Receive, Store, pass and delete a “file” using Amazon Webservices

Question

I have installed a Tomcat7 server on Amazon EC2. One of my Servlets receive a "file" as a multipart post. I need to store this files in a directory structure and later the file will be retrived by another servlet and send to a client and deleted from the Amazon Web Services.

My Question Where and how should I store these file and how should I create a directory structure using Servlets.

I am looking at

1. Quickest possible access to the file.
2. Store of the file is need as long as it is not send to the client.

Answer 1

You really have two options:

1-Store the content at your local instance storage (And for your instance storage, I highly recommend EBS over instance store (see this question for the background). It would be faster to store and retrieve your files, and you can always re-scale your instance when needed.

2-Store your files at S3. Store/retrieve times will be slower, but you get "automagic" scalability, encryption, enhanced durability and availability (without putting effort into them) and the possibility to make the files publicly available, with direct links, without the need to pass through your web application. Other than that, since the files are not in a specific EC2 instance, you can scale your web application by adding new instances while keeping files centralized on S3.

My recommendation would be S3, even though you might lose some speed while delivering files. Set up both environments and have some tests. It may help you deciding.

Hope it helps.