bvandeusenandClaude Opus 5.5
98a0ced5eb
#5755 "Traefik latency was a percentile of every response since Traefik started, over unsummed label sets". _percentile_ms read the duration histogram as it stood, which counts from Traefik's start, so p50/p95/p99 were lifetime figures that barely moved. It also walked every code/method label set's buckets as one unsummed list, so equal counts from two sets returned an edge exactly: nextcloud's flat 100.0 ms p95. service_buckets() now takes each bucket's rise since the previous scrape, summed per le over every label set. A scrape with no responses, and the first scrape, record no latency: traefik_007_latency_nullable lets the columns be NULL, the batch skips the figure, and the page shows "—". Found while preparing #5741 "Traefik routers are graded against their own normal", which grades p95 against a learned normal. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>