title: What to do to prevent Delta Lake checkpoints to be removed in Azure Databricks?
body: <p>I noticed that I have only 2 checkpoints files in a delta lake folder. Every 10 commits, a new checkpoint is created and the oldest one is removed.</p>
  <p>For instance this morning, I had 2 checkpoints: 340 and 350. I was available to time travel from 340 to 359.</p>
  <p>Now, after a &quot;write&quot; action, I have 2 checkpoints: 350 and 360. I'm now able to time travel from 350 to 360.
  What can remove the old checkpoints? How can I prevent that?</p>
  <p>I'm using Azure Databricks 7.3 LTS ML.</p>