Repeated Crashes, Server goes unresponsive

Discussion in 'Bukkit Help' started by kyle0440, Aug 8, 2012.

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    kyle0440

    OS: Windows 7 Architecture: x64
    Java Version: java version "1.7.0_05" Java(TM) SE Runtime Environment (build 1.7.0_05-b06) Java HotSpot(TM) 64-Bit Server VM (build 23.1-b03, mixed mode)
    Wrappers: Remote Toolkit (Same problems without though) CraftBukkit Build: 2325 (but this has been happening since 2267, the first 1.3 build)
    Plugin list: http://pastebin.com/VFueMNVQ

    Errors/Problem: None, the server just goes totally unresponsive seemingly randomly. Sometimes it can be stable for hours, then suddenly players are disconnected, and the console will not respond to commands. Java.exe must be ended in order to restart the server. Sometimes the server will only stay online for 15 seconds, sometimes it'll be good for several hours. I have noticed though that crashing happens sometimes when new members join for the first time, but not always. I have tried removing some plugins that run scheduled tasks such as EndReset, thinking that a scheduled task might be triggering the crash, but I could not isolate the source of the problem. I have also been updating plugins regularly, and checking all of their bukkitdev pages for tickets & comments regarding crashes. I found that one was causing a tick loop exception, which was fixed in an update which I put on.
    I also ran the /timings commands, but i'm not sure if that was any help. - http://pastebin.com/y08VKH7x


    Members are beginning to quit and I am beginning to get fed up. Does anybody have any ideas? Any help would be greatly appreciated!

    UPDATE:
    The console sometimes spams about 5-10 "Read Timed Out" messages, along with some "Connection Reset" messages on a crash.
     
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    kyle0440

    Still no solution to this. Does anybody know of any plugins or issues that cause this?
     
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    Max098

    YES! I have the exact same problem. The server For me typically goes a couple hours but sometimes as short as a half hour, and yes it completely locks up. The console doesn't respond to any text, so u have to "X" it out to stop it, and u get kicked of online and u just get the timed out error. No messages from the console otherwise. Right now I reinstalled the server (just the bukkit portion, I copied and pasted my plugins and worlds over) to see if it got messed up. Im letting the server run overnight to see if it somehow fixes it... I let u know if it does, but please let me know how you fare or if anyone has other suggestions, anything is much appreciated :)
     
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    kyle0440

    Ok thanks, I've looked into it and it seems to be a plugin - perhaps we could compare common plugins?
     
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    Max098

    Ran the server overnight - lasted longer than it normally did but crashed after about 6 hours, with the same symptoms described. But you found a lead? Aweseome, Here is a list of plugins that I use - most are the closest to up-to-date:

    BOSEconomy
    Chestshop
    Citizens
    Essentials
    Essentials Chat
    EssentialsProtect
    EssentialsSpawn
    Itemstay
    Modifyworld
    Multiverse-core-2.4
    PermissionsEX
    SimpleRegionMarket
    TelePads-1.4.1
    Timefold
    Vault
    VoxelSniper
    VoxelUpdate
    WorldEdit
    Worldguard-5.5.2
    Znounce
    I did use Dynmap but I got rid of it when this started arrose - i was thinking it was maybe a cause. While i still have the problem, Dynmap uses alot of resources, and not many people on my server use it anyway, so Ill keep it out. Though it could perhaps be the problem if there is some straggler-file hidden somewhere else, though its just a guess :p

    Hopefully this list helps you or anyone else with this problem! Let me know what you find ^.^



    UPDATE: Looking at the plugins we share, for some reason I want to put money on Multiverse, which is a shame cause I rely on it lot. Let me know if u have any other suggestions, but I'm going to try to remove the plugin and see how it goes.
     
  6. Offline

    kyle0440

    Yeah, we share Modifyworld, Multiverse-core, PermissionsEX, Vault, VoxelSniper, VoxelUpdate, WorldEdit, WorldGuard
    I also used to use dynmap, but it broke, so I'm waiting on that.
    However, I also use ShowcaseStandalone, which seems to be similar to Itemstay, and TelePads i'm assuming is similar to ButtonWarp.

    I was on SkitScape's server the other day, and it seemed to be having similar, albeit less frequent issues of the same type. They also use Multiverse, I believe.

    I am going to try to remove the Voxel plugins next.
     
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    Max098

    The server still crashes not long after removing multiverse, going to try to remove the Worldguard and Worldedit. If not that ill just keep going down the list.
     
  8. Offline

    kyle0440

    This is preliminary, but it seems as though unloading VoxelSniper and VoxelUpdate has stabilized the server. It's been running for a few hours, and lag is near gone.
    I will update later.
     
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    Xmillsa

    I can tell you there is nothing wrong with VoxelSniper(I use it myself), I can't speak for VoxelUpdate.
    I also use multiverse 2.4, core, nether, portals, signs.

    So out of the plugin list above I use: (These all run stable for me)
    Modifyworld
    Multiverse-core-2.4
    PermissionsEX
    Vault
    VoxelSniper
    WorldEdit 5.4
    Worldguard 5.5.4

    You can find worldedit and worldguard dev builds here if you want to test them: http://build.sk89q.com/

    Sorry I cant help more than that.
     
  10. Offline

    kyle0440

    So this brings the suspect list to:
    • VoxelUpdate
    • WorldEdit & WorldGuard (Out of Date?)
    • ButtonWarp
    • ShowcaseStandalone/Itemstay

    Bad news, it just crashed again.
    VoxelUpdate was unloaded, and I updated WorldEdit and WorldGuard.
    However, it is a LOT more stable without VoxelUpdate, so try that.

    EDIT by Moderator: merged posts, please use the edit button instead of double posting.
     
    Last edited by a moderator: May 27, 2016
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    Max098

    awesome ill give that a shot at let you know how it goes on my end.
     
  12. Offline

    Max098

    Its been over a day straight the server has been running now and removing voxelsniper and voxelupdate seems to be doing the trick. If it does the crash again ill let you know but as of now its looking like that was the problem!
     
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