Published onOctober 30, 2026 (3d ago)One Elasticsearch Node at 96.5% CPU, and Three Loads I Wasn't CountingElasticsearchKubernetesPerformanceDistributed-SystemsPostmortemA 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 onOctober 23, 2026 (10d ago)My Canaries Kept Passing and My Rollouts Kept FailingWeb-ScrapingWeb-CrawlerGoKubernetesPostmortemA 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...