0

I've used services where there are multiple application servers spread out throughout US, at least I have to assume because I could explicitly use urls like EastUS.email.Com or WestUS.email.Com or Euro.email.com (as opposed to just email.com. I understand having multiple application servers to spread out the load, but what I don't understand is how I can apparently use any of the above urls to access the same email address and get up to date information -- This makes it seem like all three app pools connect to the same database -- If we only have one database, how does having multiple application servers help with load balancing and/or redundancy?

Sidney
  • 184
  • 1
  • 1
  • 7
  • Databases can be replicated to many servers for both redundancy and geographic location. – ceejayoz Jul 13 '17 at 00:39
  • @ceejayoz So in the event of three app servers, each having it's own database, would App server A stay in real time sync with DB's B, and C? – Sidney Jul 13 '17 at 00:44
  • 1
    Maybe. Depends how you set it up. There are many different ways such a system could work behind the scenes. – ceejayoz Jul 13 '17 at 00:53

0 Answers0