this post was submitted on 04 Jul 2023
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You Should Know

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With the sluggishness of the site these last few days you can sometimes get slowness or infinitely loading icon when hitting submit. If you aren't sure if your post submitted, refresh the original page in a different tab before hitting submit again to see if it went through. I see double and triple posts in almost every comment section.

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[–] OonglusMoonglus@lemmy.world 60 points 1 year ago (5 children)

if only I had known this earlier

[–] Azzu@lemm.ee 8 points 1 year ago* (last edited 1 year ago)

I mean you have 2 comments total (this one and a duplicate of this one) it isn't really too late ;)

[–] astraeus@programming.dev 4 points 1 year ago

I hope you have learned the error of your ways

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[–] OonglusMoonglus@lemmy.world 57 points 1 year ago (1 children)

if only I had known this earlier

[–] DanglingFury@lemmy.world 24 points 1 year ago (2 children)

This is good to know. Upvoted for visibility.

[–] Lemmypy@feddit.nl 8 points 1 year ago

This is the way

[–] Lemmypy@feddit.nl 7 points 1 year ago

This is the way

[–] DanglingFury@lemmy.world 21 points 1 year ago

This is good to know. Upvoted for visibility.

[–] MisterSheepy@lemmy.world 18 points 1 year ago (1 children)

People are forgetting that a lot of these Lemmy servers are being run by just a couple people, sometimes with a server in their basement lol

[–] frozen@lemmy.frozeninferno.xyz 11 points 1 year ago

Or literal closet. >_>

[–] DanglingFury@lemmy.world 16 points 1 year ago* (last edited 1 year ago)

This is good to know. Upvoted for visibility.

[–] consumer451@lemmy.world 12 points 1 year ago* (last edited 1 year ago) (3 children)

Just to add to this, at least in wefwef, I sometimes get an error when I tap Post, saying that it failed. I am then left on the page, and can hit Post again. But it didn’t fail the first time, the post was made.

So this is not just users being impatient. There is a bug.

[–] T156@lemmy.world 5 points 1 year ago* (last edited 1 year ago) (1 children)

Might be due to either the websocket removal, or the sluggishness that does it.

The post processes, but the app doesn't get a response confirming that the post has been made, so it sits there until the app times out.

[–] consumer451@lemmy.world 4 points 1 year ago* (last edited 1 year ago)

I have not written real code for a very long time, and I don’t know the lemmy code base at all… but I described this bug to GPT-4 and it just turned me on to idempotency.

https://stripe.com/blog/idempotency

The call could succeed, but the connection breaks before the server can tell its client about it.

Seems like it’s non-trivial to implement in rust.

https://www.lpalmieri.com/posts/idempotency/

[–] Nfamwap@lemmy.world 4 points 1 year ago (1 children)

I've had the same on Liftoff

[–] Nfamwap@lemmy.world 7 points 1 year ago

See what I did there....?

[–] Nfamwap@lemmy.world 4 points 1 year ago

I've had the same on Liftoff

[–] prtm@lemm.ee 10 points 1 year ago

It's just Lemmy admins trying to give us the true Reddit experience

[–] frozen@lemmy.frozeninferno.xyz 9 points 1 year ago (1 children)

You should also know you can join smaller instances to help alleviate this problem. You'll still see most of the same content, especially if the instance has active users. Don't be too shy to sign up on some random instance, worse case scenario you just don't get approved.

[–] ProvokedGamer@lemmy.ca 4 points 1 year ago* (last edited 1 year ago)

I joined my instance after being on Lemmy.ml about a month ago for a day, and there was so much lag because it was the largest instance at the time. I then switched to my current instance when it only had ~50 users on it and it made the world of a difference. I went from seeing the site crash every 5 seconds and posts taking 30 seconds to submit, to having a stable connection to the Fediverse.

Overall, I feel like everyone should try to join smaller instances to distribute the load so that you don’t have a bad experience, and the instances don’t get overwhelmed. It’s a win-win for everyone.

[–] UnfortunateShort@lemmy.world 8 points 1 year ago (1 children)

You know, we don't have to copy everything from Reddit. Although it is pretty funny that we have exactly the same bug lol

[–] cyanarchy@sh.itjust.works 4 points 1 year ago

I expect some aspects of the internet will never change

[–] dm1336@lemmy.ca 6 points 1 year ago (2 children)

Just get off .World and onto another instance and it’s smooth sailing with mobile apps working great too.

[–] douglasg14b@lemmy.world 3 points 1 year ago

programming.dev is getting to be pretty damn slow too...

Comments post in 5-30 seconds, and up votes can take 30+ seconds to post. Searches are pointless, and loading comments can be a repetitive painful process of reloading till it works (504 gateway timeout)

[–] baked_tea@sh.itjust.works 2 points 1 year ago

Unless you try to interact with .world

[–] WontonSoup@lemmy.world 6 points 1 year ago
[–] ImplyingImplications@lemmy.ca 6 points 1 year ago (2 children)

Yes! The Lemmy devs should make it so that you can't hit the submit button 10 times in a row. People hit submit and nothing happens so they hit it again and again and again. Now there's a bunch of identical posts.

I remember the old days where sites would have a message saying "only hit submit once". That's gone now since sites prevent users from hitting submit more than once. I don't think Lemmy is doing that though!

[–] douglasg14b@lemmy.world 6 points 1 year ago

It's problematic because often you'll get an error that says it failed to post the comment. In which case it's fair to try again, but it actually posted anyways.

[–] The2b@lemmy.world 5 points 1 year ago (1 children)

You should be able to hit the submit button as many times as you want, but it should have a single transaction ID so the server can ignore duplicate submissions.

[–] lightswitchr@lemmy.world 2 points 1 year ago

Yep, it’s called an idempotent key. The server gets a request with a specific key (usually a random guid), stores it and ignores any further requests with the same key. It would be a great addition to Lemmy.

[–] douglasg14b@lemmy.world 5 points 1 year ago* (last edited 1 year ago) (1 children)

Yes, and I think they are.

Backend sizes likely need to be larger and more abundant. Depending on hosting provider this could be mean lighting your wallet on fire every month till you either get enough donations to make up for it, or you give up and shut it down.

This problem will only get worse as Lemmy increases in popularity from "extremely niche, extremely low volume"/trivial volume (~50-100k users) to anything other than that (1mill - 100mill users or further). And gets more difficult since economies of scale may be difficult to apply here due to the hosting model of Lemmy, meaning cost/user is likely to stay quite high when normally it would be drastically reduced the more users you have.

I'm gonna guess individual instances are going to be forced to break down into instances that host only a couple communities each as time goes on. This would be the pragmatic choice since it's very likely that individual communities can grow large enough to tank Lemmy instance performance for all others on that instance. Although that presents non-trivial UX concerns.

Though, again, many smaller scale instances means infrastructure costs may stay prohibitively high as a result of over provisioning or a lack of value from aggressive caching, read replicas...etc 🤔

Edit: I wonder if an instance can host individual communities on their own hardware. Or if there is some abstraction that lets users browse potentially hundreds/thousands of instances easily as if they where all communities?

[–] astraeus@programming.dev 2 points 1 year ago

I agree that having many smaller instances which serve more distinct communities is by far the most pragmatic choice. The idea of communities distinct from instances is nice on paper, but it gives instance managers the impression a single instance can serve a wide-range of interests without incurring proportional overhead on the resources.

Lemmy is the closest thing we have to the evolution of reddit. So far it's just a matter of handling the backend which was nearly always done by a well-resourced organization instead of individual volunteers. I think instances will naturally become more abundant, and specific to their purposes, and users will be able to distribute their accounts accordingly.

[–] Landrin201@lemmy.ml 5 points 1 year ago

I can confirm this is true in Jerboa; learned the other day the hard way.

[–] itadakimasu@programming.dev 5 points 1 year ago

Sounds like a bug to be that needs to be ironed out on the backend 😉

[–] martinbasic@lemmy.world 4 points 1 year ago

...And I learned that I need to copy the whole comment I type before submit jic my comment didn't upload, at least I have my comment restored.

[–] subignition@kbin.social 3 points 1 year ago (2 children)

Also note that if a large amount of time has passed while you're writing a response, you'll sort of time out, and the first attempt to post won't work, but because it's refreshing your session. The second attempt will post

[–] OpenStars@kbin.social 2 points 1 year ago

Even for short ones, it seems to happen always for me if I reply to one person, then try to write a top-level reply after that.

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[–] Candelestine@lemmy.world 3 points 1 year ago

Admin needs to sticky something to this effect.

What I do (web browser) is simply refresh the community to see if the post has posted yet. If it hasn't, I try again. Around a third of the time you get spinny wheel though, it actually did submit, and just forgot to let you know.

[–] Hildegarde@lemmy.world 3 points 1 year ago

I said I was sorry... Gosh

Resubmitting is the reasonable response to an error that said it failed. Lemmy should add some sort of duplicate message prevention when they have the time to improve the ux.

[–] kezza596@lemmy.world 2 points 1 year ago (2 children)

Does it show up repeatedly on your profile? I used to use that as a way to track double posting on reddit

[–] stephfinitely@kbin.social 2 points 1 year ago

I was wondering the same thing because I've definitely pushed submit multiple times but in my profile it only shows the comments once.

[–] trifictional@lemmy.world 2 points 1 year ago

The problem is a UI thing too. In wefwef for example half the time you go to post something and it says ‘error posting’, your comment actually did post. But sometimes it doesn’t.

I typically go until I see success and then delete any duplicates I left on accident.

[–] Anti_Weeb_Penguin@lemmy.world 2 points 1 year ago

I literally posted the same comment 8 times because of that 💀💀💀

[–] jimmy90@lemmy.world 2 points 1 year ago (1 children)

or you can check your personal history

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