I'm working on a news centric website thats been around for years and is steadily accruing more and more page redirects. Currently we have around 375 redirects and are adding about 5-10 a month.
I know that NGinx is very, very fast at handling redirects, but presumably there must be some number of redirects that will affect performance in a meaningful way, and I would feel better if I knew how many that would be. Hundreds? Thousands? Millions?
We are able to handle large volumes of traffic by caching popular pages for a minute or two at a time in Memcached (reducing load on our database, the obvious bottleneck), but NGinx still has to route that traffic.
Is this something I should be at all concerned about? How many redirects is too many for a high traffic website?
[edit: as suggested, I've also posted this at ServerFault]