Crash on /forge generate command use

VallenFrostweaver commented 6 months ago

Describe the Bug:

Using the command "/forge generate ~ ~ ~ 1000" I was trying to generate chunks on a server. It hangs over 600 but not yet at 700 chunks and then crashes.

How Can We Reproduce the Bug:

Put modpack on new server.
Whitelist/OP as appropriate.
Use command: /forge generate ~ ~ ~ 1000
Crash after a minute of hanging.

Expected behavior:

No crashes and chunks to be generated to allow pregenerated exploration.

If Applicable, Add Screenshots or Video to Explain the Bug:

n/a

Crash Report or Game Log

Link to crash report

Please complete the following information:

Have you checked if your bug has already been reported, including closed issues? : Yes
Have you added or removed any mods, and if so, which?: Added Discord Integration mod
Modpack Version Number : 1.0.1.0
Is OptiFine installed? : No
Does this issue affect Server, Client, or Both? : Both

Additional context:

NOTE: I continued doing this and found that repeated attempts got past this point but it proceeded to crash as I increased the value. It got to 1000 so I increased it to 1500 and it then crashed just over 1200.

JoelZBub commented 6 months ago

Thanks, Vallen, for the report.

Currently the pack is heavier on RAM usage than we'd like. Generikb has some mod devs working on some things to lower that.

Here are a few things that I discovered while pre-generating server chunks:

I found that we needed a minimum of 10GB to successfully pre-generate the Overworld.
forge gen is pretty clunky. I dropped https://www.curseforge.com/minecraft/mc-mods/world-pre-generator in and used that instead, as it has a server config file that lets you select SERIAL or SEMI_PARALLEL generation and how many parallel tasks are done at once. It also allows pausing generation, and doesn't try to regenerate chunks that have already been generated in case of a crash
You should set "max-tick-time" in the "server.properties"-file to -1 to prevent crashes, because the tick time gets too long while generating chunks. This will keep the server watchdog from just crashing the server if there is a hang, but instead let the server catch up to itself.

We'll keep working on trimming down the server resources needed. Keep an eye out for the next update. It has server-related fixes coming.

VallenFrostweaver commented 6 months ago

Those are some great helpful tips and really useful information. Thanks so much for the pack and help Joel!

JoelZBub commented 5 months ago

This is just a note for users that may be having this same issue that World Pre Generator mod mentioned earlier is included in the pack from version 1.0.2.0 and newer.

JoelZBub commented 4 months ago

This seems to have been sufficiently resolved. Closing

Generik-Packs / UG200_Public