Bukkit suddenly laggy/resource hog.

Discussion in 'Bukkit Help' started by Freelancer852, Mar 3, 2011.

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    All of a sudden today my server has suddenly become a HUGE resource hog and extremely laggy. I was all fine until a reboot, nothing out of the ordinary happened but all of a sudden the server started eating up all available memory and taking up way more processor percentage than usual.

    Chat messages are taking as long as a minute to show up after sent, sometimes longer. Same goes for commands registering... I've tried builds 440 and 485, both are doing the same thing. I've also tried disabling ALL plugins and deleting the lib folder so those files would be re-downloaded, nothing helps.

    Heck, I tried copying my Bukkit server to a different server and running it there. Same problem, so it's obviously some issue with my installation here...

    I've been running the server with the following:
    IF /I "%PROCESSOR_ARCHITECTURE:~-2%"=="64" "%ProgramFiles%\Java\jre6\bin\java.exe" -Xms2048M -Xmx2048M -jar "%~dp0craftbukkit-0.0.1-snapshot.jar"

    Tried changing Xms and Xmx to values from 1024 - 4096, also not helping...
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    Sounds like a plugin problem.
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    Visit the link in my signature, update your post with all the requested information.

    And read the stickies in the future.
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    Sorry, hadn't slept for over 24 hours when I posted the OP. Didn't register to read any stickies.

    I'm running:

    Windows 7 Professional - 64 Bit

    java version "1.6.0_23"
    Java(TM) SE Runtime Environment (build 1.6.0_23-b05)
    Java HotSpot(TM) 64-Bit Server VM (build 19.0-b09, mixed mode)

    Tried Bukkit builds 440 and 485.

    The plugins I've been using are:
    Permissions (2.5.1)

    As previously stated, I've done pretty much every combination of starting the server I could think of to try and track down where the problem is. When all plugins are disabled the server still has issues.
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    OMG Thank You! Someone who has the same problem!
    I woke up this morning played in it with a few friends left it running EVERYTHING is going smooth. Have things to do in the afternoon and now I restart the server and everything goes to shit. Processor is peged at 100% and memory is higher then normal. Also, chat is laging 35seconds behind if 2 or more people are in the server. (Blocks not breaking or coming back after broken, the normal lag)

    Windows Vista 64bit
    and the only mod that I have that the guy above has is WorldEdit but I have tried disabling all addons beside Bukkit and it still is having the same issues! I have re-downloaded minecraft server also. Same results. The only way I can have more then 1 person in the server without it lagging is if I run it without bukkit
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    I've been testing this, started a new 440 Bukkit server from scratch, all was going well... Added my old 'world' directory, same issues.

    Deleted player data from 'world\players' and it seemed to be better (obviously everyone lost the items they had and restarted at global spawn). Moving into some chunks still seems to cause the lag and it won't go away until you move into another chunk and logout/in.

    Most chunks on the server seem to be fine, it's just some specific chunks...
    --- merged: Mar 4, 2011 6:35 AM ---
    Confirmed, seems like the following area/chunk sets it off to be really laggy/buggy:

    Entering this area will cause players to start receiving text chat messages 30+ seconds later, and placed blocks dissipate after a bit (I assume because the server isn't picking up that they placed anything because of lag). Moving out of this area and re-logging outside of it will fix it for the client.

    Is there any way to re-generate this chunk on the server? Or make the server run some sort of chunk, integrity check? This happens regardless of if plugins are installed or not.
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    dark navi

    There are programs (MCEdit?) that let you browse and edit a world out of Minecraft. Also, hi Freelancer :D
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    I'm not sure MCEdit is going to know if a chunk is f'ed up. Although you might be able to rebuild it? Not sure.
    I took out all of my player.dat files and restarted the server (still running 440 but will be updating in a bit) My partner's GF is in surgery atm so I can't do any tests but so far the CPU has dropped but I won't know for sure until another person connects.
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    I have this problem too. It started when one of my admins decided to set a huge cuboid to block id 6 (sampling) witch caused item spam. I hope for an fix.
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    Any update on this? This is a huge problem...
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    I'm not sure if this has been solved or not, but for other server admins out there looking for answers, here's my fix. Use WorldEdit to remove drops in the particular chunk. Although there were no drops we saw that could have created the problem, it seemed to do the trick.
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