Random Restarts

Hi, my server has recently started to do random restarts and I can't figure out why.. Does anyone know what might be causing this? My log files doesn't seems to be up-to-date either.. :/ Don't know where I can upload the old ones either, they're quite big, but if anyone could suggest some page, I'd be more than happy to upload them. I'm getting this crash report though, but I don't understand it.

Code:

---- Minecraft Crash Report ----
// Oops.
 
Time: 05/01/14 12:15
Description: Exception in server tick loop
 
java.lang.NullPointerException: Exception in server tick loop
    at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:282)
    at net.minecraft.server.v1_7_R1.DedicatedServer.a(DedicatedServer.java:228)
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:465)
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)
 
 
A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------
 
-- System Details --
Details:
    Minecraft Version: 1.7.2
    Operating System: Linux (amd64) version 3.2.0-4-amd64
    Java Version: 1.7.0_25, Oracle Corporation
    Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 2442745728 bytes (2329 MB) / 2743336960 bytes (2616 MB) up to 7635533824 bytes (7281 MB)
    JVM Flags: 2 total; -Xms2730M -Xmx8192M
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    CraftBukkit Information:
  Running:
  Failed to handle CraftCrashReport:
java.lang.NullPointerException
    at org.bukkit.Bukkit.getName(Bukkit.java:74)
    at org.bukkit.craftbukkit.v1_7_R1.CraftCrashReport.call(CraftCrashReport.java:20)
    at net.minecraft.server.v1_7_R1.CrashReportSystemDetails.a(SourceFile:74)
    at net.minecraft.server.v1_7_R1.CrashReport.h(CrashReport.java:45)
    at net.minecraft.server.v1_7_R1.CrashReport.<init>(CrashReport.java:33)
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:474)
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617)
 
    Profiler Position: N/A (disabled)
    Is Modded: ~~ERROR~~ NullPointerException: null
    Type: Dedicated Server (map_server.txt)

Code:

# This is the main configuration file for Bukkit.
# As you can see, there's actually not that much to configure without any plugins.
# For a reference for any variable inside this file, check out the bukkit wiki at
# http://wiki.bukkit.org/Bukkit.yml
settings:
  allow-end: true
  warn-on-overload: true
  permissions-file: permissions.yml
  update-folder: update
  ping-packet-limit: 100
  use-exact-login-location: false
  plugin-profiling: false
  connection-throttle: 4000
  query-plugins: true
  deprecated-verbose: default
  shutdown-message: Server closed
spawn-limits:
  monsters: 70
  animals: 15
  water-animals: 5
  ambient: 15
chunk-gc:
  period-in-ticks: 600
  load-threshold: 0
ticks-per:
  animal-spawns: 400
  monster-spawns: 1
  autosave: 0
auto-updater:
  enabled: true
  on-broken:
  - warn-console
  - warn-ops
  on-update:
  - warn-console
  - warn-ops
  preferred-channel: rb
  host: dl.bukkit.org
  suggest-channels: true
database:
  username: bukkit
  isolation: SERIALIZABLE
  driver: org.sqlite.JDBC
  password: walrus
  url: jdbc:sqlite:{DIR}{NAME}.db

Code:

#Minecraft server properties
#Mon Jan 06 17:30:13 CET 2014
generator-settings=
op-permission-level=4
allow-nether=true
level-name=Swecraft
enable-query=false
allow-flight=true
announce-player-achievements=true
server-port=25565
level-type=AMPLIFIED
enable-rcon=false
force-gamemode=false
level-seed=
server-ip=
max-build-height=256
spawn-npcs=true
white-list=false
spawn-animals=true
texture-pack=http\://www.swecraft.net/revival.zip
snooper-enabled=true
hardcore=false
online-mode=true
server-id=unnamed
resource-pack=http\://www.swecraft.net/revival.zip
pvp=true
difficulty=3
server-name=Swecraft
enable-command-block=true
gamemode=0
player-idle-timeout=0
max-players=64
spawn-monsters=true
view-distance=10
generate-structures=true
spawn-protection=1
motd=\u00A76---\=[\u00A7cwww.Swecraft.net\u00A76]\=---

 

Hi, still need help with this.

 

It looks like you just have either too many players online or too many plugins with not enough Server RAM.

Same thing used to happen with my server until I upgraded it and installed more RAM.
If you think that this isn't the issue, try removing plugins that you don't use or check that they are all up to date with stable builds.

 

It's running 16GB RAM and this is also happening when I'm the only person online. I've been running fine before some update with the exact same amount of plugins/RAM. :/

 

rename your plugins folder, then keep the server on for a while. If it doesn't restart it means its a plugin causing the problem. Otherwise there is something else wrong.

 

I will give it a go!

 

Tott3

What was the outcome?

 

RTK was restarting Minecraft every 6 hours to save RAM and clear any memory leak.

I've bumped it up to do that once a week instead. All solved now.