Another day, another update.
More troubleshooting was done today. What did we do:
- Yesterday evening @phiresky@phiresky@lemmy.world did some SQL troubleshooting with some of the lemmy.world admins. After that, phiresky submitted some PRs to github.
- @cetra3@lemmy.ml created a docker image containing 3PR's: Disable retry queue, Get follower Inbox Fix, Admin Index Fix
- We started using this image, and saw a big drop in CPU usage and disk load.
- We saw thousands of errors per minute in the nginx log for old clients trying to access the websockets (which were removed in 0.18), so we added a
return 404in nginx conf for/api/v3/ws. - We updated lemmy-ui from RC7 to RC10 which fixed a lot, among which the issue with replying to DMs
- We found that the many 502-errors were caused by an issue in Lemmy/markdown-it.actix or whatever, causing nginx to temporarily mark an upstream to be dead. As a workaround we can either 1.) Only use 1 container or 2.) set ~~
proxy_next_upstream timeout;~~max_fails=5in nginx.
Currently we're running with 1 lemmy container, so the 502-errors are completely gone so far, and because of the fixes in the Lemmy code everything seems to be running smooth. If needed we could spin up a second lemmy container using the ~~proxy_next_upstream timeout;~~ max_fails=5 workaround but for now it seems to hold with 1.
Thanks to @phiresky@lemmy.world , @cetra3@lemmy.ml , @stanford@discuss.as200950.com, @db0@lemmy.dbzer0.com , @jelloeater85@lemmy.world , @TragicNotCute@lemmy.world for their help!
And not to forget, thanks to @nutomic@lemmy.ml and @dessalines@lemmy.ml for their continuing hard work on Lemmy!
And thank you all for your patience, we'll keep working on it!
Oh, and as bonus, an image (thanks Phiresky!) of the change in bandwidth after implementing the new Lemmy docker image with the PRs.
Edit So as soon as the US folks wake up (hi!) we seem to need the second Lemmy container for performance. So that's now started, and I noticed the proxy_next_upstream timeout setting didn't work (or I didn't set it properly) so I used max_fails=5 for each upstream, that does actually work.
Thank you guys for your awesome work!
Also to other people: DONATE TO FOSS PROJECTS. If 50.000 people donate only 0.5โฌ, we have 25.000โฌ for funding the servers, coding, motivating/ people etc. Just don't take a cup of coffee for 1 day. We are already 2 millions in Lemmy instances. We can build a decentralized world together!!
You can pry my cup of coffee from my my cold, dead hands.
Will donate anyway, I really want this project to keep going.
euro contributed ๐ซก
Is there a good link? One for USD?
If there's a thing you really need to pay in a foreign currency, look into Revolut or Wise. Since I occasionally have to pay stuff in Turkish lira, GBP and donated to USD-only Receivers I like to keep Revolut as my secondary bank account since exchanging one currency to another is completely free!
you inspired me to serve the greater good!
For example, if you speak a second language, you can even help with translation in projects. Its very easy. E.g. I translated the Jerboa (Lemmy client for Android) in Greek 2-3 days ago. I needed only 1 hour to finish and special 15-20 minutes for fixes that I missed, yesterday.