chaospatterns
@chaospatterns@lemmy.world
- Comment on Why do so many put their resources in AWS us-east-1 when that's the only one (that I'm aware of) that has ever gone done? 6 days ago:
Some people are asking why other regions seem to be affected when us-east-1 goes down. Why aren’t they separated out? I used to work in AWS, but will speak generally.
First, it’s important to understand the concept of a control plane vs a data plane. Amazon and other big scale companies often talk in terms of control plane/data plane separation because those two concepts have wildly different scale and requirements.
A control plane is the side of your service that handles the administrative functions of a service. For example, AWS S3 service would separate out bucket creation and deletion work from the file create/edit. In Route 53, this would be creating and editing zones. In IAM, it’s the creation of AWS access keys for IAM users. IAM Roles, IIRC, work differently and can function more in the data plane.
A data plane is the side of the service that handles the main meat and potatoes of a service. For example, AWS S3 any object key creates, edits, deletes would all be part of the data plane. In Route 53, these would be any DNS call. I don’t know if updating a record was considered a data plane call or not.
These are separated out because data plane generally massively dwarf the number of calls for administrative APIs. It’s also done because control plane calls often times have some extra complexities. Like in Route 53, to create a zone means you need to go find n different name servers that can handle a given domain name without overlapping with another customer, you need to tell them that they should now handle calls, you need to get the records to those servers running all over the world.
The fact is Route 53 is globally replicated and they need to have a source of truth and engineering culture pushes Amazon towards a pull based approach. If a user creates a zone in eu-west-1, they still expect it to be on servers all over the world, so how do you get it there? Well, AWS takes the approach that certain services can have a single region dependency for their control plane in the case that it’s infeasible technically or to the business to avoid one, however the data plane of the service can’t have that dependency.
- Comment on Why do so many put their resources in AWS us-east-1 when that's the only one (that I'm aware of) that has ever gone done? 6 days ago:
N. California as a region can’t grow and it’s priced accordingly. Instead, compare US East (Ohio) or US West (Oregon) for a region that’s price competitive. A lot of Amazon internal stuff was starting to move to US East (Ohio) because it was geographically close, but a lot less problematic.
- Comment on 👁️🐽👁️ 2 months ago:
That’s also why certain contact lenses can’t be worn overnight or for long periods of time because they aren’t as breathable. At least that’s what my eye doctor said when I got them.
- Comment on Mastercard release a statement about game stores, payment processors and adult content 2 months ago:
buy a stock through a company like Fidelity where is the stock actually held and that was layers of public/private companies/corporations
- Comment on I'm setting up a Windows 11 laptop for my uncle. Is there a sneaky way to make it block right-wing bullshit websites? 3 months ago:
If you alter it to 0.0.0.0 then it shouldn’t pop an SSL error, it would be a connection failed error.
- Comment on Cozy video games can quell stress and anxiety 6 months ago:
Personally, I’ve been enjoying cozy games like Dorfromantik, Rail Route, or even Transport Fever 2 (I just play with unlimited money and build great transit networks that I wish existed in my home country.)
- Submitted 6 months ago to games@lemmy.world | 29 comments
- Comment on Can I pay someone to add a specific feature to an open source app? 9 months ago:
This is a good idea. It’s a lot easier to incentivize a maintainer who is already familiar with a project and invested in it with some money than it is to get a person who is unfamiliar with a project.
How much you should donate and how likely they are to agree depends on how complex your request is, whether they feel it fits in with the project for other people, and how busy they are.
- Comment on Is it cheaper to use a plug-in oil radiator to eat an individual room, or run the central heater to heat an individual room and living room? 11 months ago:
I’m not an HVAC technician so I wouldn’t know exactly, but I think there’s two things to consider: static pressure and duty cycle. Static pressure is the fan working hard to spin which causes wear on bearings. Duty cycle is how long the machine runs. If your duty cycle is too low then the machine is turning on and off quickly which is bad.
You could look at the size of the unit and there’s some rules of thumb that translate size, climate, and square footage and there are online calculators you can use. I think the only way to know for sure is to measure the pressure drop across the intake and outflow and see what the fan motor is rated for.
- Comment on Is it cheaper to use a plug-in oil radiator to eat an individual room, or run the central heater to heat an individual room and living room? 11 months ago:
Depends on the unit and whether it was over sized or under sized for the space, but restricting 60℅ air flow is a lot.