Django load balancing: How to share user media?

With two web servers serving the same Django application with the same underlying database, I could now balance all requests between the two servers.

Sessions are stored in the DB. Static media can be handled the same as if I used a content-delivery network (CDN).

But how do I handle user-uploaded media files that sit on a local filesystem of the webserver that receives the upload POST? Obviously, the second server will miss these files.

What is a reliable solution? NFS to some开发者_C百科 third server? Constantly running Unison or using a DVCS like Mercurial oder git?

Static media can be handled the same as if I used a content-delivery network (CDN).

There is your answer. Upload user media to a CDN. Checkout out django-storages for an S3 or Cloudfiles storage backend.

I personally use NFS to a third server, which then serves directly all the media when requested. This reduce the NFS usage to the upload phase, and the media server can be optimized for static assets.