this post was submitted on 04 Jul 2023
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Lemmy.World Announcements

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Lemmy.world status update 2023-07-04 (self.lemmyworld)
submitted 1 year ago* (last edited 1 year ago) by ruud to c/lemmyworld
304 comments fedilink hide all child comments
 

Status update July 4th

Just wanted to let you know where we are with Lemmy.world.

Issues

As you might have noticed, things still won't work as desired.. we see several issues:

Performance

  • Loading is mostly OK, but sometimes things take forever
  • We (and you) see many 502 errors, resulting in empty pages etc.
  • System load: The server is roughly at 60% cpu usage and around 25GB RAM usage. (That is, if we restart Lemmy every 30 minutes. Else memory will go to 100%)

Bugs

  • Replying to a DM doesn't seem to work. When hitting reply, you get a box with the original message which you can edit and save (which does nothing)
  • 2FA seems to be a problem for many people. It doesn't always work as expected.

Troubleshooting

We have many people helping us, with (site) moderation, sysadmin, troubleshooting, advise etc. There currently are 25 people in our Discord, including admins of other servers. In the Sysadmin channel we are with 8 people. We do troubleshooting sessions with these, and sometimes others. One of the Lemmy devs, @[email protected] is also helping with current issues.

So, all is not yet running smoothly as we hoped, but with all this help we'll surely get there! Also thank you all for the donations, this helps giving the possibility to use the hardware and tools needed to keep Lemmy.world running!

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[โ€“] [email protected] 25 points 1 year ago (2 children)

The need to restart server every so often to avoid excessive ram usage bit is very interesting to me. This sounds like some issue with memory management. Not necessarily a leak, but maybe something like server keeping unnecessary references so the object cannot be dropped.

Anyway, from my experience Rust developers love debugging such kind of problems. Are Lemmy Devs aware of this issue? And do you publish server usage logs somewhere to look deeper into that?

[โ€“] [email protected] 10 points 1 year ago

server keeping unnecessary references so the object cannot be dropped

You indeed just described a memory leak :D

[โ€“] [email protected] 3 points 1 year ago

Oh they're well aware, there's a few tickets open.

For example there was some stuff about rate limiting using a lot of memory: https://github.com/LemmyNet/lemmy/pull/3111