title: Mongoose insertMany limit
body: <p>Mongoose 4.4 now has an <code>insertMany</code> function which lets you validate an array of documents and insert them if valid all with one operation, rather than one for each document:</p>
  
  <p><code>var arr = [{ name: 'Star Wars' }, { name: 'The Empire Strikes Back' }];
  Movies.insertMany(arr, function(error, docs) {});</code></p>
  
  <p>If I have a very large array, should I batch these? Or is there no limit on the size or array?</p>
  
  <p>For example, I want to create a new document for every Movie, and I have 10,000 movies.</p>