title: How to access to oplog MongoDB (MMS replica set)
body: <p>I have a MongoDB replica set with <a href="https://mms.mongodb.com" rel="nofollow">MMS</a>. I created a user with all privileges (all available on MMS) but I can't access to the local db and/or oplog colecction. TRACE:</p>
  
  <pre><code>mydatabse-r1:PRIMARY&gt; use local
  switched to db local
  mydatabse-r1:PRIMARY&gt; db.oplog.rs.find().pretty();
  error: { "$err" : "not authorized for query on local.oplog.rs", "code" : 13 }
  </code></pre>
  
  <p>I need connect my Meteor app and another apps with Node.js to the oplog but I cannot access it. </p>
  
  <p><strong>Why?</strong>
  Because I'm working on a script with Node.js to create a queue based on the oplog. This is possible, I tested on MongoHQ and MongoLab successfully, but now I need run this in my MMS production replica set with MMS without create a custom MongoDB replica set. </p>