Optimizing

• When you insert a file, a worker begins saving copies of it to all of the stores you define for the collection. The copies are saved to stores in the order you list them in the stores option array. Thus, you may want to prioritize certain stores by listing them first. For example, if you have an images collection with a thumbnail store and a large-size store, you may want to list the thumbnail store first to ensure that thumbnails appear on screen as soon as possible after inserting a new file. Or if you are storing audio files, you may want to prioritize a "sample" store over a "full-length" store.