On Sep 29, 2019, at 8:44 PM, Ron <ronljohnso...@gmail.com> wrote: > > On 9/29/19 8:09 PM, Steve Litt wrote: >> On Mon, 30 Sep 2019 07:46:14 +1000 >> Nathan Woodrow <madman...@gmail.com> wrote: >> >>> Redis is a in memory database so I would except it to be always much >>> faster.. >> Is there a way to have Redis periodically update an on-disk backup? >> That would be great, but otherwise you're at the mercy of your power >> company (here in Central Florida it's routine for power to go down and >> stay down for five hours). > > It would be criminal for it not to have an async writer process flushing > modified pages to disk. And to not have a UPS that you've tested.
It's perfectly reasonable to use Redis as a caching layer without any persistence at all. In such cases, flushing state to disk is a waste of resources. (For other use cases, yes, Redis allows you to flush state to disk.)
