Large server with lag issues. Need advice.

Hello everyone.

I'm posting to see if someone can shed some light on a very annoying issue I'm having. I run a large server with 125 slots (the server averages between 85-125 people all the time) We have a large dedicated server that SHOULD be able to handle it no problem. The specs of the server are as follows:

16GB DDR3 RAM
128GB SSD
Intel Xeon E3-1230
100mbps Unmetered
Running the latest Craftbukkit++ with the following plugins:
WorldEdit
NoCheatPlus
uHome
VoxelSniper
JuiceyEssentials (Custom Plugin)
antiSpam
Buycraft
Backup
Juicewarp
Vault
Multiverse-Core
PermissionsEx
LogBlock
WorldGuard
Juiceplot (Custom Plugin)
dynmap
AutoMessage
Lottery
iConomy
SurvivalGames
ReportRTS
OpenInv
mcbans
LongDistanceTorch
CommandBlocker
FoundDiamonds
MoneyDrop
Zombes4Bukkit
Essentials
WorldBorder
XrayInformer
EssentialsProtect
EssentialsSpawn
Multiverse-Portals
Multiverse-Inventories
VirtualPack
VanishNoPacket
LWC
NoLagg
ChestShop
EssentialsChat

If I run the /stoplag command it immediately "fixes" it and puts the ticks per second back up to 20. But it stops all mobs and redstone stuff... so that's not really a solution. It doesn't really seem to be a plugin issue, I've been running the nolagg examiner and there doesn't seem to be any plugins that are causing constant lag like we're experiencing. Here's a screenshot of the most recent nolagg examination:



And here's a download for the exam file if anyone would like to look into it further:
http://dl.dropbox.com/u/14338309/2012_06_09-8_16_26.exam

I don't know if any of this info is helpful or not, but here's a NoLagg stats snapshot and an average tick rate.





I've heard that Craftbukkit++ might be causing the issue, but I also hear the Craftbukkit++ is the best thing to use for large servers. So not sure what to think about that.

Any help or advice would be GREATLY appreciated.

If anyone would like to check out the server if it would help any, the IP is: juiceville.alti.in

Thanks so much.

 

Dude I have the exact same dedicated server and the exact same problem. I downgraded to The 1.2.5 R1 which fixed the problem for me, but seeing as 1.3 will be coming out soon I need to find a permanent fix and fast.

 

Is that 1.2.5 R1 still Craftbukkit++ or regular Craftbukkit?

 

Its regular craftbukkit 1.2.5 R1

 

I use ClearLag which clears entities, decreases lag and RAM usage. You're probably on 1.2.5, otherwise WTF, so just click here to go to the BukkitDEV.

Change the config.yml file to

Code:

#--broadcast when the /lagg clear command is ran--#
player-broadcast-removal: false
#--broadcast on console removal--#
console-broadcast-removal: true
 
#This is how long it takes for the server to auto-run lagg clear
#To disable this, put -1
InitialDelay: 300
#This goes by seconds!
#600 = 10 minutes
 
#--Removal options--#
remove-boat: false
remove-xp: true
remove-painting: true
remove-projectile: true
remove-item: true
remove-minecart: false
remove-ready-tnt: true
remove-fallingsand: true
remove-arrow: true
remove-snowball: true
remove-fireball: true
remove-EnderSignal: true
 
#--Removal options for mobs--#
remove-creature: false
remove-animals: false
remove-monster: false

Otherwise its annoying as fuck.

 

Update:

Updated to the latest Craftbukkit which still didn't solve the issue. Right now we're running the latest version of Craftbukkit++ and the problem still exists. Installed a redstone clock detector plugin and found a bunch of intensive redstone creations and destroyed them all, even that didn't help. Removing all entities barely helps. Only thing that really works is doing /stoplag but stops mobs spawning and anything else intensive, but obviously this isn't a permanent solution.

Any other advice?

 

Did you find something?

 

I don't really have any notciable lag spikes since when all my plugins updated to the Async Chat but my tick rate is still running low (10 - 15 tps) whereas on 1.2.5 it never really dropped from 20.

Check if you still have plugins using the old chat event. In bukkit.yml set "deprecated-verbose: true" and when you start the server lookout for any exceptions about depreciated events. If there are some then definitely look at updating those plugins.