title: Getting continuous 'Request rate is large' error
body: <p>I'm pushing bunch of data in Cosmos DB using MongoDB NodeJS drivers. I'm running into the following error</p>
  
  <p><code>{"Errors":["Request rate is large"]}</code></p>
  
  <p>I realize this error occurs when the RU/s have exceeded the set threshold. I have partitioned my collection and set 2000 RU/s. I also have set an exponential backoff delay if that error occurs. It was working fine earlier i.e. it retried after a while if it ran into that error but succeeded after waiting. But currently it's consistently throwing the 'Request rate is large' even though I have a mechanism to try again after some delay. Any idea what might be going on and how can I resolve the issue?</p>
  
  <p>Along with that is there a way to extract the raw response headers sent from cosmos DB using MongoDB NodeJS driver as I would like to extract <code>x-ms-retry-after-ms</code> and <code>x-ms-request-charge</code> headers.</p>