Explore Caching Options for Large Collections

We have a number of collections with a large number of items, resulting in 1000s of AJAX calls that make responses slow. https://docs.google.com/spreadsheets/d/19-QcJpAPIBfAjtKX0_fOYLoocnXys4Mp6146XdZYpbE/edit?usp=sharing

Varnish and ReDis are 2 caching options we are considering. Shawn and Kevin said Varnish with wget to cache specific collections may work well. Corey mentioned wanting to reload the cache when an update to the collection is made.

From Kevin: "Finding the balance between invalidating/reloading will be a challenge. It's possible to control varnish directly, maybe as part of the update process we can have it wipe them out and reload the largest collections automatically."