Almost all the reliability issues I encounter is usually due to constraints ordered by people who don't have to deal with on-call.
Things like, running in AWS but you have to use a custom K8S install so they aren't dependent on AWS.
Using self managed Kafka so that you aren't dependent on proprietary tech.
It all sucks because they are always less reliable and generate their own errors and noise for on-calls.
If they had to deal with phone calls every time there's a firewall issue that had absolutely nothing to do with the application, they would soon change their tune.
Things like, running in AWS but you have to use a custom K8S install so they aren't dependent on AWS.
Using self managed Kafka so that you aren't dependent on proprietary tech.
It all sucks because they are always less reliable and generate their own errors and noise for on-calls.
If they had to deal with phone calls every time there's a firewall issue that had absolutely nothing to do with the application, they would soon change their tune.