It's also true in circumstances where things have the same name but act differently.

You'd be forgiven for believing that AWS IAM and GCP IAM are the same thing for example, but in GCP an IAM Role is simply a list of permissions that you can attach to an identity. In AWS an IAM Role is the identity itself.

Other examples; if you're coming from GCP, you'd be forgiven for thinking that Networks are regional in AWS, which will be annoying to fix later when you realise you need to create peering connections.

Oh and while default firewall rules are stateful on both, if you dive into more advanced network security, the way rules are applied and processed can have subtle differences. The inherent global nature of the GCP VPC means firewall rules, by default, apply across all regions within that VPC, which requires a different mindset than AWS where rules are scoped more tightly to the region/subnet.

There's like, hundreds of these little details.

There are multiple AWS services which are "global" in the sense that they are entirely hosted out of AWS East 1

Edit to add: This might spur on a few more to start doing that, but people are quick to forget/prioritise other areas. If this keeps happening then it will change.

https://github.com/actions/runner-images/issues/1445#issueco... https://github.com/orgs/community/discussions/76636

For instance: When there's a widespread Verizon cellular outage, sites like downdetector will show a spike in Verizon reports.

But such sites will also show a spike in AT&T and T-Mobile reports. Even though those latter networks are completely unaffected by Verizon's back-end issues, the graphs of user reports are consistently shaped the same for all 3 carriers.

This is just because some of the users doing the reporting have no clue.

So when the observation is "AWS is in outage and people are reporting issues at Google, and Microsoft," then the last two are often just factors of people being people and reporting the wrong thing.

(You're hanging out on HN, so there's very good certainty that you know what precisely what cell carrier you're using and also can discern the difference betwixt an Amazon, a Google, and a Microsoft. But lots of other people are not particularly adept at making these distinctions. It's normal and expected for some of them to be this way at all times.)

P.S. Your blog could do with an rss feed ;). I will track https://github.com/spegel-org/spegel/releases.atom for now

I find that it better surfaces the best discussion when there are multiple threads (like in this example), and it keeps showing slightly older threads for longer when there's still discussion happening.