java.lang.OutOfMemoryError: unable to create new native thread

[Tombikos]

Title: java.lang.OutOfMemoryError: unable to create new native thread

Version: 3.0.3/3.0.4

OS: Linux Gentoo

Java Version: 1.6.0_31

Description of Problem:

After a while is server running a error show up in console and server becomes 'unjoinable' - nobody can join (but server is still running, i can operate throught console...). I've got 25 slot server and here are some stats (ram is not overflooded):

ram: 2216 MiB / 2560 MiB

procesor: 99%

This is very common at my server, these errors sometimes changes a bit, another one that happend right after restart can be found here: http://pastebin.com/P5Q2A5f7

Error Messages:

nothing

Error Log:

2012-06-26 18:13:41 [sEVERE] java.lang.OutOfMemoryError: unable to create new native thread

2012-06-26 18:13:41 [sEVERE] at java.lang.Thread.start0(Native Method)

2012-06-26 18:13:41 [sEVERE] at java.lang.Thread.start(Unknown Source)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.NetworkManager.d(NetworkManager.java:252)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:176)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.Packet254GetInfo.handle(SourceFile:16)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:57)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:61)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)

2012-06-26 18:13:41 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-06-26 18:13:41 [sEVERE] Unexpected exception

java.lang.OutOfMemoryError: unable to create new native thread

at java.lang.Thread.start0(Native Method)

at java.lang.Thread.start(Unknown Source)

at net.minecraft.server.NetworkManager.d(NetworkManager.java:252)

at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:176)

at net.minecraft.server.Packet254GetInfo.handle(SourceFile:16)

at net.minecraft.server.NetworkManager.b(NetworkManager.java:234)

at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:57)

at net.minecraft.server.NetworkListenThread.a(NetworkListenThread.java:61)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:556)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

[Torezu]

I'm not familiar with Linux - is that a 32-bit OS? If so, you may be running out of addressing space for the RAM you're trying to use.

[Tombikos]

i am not sure, i use server hosting company. RAM usage is always under the limit, even when i lower slots to 22 (lower server load).

[Tombikos]

Any help?

[Tombikos]

is it possible that some user circuit or some user built machine may cause it?

[Torezu]

Definitely. RAM usage can peg if something starts dumping crap all over the ground.

[Tombikos]

Any idea how to find that machine? Or is here around some script/plugin to stop this machines?

[Torezu]

The only way I know of is to see where you are when the server starts chugging, and try to figure out which chunks just loaded. Otherwise, just type "/remove items -1" from the in-game console and see if it clears up the lag. If it does, something's dumping items. It will also tell you how many items it removed.