Cloudflare Developers•3y ago

is it possible to warm cache on multiple locations?

SSalamus is it possible to warm cache on multiple locations?

Cyb3r-Jak3•8/20/23, 3:02 PM

None I'm aware of. Even if you use heath checks you get a single file from the request

SalamusOP•8/20/23, 3:02 PM

yeah i just want to pre-warm cache without buying 1000 servers

SalamusOP•8/20/23, 3:03 PM

i tried forcing the IP of another country

SalamusOP•8/20/23, 3:03 PM

but it seems to be anycasted

Cyb3r-Jak3•8/20/23, 3:03 PM

Yeah Cloudflare is any cast. Maybe using a VPN and scripts might do it

SalamusOP•8/20/23, 3:03 PM

its curl php script

SalamusOP•8/20/23, 3:03 PM

so cant use vpn

SalamusOP•8/20/23, 3:03 PM

i might use tor / proxy?

Cyb3r-Jak3•8/20/23, 3:04 PM

Tor isn't going to give you a specfic location

SalamusOP•8/20/23, 3:04 PM

yeah

SalamusOP•8/20/23, 3:04 PM

i need something to have X fixed locations

Cyb3r-Jak3•8/20/23, 3:05 PM

Plus more likely to get a bot challenge from Tor

Cyb3r-Jak3•8/20/23, 3:06 PM

You could run a script on a server that changes VPN location then runs the php script and just loop that

SalamusOP•8/20/23, 3:08 PM

i need to see some fixes

SalamusOP•8/20/23, 3:08 PM

or just buy 1 vps per country

SalamusOP•8/20/23, 3:10 PM

i already have tiered cache

SalamusOP•8/20/23, 3:11 PM

so i just need a few nodes to have cache

kian•8/20/23, 3:13 PM

If the website isn't being requested enough for it to already be in cache, it's probably going to be evicted soon enough anyways - why do you need to prewarm it?

SalamusOP•8/20/23, 3:17 PM

first request is very slow sometimes

SalamusOP•8/20/23, 3:17 PM

a server can wait 15-20 seconds

SalamusOP•8/20/23, 3:17 PM

user cant

SalamusOP•8/20/23, 3:17 PM

without any modification to my setup cache rate went from 90% to 50%

zegevlier•8/20/23, 3:17 PM

Perhaps it would be worth making your own caching layer using KV? Then you can be sure it's at least pretty fast all over the world

SalamusOP•8/20/23, 3:18 PM

stuff is dynamic

zegevlier•8/20/23, 3:20 PM

But you're already trying to cache it?

Zzegevlier But you're already trying to cache it?

SalamusOP•8/20/23, 3:29 PM

dynamic as in

SalamusOP•8/20/23, 3:29 PM

not files that exist

SalamusOP•8/20/23, 3:30 PM

they're generated on the spot

zegevlier•8/20/23, 3:33 PM

Yes, but you're trying to cache them worldwide. I'm suggesting that, instead of trying to keep the cache warm around the world, you store the data in KV. KV usually responds pretty quickly, even when reading from cold storage. That way, you don't need to try to keep the cache warm everywhere, you just need to put it in KV.

SalamusOP•8/20/23, 3:33 PM

it would be a good idea but i change like

SalamusOP•8/20/23, 3:33 PM

5000 files in 10 minutes

SalamusOP•8/20/23, 3:33 PM

in small increments

zegevlier•8/20/23, 3:33 PM

But then caching also wouldn't work well, right? Am I missing something?

SalamusOP•8/20/23, 3:34 PM

in those 10 minutes i can have 50-100k visitors

SalamusOP•8/20/23, 3:35 PM

used to be like that

SalamusOP•8/20/23, 3:35 PM

had 90% cache like just a few days ago

zegevlier•8/20/23, 3:35 PM

Can you maybe try to explain exactly what you need? Trying to piece it together from the small snippets you're sharing is kinda difficult

SalamusOP•8/20/23, 3:36 PM

its wayy too complicated/not so easy to explain

SalamusOP•8/20/23, 3:36 PM

but i have files and i want to cache them

SalamusOP•8/20/23, 3:36 PM

and they dont have a long life

zegevlier•8/20/23, 3:36 PM

You're not gonna have useful help if you can't explain what you need

SalamusOP•8/20/23, 3:36 PM

it works like a live stream (if you use hls!)

SalamusOP•8/20/23, 3:38 PM

small files

SalamusOP•8/20/23, 3:38 PM

that change sometimes

zegevlier•8/20/23, 3:40 PM

How often is sometimes?

SalamusOP•8/20/23, 3:45 PM

every 10 minutes?

SalamusOP•8/20/23, 3:45 PM

or smth

SalamusOP•8/20/23, 3:45 PM

but they do get quite a lot of hits before being useless

SalamusOP•8/20/23, 3:48 PM

but i still dont understand what happened

is it possible to warm cache on multiple locations?

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