A care to have when using a Load-Balancer

Amazon’s LB has a health-check feature that will try a GET call to the first vhost that you have on your instances. (alphabetically ordered)

So, if by a chance, the first vhost “aa.example.com.conf” isn’t replying properly to the LB’s GET, your LB will consider that instance off service, which means none of the other vhosts will be serving until you fix whatever is wrong with that first vhost, even if all the other vhosts are working perfectly.

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