Public proxy response times for Europe

[chriscoffee]

The current response times for Europe uncached or on the /list view which we know has problems are lenghty.

I can't see what the server sees but for various calls it's taking 30+s against the publically hosted proxy compared to one I'm hosting myself in Europe.

I'd like to have us deploy a public version of the proxy closer to this side of the pond 👍

[arschles]

From the Nov. 29 Meeting, @chriscoffee indicated that this is against the https://athens.azurefd.net server. Two solutions that I think we should look at:

1. Deploy another Athens "closer to this side of the pond" (as @chriscoffee said)
2. Do /list endpoint caching (Proposal: cache the /list endpoint for a short period of time? #893) to make that endpoint generally faster for anyone, even if they're in the same geographical location

Thoughts?

[ghost]

What about a geographic load balancing and two deployments to start. North America and Europe.

They would each have their own storage of course which would help us get messaging and replication across deployments working.

[arschles]

@robjloranger azure.athensfd.net is now running behind a caching proxy that does geographical load balancing (https://docs.microsoft.com/en-us/azure/frontdoor)

The script to deploy to all the backend regions (as of this writing, I'm doing east US, west europe and southeast asia) is at https://github.com/arschles/athens-azure.

I'm going to close this because the remaining work is caching the mutable endpoints like /list and /latest, which is #893