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This is a place where I share technical and fun stuff.

Featured

• Airflow Best Practices

  Updated: 12 Oct, 2025

  Airflow pitfalls, or essentially Python pitfalls

• An Interesting Experience Debugging Go API Performance

  5 Apr, 2025

  Unexpected and humorous results from investigation of high CPU usage of Go API.

Recent Posts

• Practical CKAD Exam Tips

  7 Jun, 2026

  Learn how to prepare for the CKAD exams. Gain confidence and pass the exams with ease.

• How To Be A Bad Engineer

  29 May, 2026

  Use runtime configuration obfuscation to increase system complexity. So that no one but you can understand or control the system.

• Got Bitten By Java Logback and Helm Charts

  30 Apr, 2026

  Unexpected behavior of Helm Chart, poor logging design and communication cost me days to deploy the application.

• Git Commands

  Updated: 24 Apr, 2026

  Useful git commands in my daily work.

• Bloodborne - A Masterpiece(zh)

  12 Apr, 2026

  Contains spoilers.

• Server Sent Events

  29 Mar, 2026

  Server Sent Events Go and TypeScript implementation. An alternative to WebSockets.