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by solatic 7 days ago
It replaces DNS's pull-based architecture (contact a DNS server to get the IP address) with a push-based one (push the IP addresses to each /etc/hosts file).

Suggesting that a push-based, Ansible-based architecture will scale to hundreds of thousands of targets, with such pushes happening hundreds if not thousands of times a day, is a junior-level idea at best, dark comedy if I'm being charitable, and professional malpractice at worst.
2 comments
colechristensen 7 days ago
There are two kinds of junior engineers. Only hire one of them. (being very wrong is fine. Being CONFIDENTLY very wrong is not)
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trumpdong 6 days ago
This sounds a bit like saying: don't use MySQL, because it can't scale to one billion requests per second. How many applications are actually running at that scale?
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solatic 6 days ago
Did you read the original article?

> The Facebook / Meta outage was so significant

The author specifically called out the Meta outage, as if he was offering a prescription ("It's easy to configure systems with tools like Ansible or pyinfra at scale") that would have prevented Meta (at Meta's scale) from suffering an outage. The argument that Meta should not have used DNS except that Meta runs at a scale where DNS is necessary... who comes up with these arguments?

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