title: MongoDB fast deletion best approach
body: <p>My application currently use MySQL. In order to support <strong>very</strong> fast deletion, I organize my data in partitions, according to timestamp. Then when data becomes obsolete, I just drop the whole partition.<br>
  It works great, and cleaning up my DB doesn't harm my application performance.</p>
  
  <p>I would want to replace MySQL with MongoDB, and I'm wondering if there's something similiar in MongoDB, or would I just need to delete the records one by one (which, I'm afraid, will be really slow and will make my DB busy, and slow down queries response time). </p>