Forge Server Joining Issue

^ Dont look at that, it doesnt include the whole file, you have to use the uploaded file

Same for this one, its too big, mclogs doesnt fit it all - Client Log

Looking now. There are several other issues that aren't necessarily directly causing this, which I'll call out.

https://mclo.gs/3v9JteB#L2608

Client only mod?

https://mclo.gs/3v9JteB#L2605

Significant performance issues. Run a Spark profiler report via the method the bot above specifies.

@Polar bear is this a server that you have been playing on for a while? You talk about it loading before. What is "before". What was the event that defines "before" and "after"? Did you change something?

Not quite, a friend who im playing with added more mods (without telling me) and it was then it started not working, but he said hed rather not remove what he added (though he cant remember what they were)

I can try and run a spark profiler from the console and see how tha tgoes

Yeah ive noticed it mention the client mod, though i cant pinpoint which mod it is

!binary

oh ffs do we not have that set up yet?

# How to perform a Binary Search

A Binary Search is a faster way to find out which mod or mod interaction is causing problems on your server. The brute force way would be to remove (or add) mods one by one, until the problem went away (or appeared). But with a Binary Search, you can achieve the same result MUCH faster.

Start by moving half of your mods out of your mod folder. Put them somewhere safe. Ensure that you leave required libraries behind for the mods that are not removed. Start the server. Does it throw the same error? If so, the mod (or mod interaction) that is causing the issue is in that half. If not, then the mod (or mod interaction) is in the half you removed.

Whichever half is now known to be the cause, put that half in your mods folder and then remove half of THOSE mods, putting those in another folder, separate from the first round of this process. Do the same test again, by starting your server, and identifying if the problem persists.

Continue this pattern until you narrow it down to a single mod (or small set of mods that, when together, cause the problem).

https://devopedia.org/images/article/28/2951.1490520804.gif

Okay, i was able to find and remove the singular client side mod, now just onto figuring out the error

Progress!

Okay so ive gotten past that issue now, new issue (because of course) its timing me out every time i try to join

Here is the spark profile and ill send the client/server log over in a mo
https://spark.lucko.me/MV2KLdCGVY

Server Log

Okay i fixed that too, woo, increased my timeout limit so it doesnt kick me, now all i gotta deal with is the server being over 600 ticks behind, not sure

mcfunctions (datapacks or command blocks) are taking up 2/3rds of your CPU time.

Okay, well it cant be command blocks (id imagine, as there arnt any?) So must be datapacks, is there an easy method to find the culprits or will i just have to rip a couple out and go from there

You'll have to binary search them.

In general, be wary of adding more than a few datapacks. They're EXTREMELY inefficient compared to mods, like easily 100x slower. So anything that is an actual Datapack that is doing more than just like, adding a recipe or something simple, it going to nuke your performance like an alien mothership glassing a planet from orbit.

The tricky thing is that some "mods" are just a datapack with a thin layer of mod paint pasted over it. You can usually tell which these are by checking the Modrinth page and seeing if the supported versions include Forge AND Datapack. I would recommend avoiding those, too.

do you think its worth switching datapacks over to mod versions if it has mod versions avaliable?