Serious Connection Problem on Bukkit D: Need help.

Hello,
I opened a server on my PC with bukkit in few months ago.My server run flawlessly before.
However, recently my server become very laggy and many friends tell me that they cannot load chunks after log in.They retry a lot ,but still can't.My server shows this error code when they log out.

Code:

17:09:24 [SEVERE] java.net.SocketException: Socket closed
17:09:24 [SEVERE]    at java.net.SocketOutputStream.socketWrite(Unknown Source)
17:09:24 [SEVERE]    at java.net.SocketOutputStream.write(Unknown Source)
17:09:25 [SEVERE]    at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
17:09:25 [SEVERE]    at java.io.BufferedOutputStream.flush(Unknown Source)
17:09:25 [SEVERE]    at java.io.DataOutputStream.flush(Unknown Source)
17:09:25 [SEVERE]    at net.minecraft.server.NetworkWriterThread.run(SourceFile:103)
17:09:25 [INFO] Simon302 lost connection: disconnect.endOfStream

After a long reboot and test,I found that after I install certain plugins, then chunk will not load.
Plugins that I know will cause issue now are : Essentials , Mcmmo ,simplecolour , admincmd
I really want to use these plugins as they are pretty awesome D: .
Anyone have any help/ideas/fix/solution/thought on this problem, please post it. Thanks

 

Make sure the plugins are up to date.

 

Im having this exact problem! I cant find any working solutions anywhere

 

Maybe your internet is slowed / shaped

 

Thats what someone on PMC suggested, but when he makes a server its fine.

 

cray_Z
All plugins are up to date
@-_Husky_-
here is my internet speed

 

Holy shit, thats quick. I get 1mb download and 1mb upload, #australiasshitinternet

 

DANG DUDE UR INTERNET IS FAST! HONG KONG IS BEAST! :O

 

@ -_Husky_-
Any help other from network speed? xd

 

Lol, How about show me your Start.bat
What java version are you running
bukkit /version

 

Code:

@ECHO OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre7\bin\java.exe" -Xmx6G -Xms6G -Xincgc -jar craftbukkit-1.2.5-R1.0.jar
PAUSE

Java 7 64 bit su3
RB bukkit 1.2.5

 

I have had this same issue on multiple servers of good and bad internet connections for months.

 

how do you fix it?

 

If I knew, I'd gladly help you.

Try looking on the JIRA instance to see if it's been raised as an issue - if it hasn't, create one and TnT or another lovely person should be able to help you out and fix it if it is a bukkit programming error causing the issue.

But since bukkit isn't mentioned in the stack trace, it may well be a Vanilla error which you could tweet to jeb_ on twitter. There may be a 'hacky fix' bukkit can implement but it's best to get problems fixed at source.

 

I have been posted this issue on JIRA before.However,they can't find the problem as they can't reproduce the error.It maybe mojang problem ,but I don't have a twitter account and I don't want have have one

 

Well in which case, it unfortunately looks like we're going to be unable to assist you further with your situation.

Since we've reached a resolution (granted, not a desirable one) with your issue, please change the prefix of your topic title to Solved by going to Thread Tools then 'Edit Thread'

 

I don't think it is solved for now.At least, I still can't these plugins

 

I honestly don't think this is a Bukkit or a plugin issue, so we can't do much to help you.

There are no references to org.bukkit or plugin/bukkit related classes in your error's stack trace.

A useful part of the error is "net.minecraft.server.NetworkWriterThread.run(SourceFile:103" which would suggest that it's a vanilla minecraft problem.

 

I will keep this unsolved and wait for some kind of breakthrough later
Be honest, 1.7- server is better than now on lag D:

 

If you're having lag issues....

1. stop server
2. rename server.log to server.log.bak
3. start server
4. connect to it
5. let it run for 5 minutes
6. stop the server
7. upload newly generated server.log to pastebin

Also if you could provide the contents of your server start script, that may help.

 

I have updated my linux server with the latest java JRE 7 version today, the "1.7.0_03"...but nothin i have the same messages errors in my console sometimes, even if the server has 30/500 players..bha,i have 3 worlds on ramdisk(8gb)/(java12bg)on tot of 24 gb CF 1.2.5 racc build...) but even this did not help.. =/ i think that the problem can be generated by some outdated plugins or a native problem of Minecraft or of craftbukkit..

 

Cannot load chunk is a kind of lag?
Anti-virus and Java may affect server and cause lag?
I use AVAST 7 and Java 7 su3 64bit
I'm using the bat from bukkit wiki

Code:

@ECHO OFF
SET BINDIR=%~dp0
CD /D "%BINDIR%"
"%ProgramFiles%\Java\jre7\bin\java.exe" -Xmx1024M -Xms4096M -jar craftbukkit.jar
PAUSE

\
Maybe add more java node may help? like -Xincgc

 

bump D: