Re:Costs of running a Python webapp for 55k monthly users
by sweeneyrod on Friday September 04, 2020 @06:38AM
(#24373706)
If Digital Ocean is giving you an hour of downtime every two weeks (two 9s and a 7) then they're breaking their SLA (four 9s).
Re:Costs of running a Python webapp for 55k monthly users
by TekMol on Friday September 04, 2020 @03:10AM
(#24372497)
What does excellent uptime
mean in your book?
Over the last years, across multiple datacenters, I have seen maybe one or two short downtimes per year. None ever lasting more then 5 minutes.
Re:Costs of running a Python webapp for 55k monthly users
by FrozenSynapse on Friday September 04, 2020 @04:25AM
(#24372905)
https://aws.amazon.com/message/41926/ this lasted hours and affected almost everyone using us-east-1, large portion of internet was unavailable because they had no multi-region setups.
> In my experience, the complicated setups that are justified by the argument of "reliability" have more downtime then a single VPS. The reason is probably that there are more moving parts and more has to be maintained / can go wrong.
> These days, a single VPS in the right datacenter has excellent uptime.
Again, maybe in your experience but that's not universal. There's literally no redundancy with running everything off a single VPS and if that datacenter has network or hardware problems, then your service is down.
Is redundancy necessary for the scale of OP's app considering it provides 0 income? Most likely not, but that's a decision they've decided on and there's nothing wrong with that.
What does excellent uptime mean in your book? With Digital Ocean's AM2 region I had regular downtime every few weeks and while I'm alright with it, if I had another VPS in another datacenter it would've had next to no effect on the customer experience. But an hour or more of downtime every two weeks isn't excellent.