FTB Direwolf20 1.5.2 Server problems!

[jamie payne]

Hey guys!

me and my friend run a server with the Direwolf20 1.5.2 Modpack!

The problem is every so often the server crashes or it Closes!

The server has 3GB Ram and stays around 1.50GB ram usage as normal!

The CPU normal stays low around 10 - 25

but suddenly the server crashes and the cpu is at around %60.

I get this error message.

http://pastebin.com/GaU1YAgg

2013-08-04 16:51:28 [SEVERE] java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl2
2013-08-04 16:51:28 [SEVERE] at net.minecraft.world.World.func_72914_a(World.java:4648)
2013-08-04 16:51:28 [SEVERE] at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:814)
2013-08-04 16:51:28 [SEVERE] at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
2013-08-04 16:51:28 [SEVERE] at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:716)
2013-08-04 16:51:28 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:600)
2013-08-04 16:51:28 [SEVERE] at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
2013-08-04 16:51:28 [SEVERE] Caused by: java.lang.ClassNotFoundException: net.minecraft.world.CallableLvl2
2013-08-04 16:51:28 [SEVERE] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:273)
2013-08-04 16:51:28 [SEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-08-04 16:51:28 [SEVERE] at java.lang.ClassLoader.loadClass(Unknown Source)
2013-08-04 16:51:28 [SEVERE] ... 6 more
2013-08-04 16:51:28 [SEVERE] Caused by: java.lang.OutOfMemoryError: PermGen space
2013-08-04 16:51:28 [SEVERE] at java.lang.ClassLoader.defineClass1(Native Method)
2013-08-04 16:51:28 [SEVERE] at java.lang.ClassLoader.defineClass(Unknown Source)
2013-08-04 16:51:28 [SEVERE] at java.security.SecureClassLoader.defineClass(Unknown Source)
2013-08-04 16:51:28 [SEVERE] at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:262)
2013-08-04 16:51:28 [SEVERE] ... 8 more
2013-08-04 16:51:28 [SEVERE] Encountered an unexpected exception NoClassDefFoundError
java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl2
at net.minecraft.world.World.func_72914_a(World.java:4648)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:814)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:320)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:716)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:600)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)
Caused by: java.lang.ClassNotFoundException: net.minecraft.world.CallableLvl2
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:273)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 6 more
Caused by: java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(Unknown Source)
at java.security.SecureClassLoader.defineClass(Unknown Source)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:262)
... 8 more
2013-08-04 16:51:28 [INFO] Stopping server

This is very annoying as it does it often!
i was looking into this and apparently its something to do about PermGen Space.
i asked the host if they could higher our PermGen space and they didn't know what it was :?

So now i come to you to help me with my problem.

i dont know if this is in the right section but if its not can a moderator move it to the right one please!

if i missed out any infomation you need please tell me and i will update the post!

Thanks

- Maved!

 

[Pollie]

i have the same problem, i also do not know how to chege that mem. i am using multicraft.

 

[xSeaBiscuit]

Yep thats a permgen error. My server dosen't use Multicraft so I can't help you but if your running on a script here's what I did to fix it. I added these lines -XXermSize=256m -XX:MaxPermSize=512m[DOUBLEPOST=1376574212][/DOUBLEPOST]ha ha the thats

:P

 

[Pollie]

i cant find that script anywhere in multicraft so i do not know how to add this :S