title: AWS hosted data storage for storing simple entities
body: <p>I need to choose data storage for simple system. The main purpose of the system is storing events - simple entities with timestamp, user id and type. No joins. Just single table.</p>
  
  <p>Stored data will be fetched rarely (compared with writes). I expect following read operations:</p>
  
  <ul>
  <li>get latest events for a list of users</li>
  <li>get latest events of a type for a list of users</li>
  </ul>
  
  <p>I expect about 0.5-1 million writes a day. Data older than 2 years can be removed.</p>
  
  <p>I'm looking for best fitted service provided by AWS. I wonder if using redshift is like taking a sledgehammer to crack a nut?</p>