https://rollupdb.com/tags/monitoring/ Recent content in Monitoring on RollupDB.com Hugo en-us Sun, 18 Oct 2026 00:00:00 +0000 https://rollupdb.com/tracking-api-latency-and-errors-per-endpoint-for-a-year-with-rollupdb/ Sun, 18 Oct 2026 00:00:00 +0000 https://rollupdb.com/tracking-api-latency-and-errors-per-endpoint-for-a-year-with-rollupdb/ <p>A small online shop runs one API with four endpoints that matter: product pages, the cart, search and checkout. The team wants a dashboard for today. They also want to answer, next spring, whether checkout got slower after the autumn release, and whether its p99 last Black Friday was worse than this one.</p> <p>Request logs answer that, if you keep them. Most teams don&rsquo;t keep them for a year because the bill for storing and scanning them grows every month. Monitoring tools keep the history, usually as pre-averaged numbers, and a p99 averaged across minutes isn&rsquo;t the hour&rsquo;s p99. RollupDB sits in between. It keeps per-endpoint counts, sums, extremes and a percentile sketch, and merges them correctly as they age.</p>