title: What happen to a message during poll in Amazon SQS?
body: <p>When I was going through this <a href="https://docs.aws.amazon.com/AWSSimpleQueueService/latest/SQSDeveloperGuide/sqs-basic-architecture.html" rel="nofollow noreferrer">Amazon SQS Document</a>
  I found that</p>
  <pre><code>The queue (which holds messages A through E) redundantly stores the messages across multiple Amazon SQS servers.
  </code></pre>
  <p><a href="https://i.stack.imgur.com/iCBY6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iCBY6.png" alt="enter image description here" /></a></p>
  <p>So, my question is when I poll <code>Message A</code> from SQS, does this <code>Message A</code> come from single server? Then what happened to the message which is store in the different server? How they remain invisible up to visible timeout or get deleted when consumers delete the message after processing?</p>