Instance is very slow lately

4 months ago by Shatur to c/tchncs

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 🤔

milan 18 points 4 months ago

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)

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path: 0 24387077, hotness: undefined, score: 18, children: 5

ddenis 6 points 4 months ago

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

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path: 0 24387077 24387322, hotness: undefined, score: 6, children: 1

milan 6 points 4 months ago

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

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path: 0 24387077 24387322 24387646, hotness: undefined, score: 6, children: 0

Shatur 6 points 4 months ago

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

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path: 0 24387077 24389072, hotness: undefined, score: 6, children: 0

pruwybn 3 points 4 months ago

Thank you! Seems much faster now.

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path: 0 24387077 24400540, hotness: undefined, score: 3, children: 1

milan 3 points 4 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 :)

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path: 0 24387077 24400540 24400631, hotness: undefined, score: 3, children: 0

phr 8 points 4 months ago

time to donate more to milan, to get a bigger cable? ;)

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NeatNit 2 points 4 months ago

Good idea!

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path: 0 24386277 24386839, hotness: undefined, score: 2, children: 0

fatcat 5 points 4 months ago

Same here. :( Austria

Today it is nearly unusable, on most days it's just very slow.

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path: 0 24386276, hotness: undefined, score: 5, children: 0

schnurrito 4 points 4 months ago

Yes. For me too. Been thinking of switching to another instance TBH. :/

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path: 0 24385726, hotness: undefined, score: 4, children: 0

benoegen 3 points 4 months ago

I just came back to Lemmy in general and was surprised how slow it was for me. Rather happy I'm not the only one

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path: 0 24386566, hotness: undefined, score: 3, children: 0

NeatNit 2 points 4 months ago

Yeah, definitely not just you. There's a thread from 2 months ago https://discuss.tchncs.de/post/59450718 which I think is the same issue, but I really don't know.

Really hope they can get to the bottom of this, something's definitely going wrong somewhere in the chain.

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path: 0 24386824, hotness: undefined, score: 2, children: 1

milan 4 points 4 months ago

Thats about a (potentially) unrelated issue with the web application. I am lucky that i checked as i first discarded the problem due to similar symptoms until somebody told me things are still slow.

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path: 0 24386824 24387140, hotness: undefined, score: 4, children: 0