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Sam Lightfoot

Personal blog · lightfoot.dev · on HN as samlightfootsystemsdataprogramming

Sam Lightfoot's personal blog at lightfoot.dev covers systems, data and programming. Since 2025, 4 different Hacker News readers have linked it 6 times, most often “Why Aren't You Idempotent?”. It is still writing: the last post was on 2026-05-05, and you can follow it by feed.

Visit the blog
6mentions?
4HN people?
2025–2026first – last linked?
Links on Hacker News per year · peak 4 in 2025

Software engineer with an interest in distributed systems, databases and performance.

The author on HN?

samlightfoot · 9 karma · member since 2025

https://lightfoot.dev/

From their public HN profile, which links to this site.

Most-linked posts?

  1. Why Aren't You Idempotent?
    3 people · 4 mentions · first linked 2025-01-19
  2. Direct I/O for Cassandra Compaction: Cutting p99 Read Latency by 5x
    2 people · 2 mentions · first linked 2026-05-05

What Hacker News says?

  1. thunderbong · 2025-01-31

    Submitted Why Aren't You Idempotent? as a story · 8 points

    HN discussion
  2. thunderbong · 2025-02-03

    Submitted Why Aren't You Idempotent? as a story · 3 points

    HN discussion
  3. samlightfoot · 2025-01-19

    Submitted Why Aren't You Idempotent? as a story · 3 points

    HN discussion
  4. mifydev · 2025-01-30

    Submitted Why Aren't You Idempotent? as a story · 2 points

    HN discussion
  5. tanelpoder · 2026-06-25

    Submitted Direct I/O for Cassandra Compaction: Cutting p99 Read Latency by 5x as a story · 1 points

    HN discussion
  6. samlightfoot · 2026-05-05

    Submitted Direct I/O for Cassandra Compaction: Cutting p99 Read Latency by 5x as a story · 1 points

    HN discussion

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