyncLocalStorage

Efficient Transaction Management in NestJS with AsyncLocalStorage

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4 min read
PostgreSQL Safety Lock: Double-Confirm Protection

PostgreSQL Safety Lock: Double-Confirm Protection

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2 min read
Different approaches to building a robust audit log system

Different approaches to building a robust audit log system

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4 min read
How a database handles 10GB of Data with 2GB of RAM

How a database handles 10GB of Data with 2GB of RAM

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4 min read
SSO Auth Proxy: Simplifying the Keycloak Integration Maze

SSO Auth Proxy: Simplifying the Keycloak Integration Maze

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3 min read
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