What is an open source load balancer that allows for hash based balancing? I would like to do hash based load balancing of a URL but first remove the user specific arguments from the URL. Basically want to increase Varnish's cache performance by adding URL to node persistence.
Example: example.com/foo/usertoken/bar
Where the hash would be based on: example.com/foo/bar.
- Edited for clarity, bias, and URL modification. *