Server Crash issue after moving to a dedicated host

Discussion in 'Systems Administration' started by irbDylan, Apr 9, 2016.

  1. So I bought a dedicated server last week, running on Ubuntu 15.10 x64. I installed Multicraft and have that managing my starting/stopping/console of the server. It seems to be okay and the server is very fast in comparison to our old shared plan. The only issue is, it randomly decides to crash and restart.

    I'm not sure whether this is an issue with the VPS, Multicraft, Spigot, or Java. Sometimes there is no error at all in console, sometimes it will spam "Slow Permissions" error about 20 times and restart, and then others it gives me this weird error. Sometimes the server will not crash for 12 hours, other times it crashes after 3 hours. It reboots immediately but there's a slight rollback and there's always the chance for data corruption on crashing (and there has been a little bit, but not much).

    Weird Error:
    Code (Text):
    08.04 20:04:55 [Server] INFO java: res_query.c:262: __libc_res_nquery: Assertion `(hp != ((void *)0)) && (hp2 != ((void *)0))' failed.
    More of it surrounding before and after the crash:
    Code (Text):
    08.04 20:04:44 [Server] INFO [Staff] [Moderator] Plat: oh yeah, i dont see the thing
    08.04 20:04:44 [Server] INFO [Staff] [Moderator] Plat: oh yeah, i dont see the thing
    08.04 20:04:46 [Server] INFO Jonnyboy111222 issued server command: /msg Mystic_Beagle so i have this beast gaming computer and i cant get the same minecraft account on
    08.04 20:04:46 [Server] INFO Platina32 issued server command: /a huh
    08.04 20:04:46 [Server] INFO [Staff] [Moderator] Plat: huh
    08.04 20:04:46 [Server] INFO [Staff] [Moderator] Plat: huh
    08.04 20:04:49 [Server] INFO UUID of player daprincessjj is 32a06b95-a36e-4e73-bde3-89ea8b11f508
    08.04 20:04:49 [Connect] User daprincessjj, IP 206.53.78.17
    08.04 20:04:49 [Multicraft] daprincessjj ran command Message of the Day
    08.04 20:04:49 [Server] INFO Creating empty config: /plugins/Essentials/userdata/32a06b95-a36e-4e73-bde3-89ea8b11f508.yml
    08.04 20:04:49 [Server] INFO [✔] [Pioneer] daprincessjj has joined.
    08.04 20:04:49 [Server] INFO CommandBlock at 296,197,159 issued server command: /tppos daprincessjj 7226 42 660 0 90
    08.04 20:04:52 [Server] INFO [Elder] Vaalhalla: welcome!
    08.04 20:04:52 [Server] INFO [Citizen] Jonnyboy111222: welcom
    08.04 20:04:52 [Server] INFO [Owner] irbDylan: &a&oWelcome to &6&oGravityX&a&o! If you have any questions, just feel free to ask! :)
    08.04 20:04:53 [Server] INFO [Citizen] Poseidon [$$$$]: Welcome!
    08.04 20:04:55 [Server] INFO java: res_query.c:262: __libc_res_nquery: Assertion `(hp != ((void *)0)) && (hp2 != ((void *)0))' failed.
    08.04 20:04:55 [Multicraft] Server shut down (running)
    08.04 20:04:55 [Multicraft] Restarting crashed server in 5 seconds
    08.04 20:04:55 [Multicraft] Server stopped
    08.04 20:04:55 [Disconnect] User Kane_Ryu has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User XSonofPoeseidonX has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User irbDylan has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User charlie713 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User CoolDavid64 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User PoisonPint236 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User Zexx1777 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User Platina32 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User Jonnyboy111222 has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User krazycrash has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User daprincessjj has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User Mystic_Beagle has disconnected, reason: Server shutting down
    08.04 20:04:55 [Disconnect] User Vaalhalla has disconnected, reason: Server shutting down
    08.04 20:05:00 [Multicraft] Loading server properties
    08.04 20:05:00 [Multicraft] Starting server!
    08.04 20:05:00 [Multicraft] Loaded config for "Default Minecraft Server"
    08.04 20:05:00 [Server] INFO Loading libraries, please wait...
    08.04 20:05:03 [Server] INFO Starting minecraft server version 1.9.2
    08.04 20:05:03 [Server] INFO Loading properties
    08.04 20:05:03 [Server] WARN ressource-pack-hash is depricated and found along side resource-pack-sha1. resource-pack-hash will be ignored.
    08.04 20:05:03 [Server] INFO Default game type: SURVIVAL
    08.04 20:05:03 [Server] INFO This server is running CraftBukkit version git-Spigot-944aa20-8d16fc0 (MC: 1.9.2) (Implementing API version 1.9.2-R0.1-SNAPSHOT)
    08.04 20:05:03 [Server] INFO Server Ping Player Sample Count: 12
    08.04 20:05:03 [Server] INFO Using 4 threads for Netty based IO
    08.04 20:05:03 [Server] INFO Debug logging is disabled
    08.04 20:05:03 [Server] INFO Generating keypair
    08.04 20:05:04 [Server] INFO Starting Minecraft server on 0.0.0.0:25565
    08.04 20:05:04 [Server] INFO Using epoll channel type

    Random Permissions Issue:
    Code (Text):

    05.04 22:18:18 [Server] INFO suburbannoize issued server command: /back
    05.04 22:18:19 [Server] INFO rljc133 issued server command: /biome
    05.04 22:18:26 [Server] INFO kevin1123kg issued server command: /seen subo
    05.04 22:18:27 [Server] INFO rljc133 issued server command: /jungle
    05.04 22:18:28 [Server] INFO [Citizen] Ivory [$$$]: Litteral, physical pain
    05.04 22:18:32 [Server] INFO [Elder] GG [$$$$]: i ignore chat half the time plus i get in a building zone and just zone out
    05.04 22:18:49 [Server] INFO suburbannoize issued server command: /heal
    05.04 22:18:49 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 35.621ms!
    05.04 22:18:49 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 220.01ms!
    05.04 22:18:49 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 30.289ms!
    05.04 22:18:51 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 37.058ms!
    05.04 22:18:53 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 32.934ms!
    05.04 22:18:55 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 44.156ms!
    05.04 22:19:00 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 50.867ms!
    05.04 22:19:14 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 43.986ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 48.125ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 43.539ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 51.583ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 36.161ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 53.075ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 27.111ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 63.831ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 235.235ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 52.578ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 91.353ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 63.685ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 58.896ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 65.444ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 47.538ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 65.778ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 37.833ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 73.744ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 147.999ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 67.558ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 63.644ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 80.672ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 97.245ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 122.056ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 67.543ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 313.662ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 95.91ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 409.211ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 95.593ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 356.367ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 104.869ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 28.645ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 83.3ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 108.333ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 115.427ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 152.907ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 157.691ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 323.437ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 111.965ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 218.974ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 100.226ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 258.671ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 240.287ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 211.702ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 209.993ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 267.233ms!
    05.04 22:19:19 [Server] INFO [Essentials] Lag Notice - Slow Permissions System (PermissionsEx) Response - Request took over 99.792ms!
    05.04 22:19:19 [Multicraft] Server shut down (running)
    05.04 22:19:19 [Multicraft] Restarting crashed server in 5 seconds
    05.04 22:19:19 [Multicraft] Server stopped
    05.04 22:19:19 [Disconnect] User Kane_Ryu has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User suburbannoize has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User kevin1123kg has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User rljc133 has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User JakSoulbright has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User irbDylan has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Mystic_Beagle has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User CrazyZombieGal has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Gamer_Grampa has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Zexx1777 has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User HuggySandwich has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User jiojojo has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Darnokman has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Klitty has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User thebigclayman has disconnected, reason: Server shutting down
    05.04 22:19:24 [Multicraft] Loading server properties
    05.04 22:19:24 [Multicraft] Starting server!
    05.04 22:19:24 [Multicraft] Loaded config for "Default Minecraft Server"
    05.04 22:19:25 [Server] INFO Loading libraries, please wait...
    05.04 22:19:27 [Server] INFO Starting minecraft server version 1.9
    05.04 22:19:27 [Server] INFO Loading properties
     

    And other times like I mentioned, it will just think it crashed and display stuff like this:
    Code (Text):

    05.04 22:18:18 [Server] INFO suburbannoize issued server command: /back
    05.04 22:18:19 [Server] INFO rljc133 issued server command: /biome
    05.04 22:18:26 [Server] INFO kevin1123kg issued server command: /seen subo
    05.04 22:18:27 [Server] INFO rljc133 issued server command: /jungle
    05.04 22:18:28 [Server] INFO [Citizen] Ivory [$$$]: Litteral, physical pain
    05.04 22:18:32 [Server] INFO [Elder] GG [$$$$]: i ignore chat half the time plus i get in a building zone and just zone out
    05.04 22:18:49 [Server] INFO suburbannoize issued server command: /heal
    05.04 22:19:19 [Multicraft] Server shut down (running)
    05.04 22:19:19 [Multicraft] Restarting crashed server in 5 seconds
    05.04 22:19:19 [Multicraft] Server stopped
    05.04 22:19:19 [Disconnect] User Kane_Ryu has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User suburbannoize has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User kevin1123kg has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User rljc133 has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User JakSoulbright has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User irbDylan has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Mystic_Beagle has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User CrazyZombieGal has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Gamer_Grampa has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Zexx1777 has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User HuggySandwich has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User jiojojo has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Darnokman has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User Klitty has disconnected, reason: Server shutting down
    05.04 22:19:19 [Disconnect] User thebigclayman has disconnected, reason: Server shutting down
    05.04 22:19:24 [Multicraft] Loading server properties
    05.04 22:19:24 [Multicraft] Starting server!
    05.04 22:19:24 [Multicraft] Loaded config for "Default Minecraft Server"
    05.04 22:19:25 [Server] INFO Loading libraries, please wait...
    05.04 22:19:27 [Server] INFO Starting minecraft server version 1.9
    05.04 22:19:27 [Server] INFO Loading properties

    This issue only began when we moved to the dedicated server, and I'm not 100% familiar with Linux/Ubuntu yet. The first issue was today, and I'm only 1 version behind on /version, and has been occuring since about 40 versions ago- but only once we moved to the dedicated host. I've tried disabling the Crash Detection on Multicraft completely, but it still appears to be detecting and trying to restart. I've questioned whether this was the issue as no output other than Multicraft has generally happened, but again I attempted to disable crash detection and still have the same issue. Any suggestions or help would be appreciated.
     
  2. Are you using Oracle Java? That would be the first thing I would update before seeing if it was Multicraft.

    If your using OpenJDK id recommend using Oracle (AKA official Java). Even if it doesn't resolve your issue its still better for performance and stability. Here is a link to a install tutorial: http://tecadmin.net/install-oracle-java-8-jdk-8-ubuntu-via-ppa/
     
    • Agree Agree x 1
  3. MikeA

    MikeA Retired Moderator
    Retired Benefactor

    First use Oracle Java if you're not already like @Zigenzag recommended. Second did you update your system after buying it? Run "sudo apt-get update" and install any updates if they're available then reboot the system. Third what type of disk does your server have? HDD/SSD?

    I've never seen the first error.
     
  4. I am using OpenJDK currently. I'll try uninstalling that and installing JDK 8.

    I have done "sudo apt-get update" multiple times, mostly before installing new packages. My server has a 120GB SSD.

    I'll report back if the issues still persist with the Oracle Java. Thank you :)
     
  5. Alright so it's been around 4 hours now since I switched, and the problem has happened twice. One time it was the slow permissions and the other the weird error again.
    Edit: Just crashed again :( Slow permissions. Could it be something like my CPU gets maxed out or what? I feel like it's Multicraft still for some reason.
     
    #5 irbDylan, Apr 10, 2016
    Last edited: Apr 10, 2016
  6. Possibly corrupted java install / failing ssd?
    Just a guess
     
  7. Well, I have reinstalled Java when switching to Oracle from OpenJDK and still had the same error.

    On another note, since I have access, I am able to host multiple servers. I've setup a vanilla server on the same dedicated server under a different port. I'll be watching to see if both servers crash at the same time. If they do, then it's most likely a machine/java issue. If they don't, it could be a multicraft or plugin issue. I also updated to the latest Spigot version today so I'm up to date again.

    Update: The server crashed, this time there was no slow permissions or error. The second server was completely fine and not lagging at all either. I am going to take the time to update all the plugins and see if that fixes it. I probably should have done this anyways a long time ago.
     
    #7 irbDylan, Apr 10, 2016
    Last edited: Apr 10, 2016
  8. Updated all the plugins and the issue still occurred. No issue with the vanilla server though.
     
  9. Maybe try to run an older version? Like jdk7?
     
  10. I have multiple plugins on the server that require 8 sadly, and pre-dedicated-host I ran them fine, so I would assuming that 8 was installed on there.
     
  11. Crashed again, new error this time before it went down. I feel like it's Multicraft reading these "crashes" wrong.
    Code (Text):

    10.04 13:13:28 [Server] INFO [Citizen] Snow: wb
    10.04 13:13:29 [Server] INFO [Moderator] Missi: wb
    10.04 13:13:32 [Server] INFO GriefPrevention: Mystic_Beagle placed a sign @ PlotWorld: x558, z444;5
    10.04 13:13:33 [Server] INFO __WillieTheKid__ issued server command: /mcmmo
    10.04 13:13:34 [Server] ERROR "Silently" catching entity tracking error.
    10.04 13:13:34 [Server] INFO net.minecraft.server.v1_9_R1.ReportedException: Adding entity to track
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.EntityTracker.addEntity(EntityTracker.java:142) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.EntityTracker.track(EntityTracker.java:81) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.WorldManager.a(WorldManager.java:18) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.World.b(World.java:1015) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.WorldServer.b(WorldServer.java:1121) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.World.addEntity(World.java:1008) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:467) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:463) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.ChunkRegionLoader.a(ChunkRegionLoader.java:474) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.MobSpawnerAbstract.c(MobSpawnerAbstract.java:106) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.TileEntityMobSpawner.c(SourceFile:61) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.World.tickEntities(World.java:1486) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.WorldServer.tickEntities(WorldServer.java:629) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:792) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.8.0_77]
    10.04 13:13:34 [Server] INFO Caused by: java.lang.IllegalStateException: Entity is already tracked!
    10.04 13:13:34 [Server] INFO at net.minecraft.server.v1_9_R1.EntityTracker.addEntity(EntityTracker.java:109) ~[spigot.jar:git-Spigot-944aa20-8cb1b36]
    10.04 13:13:34 [Server] INFO ... 17 more
    10.04 13:13:38 [Server] INFO [T-Mod] CoeJoe_the_Wolf: ummmmmmmmm
    10.04 13:13:46 [Multicraft] Server shut down (running)
    10.04 13:13:46 [Multicraft] Restarting crashed server in 5 seconds
    10.04 13:13:46 [Multicraft] Server stopped
    10.04 13:13:46 [Disconnect] User Kane_Ryu has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Mr_Boop has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User skydoger has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User __WillieTheKid__ has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Missory has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User HunterN17 has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Snowpocalypse has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User creeperasasin55 has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Creeperking476 has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User irbDylan has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Jonnyboy111222 has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User CoeJoe_TW has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User Mystic_Beagle has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User jenpun has disconnected, reason: Server shutting down
    10.04 13:13:46 [Disconnect] User NickNickovski has disconnected, reason: Server shutting down
    10.04 13:13:51 [Multicraft] Loading server properties
    10.04 13:13:51 [Multicraft] Starting server!
    10.04 13:13:51 [Multicraft] Loaded config for "Mod: Spigot"
    10.04 13:13:51 [Server] INFO Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=128M; support was removed in 8.0
    10.04 13:13:51 [Server] INFO Loading libraries, please wait...
    10.04 13:13:54 [Server] INFO Starting minecraft server version 1.9.2
    10.04 13:13:54 [Server] INFO Loading properties
     
     
  12. Not sure if you've managed to fix this but after a crash are you able to post your latest.log file? That'll bypass Multicraft's console view and have the entire server log.
     
  13. The issue was that the server was running out of RAM. I tweaked some settings and it's working fine now. The only place I was able to find that though was buried in the linux log files.