title: Azure Function on consumption plan cold start can be up to 30 minutes
body: <p>I have an azure function v3, written in C#, using the class library approach.</p>
  <ul>
  <li>The function is triggered by blob storage.</li>
  <li>The function is using a Consumption plan.</li>
  </ul>
  <p>The problem is that <strong>cold starts can be as long as 30 minutes</strong>! I have consulted the documentation from <a href="https://docs.microsoft.com/en-us/azure/azure-functions/functions-scale#cold-start-behavior" rel="nofollow noreferrer">this link</a></p>
  <p>But there is no specific figures with regards to expected cold start timings.</p>
  <p>An interesting observation is that if I navigate to the portal, and hit Refresh button:</p>
  <p><a href="https://i.stack.imgur.com/sG7pG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/sG7pG.png" alt="enter image description here" /></a></p>
  <p>Then the function gets immediately triggered.</p>
  <ol>
  <li>Is this normal, expected behavior?</li>
  <li>Could you please point me to any docs explicitly stating that ~0-30-50mins is OK for cold starts on Consumption Plan?</li>
  </ol>