Chunk Pregenerator hanging

[coolboy2002]

Hello, thank you for making this tool in the first place.

I installed Chunk-Pregenerator-1.12-4.4.2.jar and ran into the problem that after a while it randomly hangs. The only things I can find back in the logs is a server warning about the ticks being behind (delayed) and the console hanging and showing the task. This happens after a few hours. I can however, still stop the server and restart it and it will go on. The generation is 1250 chunks radius. Help me please :D Thank you.

[Speiger]

@coolboy2002 what type of hanging? Maybe a clip of showing what you mean?

Note: This could be due to chunk cascading where a chunk loads another chunk and that chunk loads another chunk. And chunk pregen can't prevent that, and unless your server dies, this is basically a waiting game, and chunkpregen will check these chunks and skip them if they are properly generated.

[coolboy2002]

I can try uploading a clip tomorrow but it will be a bit hard on ubuntu server 22.04 😅 Basically in the console it constantly generates a new message with how many chunks it has loaded of the total amount of the task, how many hours it has ran etc etc. At some point that will hang.

[coolboy2002]

Happened again. Had the generator running overnight and 2 hours ago it just stopped and now it doesn't continue on.

[coolboy2002]

Okay apparently it seems to hang sometimes when it's giving the delay warning of the ticks.

[Speiger]

@coolboy2002 yeah that actually validates my point of it being stuck in chunkcascading. That isn't a bug in chunkpregen but a bug inside minecraft they fixed in 1.13-1.14

But Chunk Pregenerator accounts for these and pauses to not kill the server and makes sure to save frequently so if the server crashes that you won't be stuck forever^^

(This is by the way why you want to pregen your world because since the worldgen is deterministic, think of what would happen if a player loaded said chunk)

[coolboy2002]

Sorry man, I did not know this. Thank you so much for explaining. So I did restart the server a few times when it "hanged". Is that a problem or is it fine?

[Speiger]

@coolboy2002 it should be fine. Though there is always a chance that this may cause chunks to not generate properly due to it being saved in a weird state. But that should be always only 1 chunk at most.

Chunkpregen always tries to account for that though and makes a algorithmic check if it could have been that way. If you want to be 100% sure that nothing happend. Simply run a pregen after that but instead of using "Fastcheckgen" use "normal gen" instead. (fastcheck is the default if you don't put any in)

I wouldn't use normal gen by default but as a secondary check because it skips chunks very slowly and is more there to find mistakes than anything else.

[coolboy2002]

Okay, and does Chunk Cascading slow the process down of loading chunks? As it hangs on 23h as of right now and will I really have to do another chunk pregen as I am trying to setup a server and rather hope it could be done quick. Also, is it possible to prerender Galacticraft Planets?