Bukkit spawns so many processes

Hello.

I have like 15-20 Bukkit processes. Why does it happen and how to fix it?

 

Killall java

 

I need to know the reasons for this and not just kill them . That won't help me.

 

Well we need more information than just "Bukkit haz l0ts of process thingies". That won't help us help you. Things that are nice to know when trying to help someone with an issue like this:

• Operating system
• If you are using a startup script or a control panel
• Does it happen even when you restart the computer/server and start a new Bukkit process

 

Okay, sorry for the few details. The OS is Debian 6 with Java 6 running and we use no control panel or start scripts. We are just starting Bukkit (latest dev-build) with a screen session. It happens everytime: if there are no players, one player, 20 players (max). And it happens too if there is no plugin loaded.

 

wait no panel and no start up scripts then how you starting bukkit

 

Type "ps au" in the terminal and post the results here.

 

I start the server with the command 'screen -S minecraft java -jar ./craftbukkit.jar'. I do not have any extra start scripts or control panels.

The line of 'ps au' for minecraft:
minecraft 4838 41.5 19.5 1622400 821272 pts/1 Ssl+ 18:36 2:09 java -jar ./craftbukkit.jar

Also I have a high load every time someone joins the server.

 

I thought it spawns so many processes, you only posted one line.

 

I think the others are child processes of the main thread, so they are just listed as one.

 

then give us a ps -auf
this shows the child-processes in a funny tree'd view
could there be a faulty chron'd start or errant re-start script (maybe a leftover from a faulty experiment or sth. like that?)

 

No, there is nothing like a script for auto-restart or similar. I had never something like that on the server, not even as a test.

ps -auf doesn't show more (child)-processes too. I made a screenshot of htop with tree-view: http://puu.sh/1uXwL

 

htop shows the THREADS of the java-process within the tree-view... those aren't single processes. If you analyse firefox with htop-tree'd view it look similar

So I'd say your server is up and okay

 

But what could be the reason for high CPU load on logins by players?

 

I can just say your process/threads-thingy doesn't look suspicious...

How about more specs? hardware, ram, connection?
ps -au (complete pastebin)
free -h
maybe netstat -an (top-part)

bukkit versions, plugins...