Consistency in the sense it is used in ACID means that all constraints are satisfied before and after any change. When a system assures that you can’t read data that is inconsistent, they’re saying for example that you will never read data where a child row references a non-existent parent row, or where half of … Read more
The solution I went with was to add a System aggregate root that could maintain a list of the current Facility names. When creating a new Facility, I use the System aggregate (only one System as a global object / singleton) as a factory for it. If the given facility name already exists, then it … Read more
Eventual consistency: I watch the weather report and learn that it’s going to rain tomorrow. I tell you that it’s going to rain tomorrow. Your neighbor tells his wife that it’s going to be sunny tomorrow. You tell your neighbor that it is going to rain tomorrow. Eventually, all of the servers (you, me, your … Read more