Entity already tracked error - join the discussion!

If you notice a lot of ‘Entity already tracked’ errors on your Bukkit server, please help us troubleshoot this problem by answering the following questions:

Example error:

Code:

[WARNING] Failed to handle packet: java.lang.IllegalStateException: Entity is already tracked!
java.lang.IllegalStateException: Entity is already tracked!
at net.minecraft.server.EntityTracker.a(EntityTracker.java:72)
at net.minecraft.server.EntityTracker.a(EntityTracker.java:62)
at net.minecraft.server.EntityTracker.a(EntityTracker.java:51)
at net.minecraft.server.WorldManager.a(WorldManager.java:17)
at net.minecraft.server.World.c(World.java:766)

General System information
What operating system are you running the server on?
Is it a 64 bit or 32 bit version of the OS?
What version of Java are you running (java -version to find out)?
How much RAM do you have on the system?
What are the specs of the server’s CPU?
What network card does the server have?
What network card drivers is the server using?
What firewall or other security software is running on the server?
Is your server directly connected to your router or on a network?
What is the network connection to your server? (1,5,10, 100 mbit .. etc?)
Are you hosting on a VPS / Cloud or dedicated hardware?
What is your hosting provider (if applicable)

Minecraft Server Information
What version of CraftBukkit are you running (output of /version in-game - please provide the full version string)?
What plugins (and their versions) is your server running?
How much RAM do you allocate to the server process?
What is the launch line you use to start the server?
Do you experience high CPU load or paging?
How many users are actively using your server when you experience the errors?
What are your users doing around the time the error occurs?
How large is your map?
Has your server recently crashed unexpectedly?
Do you still have these problems if you run your CraftBukkit server without plugins?
Do you still have these problems if you run a Minecraft server without CraftBukkit?

If your world isn’t incredibly large, would you mind giving us a copy of your server setup to work with? If so, provide a link or PM me - it should include your entire server setup: world, plugins, configuration etc.

Please only respond to this thread with relevant information. Anything else will be deleted.

 

General System information
What operating system are you running the server on? Windows 7 Ultimate
Is it a 64 bit or 32 bit version of the OS? x64
What version of Java are you running (java -version to find out)? 1.6_24
How much RAM do you have on the system? 8gb
What are the specs of the server’s CPU? Core2Quad 3.8ghz
What network card does the server have? Intel PCI-e or onboard marvell (happens with both)
What network card drivers is the server using? not sure atm. Latest from windows updates
What firewall or other security software is running on the server? Windows firewall
Is your server directly connected to your router or on a network? On a gigabit network behind a dlink router
What is the network connection to your server? (1,5,10, 100 mbit .. etc?) 100mb down / 5mb up
Are you hosting on a VPS / Cloud or dedicated hardware? Dedicated Hardware
What is your hosting provider (if applicable)

Minecraft Server Information
What version of CraftBukkit are you running (output of /version in-game - please provide the full version string)?

Code:

git-Bukkit-0.0.0-706-gf53e007-b740jnks (MC: 1.5_02

What plugins (and their versions) is your server running?

Code:

Plugin List: "AdminMode [0.4]" "AutoPlant [1.6]" "AutoReplace [1.9.1]" "AutoSave [1.3.0]" "ServerAutoStop [1.0.0]" "Bandages [1.2.3]" "BankAccount [0.4]" "BigBrother [1.8-SNAPSHOT]" "BorderGuard [3.1]" "BuyAbilities [0.8.8]" "Cleaner [1.7]" "CmdBlocker [1.1]" "Commands Logging [1.0]" "CommandBook [1.4.3-customized]" "CommandHelper [2.0.2]" "SignColours [0.3]" "CraftBookCommon [nightly]" "CraftBookMechanisms [nightly]" "CraftBukkitUpToDate [2.5.1]" "DropBonus [2.5]" "dynmap [0.15]" "FenceStack [1.13]" "FoundDiamonds [1.666]" "groupPvP [0.4]" "HeroBounty [1.7.7]" "HeroChat [4.10.3]" "HeroicDeath [1.8.1.156]" "HeroSneak [1.2.2.51]" "HTTPConsole [0.2.1]" "iConomy [4.65]" "Interesting Places [1.6]" "IPGet [0.4]" "ItemId [1.12]" "Landmarks [0.1]" "LimitSpawnsLite [1.01]" "LocalShops [2.2.1]" "Lottery [0.4.2]" "LWC [2.31]" "LyTreeHelper [2.2RC2]" "MagicCarpet [1.5.5]" "mcbans [2.9]" "MCDocs [9]" "MidiBanks [1.3]" "MinecartManiaCore [1.1.6]" "Minequery [1.5]" "MonsterHunt [1.0.2]" "MultiInv [1.5.2]" "MultiVerse [1.6.3]" "MyHome [1.9.4b]" "NaturalGiants [1.3]" "NoCheat [0.9.6]" "Parties [1.2.2]" "Permissions [2.7.2]" "PermissionsPlus [1.6]" "PetitionPlugin [1.34]" "PlugMan [1.3]" "PumpkinDiver [0.16]" "PvPReward [0.6]" "SendGift [1.22]" "SignColours [0.3]" "SignLogger [1.3.1]" "SignOwner [1.2]" "SignReadMore [3.2]" "SimpleSignEdit [1.3.3]" "Slots [0.8.1]" "SpawnControl [0.8.1]" "TelePlusPlus [1.3.3]" "Tombstone [1.2.9]" "TradeMod [1.0.4.25.11]" "Turnstile [1.6]" "WorldEdit [4.4]" "WorldGuard [5.0-alpha10]" "xWarp [2.9.3]" "MinecartManiaAdminControls [1.1.4]" "MinecartManiaAutocart [1.1.2]"

How much RAM do you allocate to the server process? 6gb
What is the launch line you use to start the server?

Code:

(AT) Echo OFF
TITLE MINECRAFT-CRAFTBUKKIT
START "MINECRAFT-CRAFTBUKKIT" /ABOVENORMAL /B java -server -Xms4G -Xmx6G -XX:PermSize=128m -XX:MaxPermSize=256m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:ParallelGCThreads=3 -XX:MaxGCPauseMillis=5 -XX:+UseAdaptiveGCBoundary -XX:-UseGCOverheadLimit -XX:+UseBiasedLocking -XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=90 -XX:MaxTenuringThreshold=15 -Xnoclassgc -XX:UseSSE=3 -XX:+UseLargePages -XX:+UseFastAccessorMethods -XX:+UseStringCache -XX:+UseCompressedStrings -XX:+OptimizeStringConcat -XX:+AggressiveOpts -jar craftbukkit.jar nogui

Do you experience high CPU load or paging? no
How many users are actively using your server when you experience the errors? 1-5
What are your users doing around the time the error occurs? Sometimes just logging in, sometimes in combat, not sure what else.
How large is your map? 50mb x 2 worlds
Has your server recently crashed unexpectedly? no
Do you still have these problems if you run your CraftBukkit server without plugins? Haven't been able to try
Do you still have these problems if you run a Minecraft server without CraftBukkit? haven't been able to try. sorry

EDIT: BBcode is seriously trying to eat my post.

 

@jasonznack
Please try this build and let me know if there are any problems (not just limited to the one you're currently having):
http://evilseph.malloc.us/.int/bukkit/craftbukkit-b754-eatfix.jar

 

I will test it out tonight. Thanks.

 

So I haven't gotten the entity already tracked error since using that test version, but one of my users is getting kicked a lot with this error:

[home]07:53:18 [SEVERE] Could not pass event PLAYER_MOVE to MultiVerse
java.lang.NullPointerException
at com.onarandombox.Rigby.MultiVerse.MVPlayerListener.onPlayerMove(MVPlayerListener.java:212
)
at org.bukkit.plugin.java.JavaPluginLoader$7.execute(JavaPluginLoader.java:268)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:59)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:274)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:130)
at net.minecraft.server.Packet10Flying.a(SourceFile:126)
at net.minecraft.server.NetworkManager.a(NetworkManager.java:195)
at net.minecraft.server.NetServerHandler.a(NetServerHandler.java:74)
at net.minecraft.server.NetworkListenThread.a(SourceFile:100)
at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
07:53:18 [WARNING] jampacked was kicked for floating too long!
07:53:18 [INFO] Player "jampacked" was kicked!
07:53:18 [INFO] Unloading player "jampacked"'s data!
07:53:18 [INFO] Player "jampacked" quitted!
07:53:18 [INFO] Unloading player "jampacked"'s data!
07:53:18 [INFO] BuyAbilities: Player "jampacked"'s data saved.[/code]

possibly fly mod related?

 

What operating system are you running the server on?
- Win7
Is it a 64 bit or 32 bit version of the OS?
- 64bit
What version of Java are you running (java -version to find out)?
- 1.6.0_24
How much RAM do you have on the system?
- 6GB
What are the specs of the server’s CPU?
- Intel E8400
What network card does the server have?
- Onboard
What network card drivers is the server using?
- NVIDIA
What firewall or other security software is running on the server?
- Norton Antivirus 2011
Is your server directly connected to your router or on a network?
- Yes
What is the network connection to your server? (1,5,10, 100 mbit .. etc?)
- Fiber Optic
Are you hosting on a VPS / Cloud or dedicated hardware?
- no
What is your hosting provider (if applicable)
- Verizon

Minecraft Server Information
What version of CraftBukkit are you running (output of /version in-game - please provide the full version string)?

Code:

2011-05-06 08:07:19 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-706-gf53e007-b740jnks (MC: 1.5_02)
2011-05-06 08:07:19 [INFO] This server is also sporting some funky dev build of Bukkit!

What plugins (and their versions) is your server running?
-

Code:

2011-05-06 08:08:29 [INFO] Plugins: AppleTree, AutoPlant, BlocksOnGlass, BlueTelePads, ChocolateFever, Citizens, CommandBook, CraftBookCommon, CraftBookCircuits, CraftBookMechanisms, CraftBookVehicles, FoundDiamonds, Growbie, HeroicDeath, iChat, NaturalGiants, PasswordProtect, Permissions, Picasso, RedstonePlugin, ScheduledAnnouncer, SimpleSave, SpawnMob, Wool Color Giver, WorldEdit, WorldGuard, Zeus

How much RAM do you allocate to the server process?
- Not sure
What is the launch line you use to start the server?
- Launch line?
Do you experience high CPU load or paging?
- On occasion.
How many users are actively using your server when you experience the errors?
- 1 or 2
What are your users doing around the time the error occurs?
- walking/disconnecting
How large is your map?
- 125MB
Has your server recently crashed unexpectedly?
- Yes
Do you still have these problems if you run your CraftBukkit server without plugins?
- no
Do you still have these problems if you run a Minecraft server without CraftBukkit?
- no

 

Code:

2011-05-07 16:39:01 [WARNING] Failed to handle packet: java.lang.IllegalStateException: Entity is already tracked!
java.lang.IllegalStateException: Entity is already tracked!
    at net.minecraft.server.EntityTracker.a(EntityTracker.java:72)
    at net.minecraft.server.EntityTracker.a(EntityTracker.java:62)
    at net.minecraft.server.EntityTracker.a(EntityTracker.java:51)
    at net.minecraft.server.WorldManager.a(WorldManager.java:17)
    at net.minecraft.server.World.c(World.java:766)
    at net.minecraft.server.WorldServer.c(WorldServer.java:94)
    at net.minecraft.server.World.a(World.java:1798)
    at net.minecraft.server.Chunk.addEntities(Chunk.java:470)
    at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServer.java:75)
    at net.minecraft.server.PlayerInstance.<init>(PlayerInstance.java:33)
    at net.minecraft.server.PlayerManager.a(PlayerManager.java:37)
    at net.minecraft.server.PlayerManager.addPlayer(PlayerManager.java:76)
    at net.minecraft.server.ServerConfigurationManager.a(ServerConfigurationManager.java:102)
    at net.minecraft.server.NetLoginHandler.b(NetLoginHandler.java:95)
    at net.minecraft.server.NetLoginHandler.a(NetLoginHandler.java:33)
    at net.minecraft.server.NetworkListenThread.a(SourceFile:87)
    at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:370)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)

General System information
What operating system are you running the server on?
-Mac OS X

Is it a 64 bit or 32 bit version of the OS?
-64 bit

What version of Java are you running (java -version to find out)?
-1.6.0_24 from Apple inc.

How much RAM do you have on the system?
-4GB

What are the specs of the server’s CPU?
-3.2 GHz Intel Core i3

What network card does the server have?
-?

What network card drivers is the server using?
-?

What firewall or other security software is running on the server?
-None

Is your server directly connected to your router or on a network?
-No

What is the network connection to your server? (1,5,10, 100 mbit .. etc?)
-20.41 MB/s Download/5.17 MB/s Upload

Are you hosting on a VPS / Cloud or dedicated hardware?
-No

What is your hosting provider (if applicable)
-N/A

Minecraft Server Information
What version of CraftBukkit are you running (output of /version in-game - please provide the full version string)?

What plugins (and their versions) is your server running?

How much RAM do you allocate to the server process?
-1024 MB/1GB
What is the launch line you use to start the server?

Code:

cd ~/Desktop/Bukkit\ Server
java -Xincgc -Xmx1024M -jar CraftBukkit.jar

Do you experience high CPU load or paging?
-No

How many users are actively using your server when you experience the errors?
-I don't believe there's any correlation between the amount of people on and the occurrence of the error; it happens just as often wether it be only one person online, or many.

What are your users doing around the time the error occurs?
-Most of the time, walking, because that's the most commonly done activity in the game. It has happened during many other activities though.

How large is your map?
-64.4 MB

Has your server recently crashed unexpectedly?
-Not the entire server, no.

Do you still have these problems if you run your CraftBukkit server without plugins?
-[WILL *try to* TEST]

Do you still have these problems if you run a Minecraft server without CraftBukkit?
-[WILL *try to*TEST]

And here's the <Edit by Moderator: Redacted mediafire url>

Hope this can get fixed soon, and thanks in advanced for any help.

 

This issue is now fixed in a new Recommended Build: #766.

Notable changes include:

• Fixed crash when paintings are struck by lightning.
• Added support for custom recipes to the API.
• Added per world PVP setting support.
• Added support to control snow forming by weather.
• Added support for wolves to the API.
• Fixed 'Entity is already tracked' issues that would freeze the server.
• Made teleporting between worlds 'smoother'.
• Fixed a chunk loss bug that sometimes occured when teleporting under certain conditions.
• Added an update on load feature for plugins (see below for more information).
• Added support for dispensers to the API.
• Made the movement speed more reliable on high load servers.

Update on Load:
This RB contains a new feature that allows you to easily update plugins without running into 'in use' issues. This is mainly useful on Windows, but can be used on any OS.

Any files placed in the configurable update folder are automatically copied into the plugins directory the next time a reload happens, provided a plugin with the same jar name is already running on the server. This allows for safe updating of the plugin .jar files. The name of the update folder is configurable through bukkit.yml, but is called 'update' by default. We do not make this folder for you. If you want to use this functionality, you need to create the appropriate folder within your plugins/ directory.

Updating is highly recommended due to the stability fixes available.