homeblogtags
  • Published on
    October 30, 2026 (3d ago)

    One Elasticsearch Node at 96.5% CPU, and Three Loads I Wasn't Counting

    ElasticsearchKubernetesPerformanceDistributed-SystemsPostmortem
    A single Elasticsearch node sat at 96.5% mean CPU for a day. The biggest loads weren't the collectors I kept tuning: a pile of detached back...
  • Published on
    October 23, 2026 (10d ago)

    My Canaries Kept Passing and My Rollouts Kept Failing

    Web-ScrapingWeb-CrawlerGoKubernetesPostmortem
    A worker rollout passed an 80-minute production canary at 72.5-75.5% yield, then its standing pods tripped their circuit breakers at 9.5%. T...
© 2026 Built with 💖 by Tony Wang • With TypeScript, Next.js, Tailwind • Inspired by Leerob
Support me • Contact me
My projects: Crawlora • Namefy • BizHQ