Solved FTB Ultimate server leaking memory slowly

[Niklason]

I got a feed the beast server that runs with 2gb ram and i noticed that i had some weird of memory leakage.
When i start up the server it´s running with around 51% of the memory and that seems normal but when it´s up a longer time it´s taking more and more memory even with no persons online the server and after about 15h it looks like this

with no persons on the server.

So is there anything i can do to fix this or will i be forced to make a restart on the server once a day to keep some memory available?

Yesterday i got something in the console window about memory leakage but since i restarted it i haven't gotten that message at this current restart thats been online for about 15h now.

 

[Greedseed]

I have noticed a small leak in a FTB Ultimate pack as well. First i kindoff pointed my finguere to MCPC+ and or a plugin i installed, but seems its not that, I dont find it a problem since it only klimbs about 50MB a hour max! so tell me if you have anything installed.

But unlike with you, i can run the server for 24hours and still be at 650Meg (launch value) but when at least 1 player gets on it it starts gooing up and up, so send up a list of what you have extra from th Ultimate pack, mcpc ? bukkitport ? plugins ?

 

[Niklason]

At the moment i have only Feed the beast installed with no plugins at all, im gonna install plugins when everything is starting to run smoothly.

 

[Greedseed]

Try this

Optional - these JVM flags may improve performance

• Your start.bat/sh should look something like this (replace 8192 with the RAM the server should be allowed to use, in megabytes):
• java -server -XX:UseSSE=4 -XX:+UseCMSCompactAtFullCollection -XXarallelGCThreads=6 -XX:+UseConcMarkSweepGC -XX:+DisableExplicitGC -XX:+CMSIncrementalMode -XX:+CMSIncrementalPacing -XX:+UseCompressedOops -XX:+AggressiveOpts -Xmx8192M -jar server.jar nogui
• Replace the "6" in -XXarallelGCThreads=6 with the number of cores your server has.

This is from the awsome mod TickThreading, from our awesome nallar.

 

[Niklason]

Im not using any .bat to start the server.

Im hosting a server using http://www.envioushost.com/ and in the server settings there i just choose what jar to start it from so i cant really change anything with a batch file, i can only get acces to all the files from the server using a ftp.

I think the .bat is automatically set up by the company.


I managed to find the Leak message in the console if you guys think that may help.

20.04 14:01:38 [Server] SEVERE The world 533e2b14 (world) has leaked.
20.04 14:01:38 [Server] SEVERE The world 23d2e289 (world) has leaked.
20.04 14:01:38 [Server] SEVERE Detected leaking worlds in memory. There are 4 worlds that appear to be persisting. A mod is likely caching the world incorrectly

 

[Niklason]

Update: I downloaded mcpc+ to my feed the beast server and now it seems more stable than before and don't leak as much memory as before but to be sure i made a scheduled task to restart the server every 3h when no people is online on the server.
Right now i downloaded a plugin to use on my server called mcmmo and im right now config the files for it to support feed the beast. Right now i configured the tools so they work with the mod pack and if anyone else than me want to have mcmmo on their server maake sure you have mcpc+ installed on the server and send me a pm and i could say what version of mcmmo you should have installed(the most recent versions of it is broken if you want to use modded weapons and tools) and i could also send you my configuration files for it to work. At the moment i only have the tools configured and not the blocks but i will also do that sometime when i got time to do that.

 

[Niklason]

Im gonna mark this as solved because i kinda solved it by installing mcpc+ making it more stable but i also still got the restart on the server if no one is online to make sure i always have memory on it.