1
The One Billion Row Challenge
Update Jan 4: Wow, this thing really took off! 1BRC is discussed at a couple of places on the internet, including Hacker News, lobste.rs, and Reddit. For folks to show-case non-Java solutions, there …
Gunnar Morling
- Popular posts
- 12
- Total points
- 2,214
- HN comments
- 1,298
- Rank
- #724 personal
Visit morling.dev → RSS feedOn Hacker News Feb 2021 – Feb 2026
Software Engineering 11Databases & Data 5Systems & Performance 3Tools & Productivity 1Networking & Internet 1Infrastructure & DevOps 1
2
Finding Java Thread Leaks with JDK Flight Recorder and a Bit of SQL
The other day at work, we had a situation where we suspected a thread leak in one particular service, i.e. code which continuously starts new threads, without taking care of ever stopping them again. …
3
Building a Durable Execution Engine with SQLite
Lately, there has been a lot of excitement around Durable Execution (DE) engines. The basic idea of DE is to take (potentially long-running) multi-step workflows, such as processing a purchase order …
4
Hardwood: A New Parser for Apache Parquet
Today, it’s my great pleasure to announce the first public release of Hardwood, a new parser for the Apache Parquet file format, optimized for minimal dependencies and great performance. Hardwood is …
5
Building agents using streaming SQL queries
Table of Contents Agents Need to Interact With LLMs Agents Should Be Event-Driven Agents Need Context Agents Require Memory When SQL Is Not Enough Parting Thoughts AI Agents have improved in leaps …