I've not seen any explanation about why the solution offered by the Go team was unacceptable. Its weird that that is completely left out of the blog post here.
You know, like be good neighbors and respectful of other people's resources, maybe read robots.txt and not make excuses for why you are writing shitty stateless workers that spam the rest of the community.
Edit: Uh okay, if it's not user traffic then why wasn't the "don't background refresh" not an option?
Doing shallow clones, which are significantly cheaper.
Google is DDoSing them, by their service design. Why a full git clone, why not shallow? Why do they need to do a full git clone of a repository up to a hundred times an hour. It doesn't need that frequency of a refresh.
The likely answer is that the shared state to handle this isn't a trivial addition, it's a lot simpler to just build nodes that only maintain their own state. Instead of doing it on one node and sharing that state across the service, just have every node or small cluster of nodes do its own thing. You don't need to build shared state to run the service, so why bother? That's just needless complexity after all, and all you're costing is bandwidth, right?
That's barely okay laziness when you're interacting with your own stuff and have your own responsibility for scaling and consequences. Google notoriously doesn't let engineers know the cost of what they run, because engineers will over-optimise on the wrong things, but that also teaches them not to pay attention to things like the costs they inflict on other people.
It's unacceptable to act in this kind of fashion when you're accessing third parties. You have a responsibility as a consumer to consume in a sensible and considered fashion. Avoiding this means you're just not costing yourself money through your laziness, you're costing other people who don't have stupid deep pockets like Google.
This is just another way in which operating at big-tech-money scales blinds you to basic good practice (I say this as someone who has spent over a decade now working for big tech companies...)
Huh? I left a few months ago but there was a widely used and well known page for converting between various costs (compute, memory, engineer time, etc).
Thats a DDoS.
I could build a system that did this in a week without any support from Google using existing open source tech. It's mind boggling that Google isn't honoring robots.txt, is requesting full clones, and isn't maintaining a local cache.
If you disregard the question who pays for a moment and only look at what makes sense for the "bits", the stateless architecture seems not so bad. Just a pity that in reality somebody else has to foot the bill.
I was not talking about how the nodes store data, but about a central cache. Purely architecture wise, it doesn't make sense to introduce a central storage that just mirrors Sourcehut (and all other Git repositories). Sourcehut is already that central storage. You would just create a detour.
It's also not an easy problem. If the cache nodes try to synchronize writes to the central cache, you are effectively linearizing the problem. Then you might as well just have the one central cache access Sourcehut etc. directly. But then of course you lose total throughput.
I guess the technically "correct" solution would be to put the cache right in front of the Sourcehut server.
If Google is going to blindly hammer something because they must have their Google scale shared nothing architecture pointed at some unfortunate website, then they should deploy a gitea instance that mirrors sr.ht to Google Cloud Storage, and hammer that.
It's unethical to foist the egress costs onto sr.ht when the solution is so so simple.
Some intern could get this going on GCP in their 20% time and then some manager could hook the billing up to the internal account.