title: How To Reduce Prometheus(Federation) Scrape Duration
body: <p>I have a Prometheus federation with 2 prometheus' servers - one per Kubernetes cluster and a central to rule them all.</p>
  
  <p>Over time the scrape durations increase. At some point, the scrape duration exceeds the timeout duration and then metrics get lost and alerts fire.</p>
  
  <p>I’m trying to reduce the scrape duration by dropping metrics but this is an uphill battle and more like sisyphus then Prometheus. </p>
  
  <p>Does anyone know a way to reduce the scrape time without losing metrics and without having to drop more and more as times progresses?</p>
  
  <p>Thanks in advance!</p>