Laggy Server

Hey guys, I recently just started to use Bukkit in order to make a survival island server for me an my friend. I hosted the server and played Minecraft on the same computer, and there was no problems. I have 4GB of ram, and the server used to be able to run smoothly. The plugins I have are Skillz, MagicCarpet, Creature Spawner, HeadBlocks, MultipleHomes, Prefixer, SpawnX, and ThunderTools. I had all those plugins without any of lag, but just recently it started to lag. My internet is fine, and I asked my friend to connect to my server with me having nothing open but just the CMD. I looked at the CMD to see if there was any errors, but there was none. Here is what my RUN.bat looks like:


Again, everything was fine until yesterday. I also run the server on Windows 7 Home Premium 32-bit.

 

Did someone set off a bunch of tnt or change a large amount of blocks in one area? Also, does the lag go away if you move to another area?

 

No, no one set off any thing that devastated anything and no, the lag is persistent everywhere you go. Also, before the lag, when you logged on all the chunks were instantly loading but with the lag, it takes a while for chunks to load.

 

@echo off
java -Xms1024M -Xmx3096M -jar craftbukkit-0.0.1-SNAPSHOT.jar nogui


try that

 

So my Run.Bat should look like this?
@ECHO OFF
java -Xms1024M -Xmx3096M -jar craftbukkit-0.0.1-SNAPSHOT.jar nogui
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre6\bin\java.exe" -Xincgc -Xmx1G -jar craftbukkit-0.0.1-SNAPSHOT.jar
PAUSE

 

in the .bat file you use to run the server

 

No, nothing changed.

 

argh. Im not sure how to help sorry

 

Just making sure, my RUN.bat (What I use to start up server) should look like this?:
@ECHO OFF
java -Xms1024M -Xmx3096M -jar craftbukkit-0.0.1-SNAPSHOT.jar nogui
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre6\bin\java.exe" -Xincgc -Xmx1G -jar craftbukkit-0.0.1-SNAPSHOT.jar
PAUSE


I don't know if this helps but my version and architecture of my java is:
java version "1.6.0_25"
Java(TM) SE Runtime Environment (build 1.6.0_25-b06)
Java HotSpot(TM) Client VM (build 20.0-b11, mixed mode, sharing)

 

no

Code:

@ECHO OFF
java -Xms1024M -Xmx3096M -jar craftbukkit-0.0.1-SNAPSHOT.jar nogui
SET BINDIR=%~dp0
CD /D "%BINDIR%"

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Okay, I edited my RUN.bat to what you told me, and now the server won't run. CMD would start and quickly close.
Just curious, what was that supposed to do?

 

its probably saying it cant use craftbukkit-0.0.1-SNAPSHOT.jar

Code:

@ECHO OFF
java -Xms1024M -Xmx1560M -jar cb.jar nogui
SET BINDIR=%~dp0
CD /D "%BINDIR%"

change craftbukkit-0.0.1-SNAPSHOT.jar to cb.jar
and use that above

 

Alright, I tried what you told me to and yet I still have lag. I don't see why it can't use craftbukkit-0.0.1-SNAPSHOT.jar if everything was fine earlier.

 

you can i must have made a spelling mistake..
it doesnt matter what its called :/
sorry i couldn't be more help!

 

I did everything you asked, and I can run the server, but the lag still persists.

 

it might be because of your internet speed + CPU + ram..
there could be literally infinite reasons its slow

 

Try changing the name of the world=YOURWORLD inside of the server.properties file. That will generate a fresh world for you to test on. Don't worry, it won't delete your current world. See if the lag still happens.

 

good idea

 

Nope, still laggy.

Still need help please

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

My server properties is :
#Minecraft server properties
#Sat May 14 12:26:34 CDT 2011
level-name=world
hellworld=false
spawn-monsters=true
online-mode=true
spawn-animals=true
max-players=20
server-ip=
pvp=false
level-seed=
server-port=25565
allow-flight=false
white-list=false
spawn-protection=16
plugin=CreatureSpawner
plugin=HeadBlocks
plugin=Prefixer
plugin=MultipleHomes
plugin=SpawnX
plugin=MagicCarpet
plugin=ThunderTools
plugin=Skillz

Any help please?

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Me and 2 friends had the EXACT same issues, the server was working fine for a few days and it started to lag like crazy, we tried new server, no plugins and all kind of stuff but nothing would work...

 

Alright...
You could try hosting on a different computer. For some odd reason Bukkit would experience really bad lag in a computer with Core 2 Duo, 2G RAM, and 8600M GT on Win XP 32 bit even with just 2 people. On the other hand, I ran the bukkit server without any lag at all on the laptop with Celeron M (yeah, back from 2003 AND it is not Pentium), 1.5G RAM, and Intel 900 Graphics with same number of people. I don't have explanation for this but it may be that java files got messed up in networking portion.
Also try the vanila version of the minecraft server. See if it can run minecraft flawlessly.

 

So u're saying this only happens in PCs with Core2Duo? Any way to fix this? Simulate a 1core PC maybe or something? Cause it also happens in a Core2Duo with 4GB RAM...

 

press CTRL + SHIFT + ESC to bring up task manager.
go to processes, find the minecraft server/java
set the affinity to 1 core.
Not sure if that will help though

 

iPhysX that didn't work and BKDO, I will try running it on another server later. Thanks for the replies!

 

Maybe you forgot to tell us that you made an update from 740 to 766?
Cause that was my trouble I had after updating.

Just try out following:

1. Backup your /world and /plugins Folders.
2. Delete all from Server root dir expected the snapshot and the launch.bat
3. Run launch.bat
4. Stop server

Then redefine you configurations etc.
Copy Paste backupped world & plugins folders.

Run the server and it should be fine.

If you made no update, and the server just crashed laggy like that, that may have too many issues...

EDIT:\ Bad coded Plugins are the death for any Server too. Try by removing the last one you've installed.

 

Why did you suggest him to allocate 3gb of his ram on a x86 os?
try this run script:

Code:

@ECHO OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre6\bin\java.exe" -Xincgc -Xmx2G -jar craftbukkit-0.0.1-SNAPSHOT.jar
PAUS

Since x86 OS only uses 3,5gb of Ram (even if you have 4gb installed). Because a x86 (or 32bit) OS can only address up to 3,5gb ram. And your plugins should take that much RAM anyways..

If this doesn't work try to work out what you have changed right before the lag started.
Installed any plugins?
Changed anything related to java?

You could try to copy the folder containing your server files and dont touch the original folder.
Delete all plugins in the copied folder and run the server from the copy.
Still lagging? If the lag stopped you can try to copy 1 by 1 plugin back into the copied server folder, run the server and check for lag.

Edit: Btw, you have to rename the .jar back to craftbukkit-0.0.1-SNAPSHOT.jar or replace the name in the run script.

Edit2: another question, are you using hamachi?

 

hamachi... would probably cause lag for other players imo

 

The Core2Duo is not the problem...
I've tried running the server from scratch, without any plugins, but the lag persisted, we haven't made any change: We played fantasticly well, we close the server, and a couple hours later, we start the server again, and boom, lag... We tried making a new server after the lag, but it just wouldn't go off...
Yes, we are using Hamachi, but we've always been using it and we don't have lag without using bukkit, and when we didn't have lag, we were using Hamachi as well, so that's prolly not the problem at all.

 

I tried your code, but it said:
Could not reserve enough space for object heap
Could not create the Java virtual machine.

Also, I am not using hamachi.
I also started with build 766 from the start.