title: Use of Prometheus scrape_timeout
body: <p>In the prometheus configuration I have a job with these specs:</p>
  
  <pre><code>- job_name: name_of_my_job
       scrape_interval: 5m
       scrape_timeout: 30s
       metrics_path: /metrics
       scheme: http
  </code></pre>
  
  <p>The script that creates the metrics takes 3 minutes to finish, but from prometheus I don't see the metrics. What is the operation of the scrape_timeout variable?</p>