jwzNov 26, 2022
Mastodon stampede. "Federation" now apparently means "DDoS yourself." Every time I do a new blog post, within a second I have over a thousand simultaneous hits of that URL on my web server from unique IPs. Load goes over 100, and mariadb stops...
https://jwz.org/b/yj6w
Mastodon stampede

"Federation" now apparently means "DDoS yourself." Every time I do a new blog post, within a second I have over a thousand simultaneous hits of that URL on my web server from unique IPs. Load goes over 100, and mariadb stops responding. The server is basically unusable for 30 to 60 seconds until the stampede of Mastodons slows down. Presumably each of those IPs is an instance, none of which ...

Show threadLucyNov 26, 2022
@jwz MariaDB/MySQL cope so bad under high load it's insane. Maybe having some sort of "staticizing" mechanism to snapshot the dynamic content and then serve it through nginx with some fine tuning would help? (compression? connection reuse? cache-instructing headers?)
Show threadjwzNov 26, 2022
@lucent Again, I don't really need you leaning over my desk and saying "You know what you OUGHTA do", thanks.
Show threadAlexander Hamizdat 🌹Nov 26, 2022
@jwz @lucent we're only doing this because it's so shocking. Like, you're a bit of a legend and we did not expect not only for these issues to knock your blog over, but for you to be so salty over it.
Show threadLucyNov 26, 2022
nah, the stress is understandable. @jwz copypasted the same message to all people that replied because everyone was pushing the same solution in different flavours.
the issue of fediverse instances pinging as soon as the post gets forwarded is legitimate, but hard to tackle (i.e. would you trust a pre-crawled preview coming from another server?).
Show threadAlexander Hamizdat 🌹Nov 26, 2022

@lucent right, so if he has a lot of followers, he's on a lot of home feeds so these are at least mostly legitimate. I know I clicked as soon as I saw it.

My problem isn't that he's surprised by a traffic spike, but that he's trying to make it Mastodon's problem. He should own his own setup and stop pretending like 1000 hits is some sort of DDoS. It's ok to say "I got knocked over, I need to consider caching" instead of "I got knocked over, fuck you for visiting" which is how this comes off.

Show threadcalebNov 28, 2022
@alexhammy209 @lucent ig what’s the diff between mastodon and 100 RSS feed readers? ig it’s just that it’s a thundering herd, rather than spaced out by random chance of polling..
Show threadAlexander Hamizdat 🌹

@calebjasik We call it the "single throat to choke" principle. If you have to blame someone for your problems, it's best for it to be centralized.

@lucent

Nov 28, 2022 at 12:41pmWeb