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milan@discuss.tchncs.de

Instance is very slow lately (discuss.tchncs.de)

submitted 2 months ago by Shatur@discuss.tchncs.de to c/tchncs@discuss.tchncs.de

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For several months I notice weird slowdowns on this instance. I'm pretty sure it's not my internet since other instances works fine... Anyone else noticed it? First loading of the front page is especially slow for me. It's about 7 seconds or so. I live quite close to Germany 🤔

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[–] milan@discuss.tchncs.de 18 points 2 months ago* (last edited 2 months ago) (3 children)

At least for this time, it appears some child wrote a bad crawling bot, heavily hammering the instance with requests for posts, comments and stuff - and i think they knew as they hide behind a vpn. For now things should be better as i did some short term measures and i am trying to better prevent such actions better.. hoping for the best.

Its people like this who should donate lol.

I kinda lost track on my Anubis deployments, it appears here i only have a useragent blacklist so its time to give it prio for lemmy as well. However i worry whether that is sufficient.

(while things are much healthier again, i acknowledge that at least in the webui, its not as fast as it should be)

[–] ddenis@discuss.tchncs.de 6 points 2 months ago (1 children)

I hope it’s not me, I am working an iOS app for Lemmy and been experimenting with network fetching and retrying 😅 my app, Spud, should be identifying itself in User-Agent

[–] milan@discuss.tchncs.de 6 points 2 months ago

thank you for the info but no, there was no helpful identification, the useragent was pretty generic

[–] Shatur@discuss.tchncs.de 6 points 2 months ago* (last edited 2 months ago)

Thank you a lot for the info! Hope you'll find a solution!

[–] pruwybn@discuss.tchncs.de 3 points 2 months ago (1 children)

Thank you! Seems much faster now.

[–] milan@discuss.tchncs.de 3 points 2 months ago

mmh did some more tuning on the database this morning as the cache hit ratio was a bit low, i hope the calculations for available memory prove to be correct :)