Yet Another "System Cannot Keep Up" problem..

Hi there!
Some days ago, I started having the following problem on my server. As I am almost going on vacations I need to sort this out Any help will be trully appreciated.
Bukkit 1060
Plugins:

The problem:
I start the server by morning normally and have about 10 players during the day. By the end of the night or by morning (about 24h later) I start getting the messages on console:

If I let them be for a few hours, I see weird CPU spikes on the TaskManager and the server eventually crashes.
I really need to find out what is causing this with your help...
My startup script on Java 6 U27 X64:

Best regards,
John

le bump

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Most people get them, you can fix it by getting a RAMdisk or better a SSD to run the server off. Even then I still see them every so often.

Also just restart you server every 24hours based on your post that should be enough to fix the issue.

 

Same problem, CPU hangs @100% and some great 0-100% cpu spikes on taskmanager.

Bukkit #1060
1.Starts server normally on morning.
2.Begin to lag
3.CPU hangs @100% (Java 60% - System 35%)
4.Then crash... also Read Timed Out

Dunno what happens...

 

Can you paste here your active plugins? Just to have an idea...

Regards,
John

 

Sure

Code:

Plugin List: "Annotate" "bColoredChat" "BedRespawn" "BigCatch" "BlockLog" "ScrapBukkit" "ChairCraft" "ChestShop" "ChunkRegen" "Commands Logging" "CommandSigns" "CuboidPlugin" "DropChest" "Essentials" "EssentialsChat" "FullChest" "GoldTools" "GravelClay" "Hungry" "iConomy" "LivingBuilding" "Lockette" "MCStats2" "MinecartManiaCore" "MinecartManiaSignCommands" "MinecartManiaStation" "MobDisguise" "MotherNature" "MultiInv" "Multiverse-Core" "Multiverse-NetherPortals" "Multiverse-Portals" "NoIce" "NoMoreRollBacks" "NSCommand" "OpenInv" "Permissions" "PlugMan" "PorteCoulissante" "RetractableBridge" "SecretDoors" "SignLift" "SpawnMob" "Spout" "StreetLamps" "Tombstone" "WorldEdit" "WorldGuard" "xAuth" "dynmap" "JukeBukkit" "mcMMO" "MinecartManiaAdminControls" "MinecartManiaAutocart" "MinecartManiaAutomations" "MinecartManiaChestControl" "NoSpawn" "Jobs" "LWC" "SpoutBackpack"

Its long xD

I'm pretty sure it's a plugin, a named my plugin floder "pluginscopy" and created a new folder named "plugins" to start without any plugin, and it seems to not crash, i'm looking at it

EDIT : CPU Stable and server too, the problem is a plugin... but which ?

Found it, it's Dynmap, sure of it.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

If that's the case,
You just save me days of troubleshoot mate!
I was also pointing fingers to xAuth (the 4.1v got it's problems) or Multiverse.
Just started my server without DynMap, I'll keep an eye on the memory usage on the next 24h.
Regards,
John

 

Look for a plugin that loads/unloads a lot of data, on the LostCraft server we occasionally get read timed out when Essentials is loading the 14,000 user data files (not that it needs to, but it does).

 

Go into plugins -> spout -> and then the properties. Set chunk precaching to false, I heard it causes some weird issues.

 

I'm running now without DynMap to check what HadrienM said.
If this does not produce results, I will disable that option and give some feedback.

Regards,
John

Is there a way to see what java threads are using this much RAM on the process java.exe? (Windows)

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Well, I have to give my feedback, because for the last 3 days the server is working rather well, without that problem.

I did 2 things:

- Changed my startup script to

Code:

"C:\Program Files\Java\jre6\bin\java.exe" -Xincgc -Xms1G -Xmx2G -jar craftbukkit.jar

So I inserted the -Xincgc (which is on the Wiki) and made the startup memory pool 1/2 of the size as it's maximum. I read this recommendation on the Java Documentation and not on the Bukkit one.

- Deleted my Dynmap and started from scratch. Even made a new config file.

My server is in tests ATM so I'll give you guys come feedback later.

Thank you all for your replies!
Best regards,
John