Lag Spikes

[austin-wiechman]

You will receive NO SUPPORT if you do not follow the template below. (Vous ne receverez pas aucune aide si vous effacer ce modèle)

Server Log: (Use Pastebin or Github Gist)
Log

FML Log(s): (Use Pastebin or Github Gist)
FML Log
This is the area around where it told me to report the issue: http://pastebin.com/XhGh9d6H

Explanation of issue:
Server occasionally gets really bad lag spikes in which it only uses about 1/3 of the allocated ram. Most of the rest of the time it is around 19 - 20 tps but it can drop extremely low and time out players during these times.

How to recreate this issue:
The console gives no lead as to what is the cause of the issue (as far a I can tell). It happens randomly.

Modpack Name: (Only if public)
ACE Minecraft

Mods Installed:
iC2
AOBD
AdvancedLightsabers
AdvancedVanilla2
Agricraft
AnimationAPI
Armourers Workshop
Battle Towers
BiblioCraft
Big Reactors
Botania
Botanical Addons
Brandons Core
Carpenter's Blocks
Chicken Chunks
Chisel 2
CoFHCore
Code Chicken Core
Computer Craft
Cookie Core
Custom NPCs
Custom Ore Gen
Death Counter
Defense Tech
Dimension Guard
Draconic Evolution
Dragon Mounts
Enchanting Plus
EnderIO
Ender Storage
Ender Zoo
Extra Utilities
Extra TiC
Factorization
Farlanders
Fast Leaf Decay
Flans Mod
Fluxed Crystals 2
Forbidden Magic
Gravestone
Gravity Gun
Headcrumbs
INpure Core
Iguana Tinker Tweaks
Immersive Engineering
Jabba
Loot++
Mantle
Mekanism
MineFactory Reloaded
Mob Properties
Mobius Core (Thermos Version)
More Enchantments
Morph
Morpheus
Mr Crayfish Furniture Mod
MultiMine
Mutant Creatures
No More Recipe Conflict
NEI
Not Enough Resources
Open Blocks
Open Computers
Open Mods Lib
Open Modular Turrets
Open Peripheral
Opis
Ore Dictionary Converter
Pam's Harvestcraft
Portal Gun
Project Red
Server Tools (Backup & Core)
Simply Jetpacks
SpACore
Steves Addons
Steves Factory Manager
Storage Drawers (and Natura Addon)
Fisks Superheroes
Tinkers Construct
Tinkers Mechworks
Tinkers Steelworks
Thaumcraft
Thaumic Exploration
Thaumic Tinkerer
Thermal Dynamics
Thermal Expansion
Thermal Foundation
TiC Tooltips
Trailmix
Wireless Redstone
Warp Drive
Lucky Block
Security Craft
Treecapitator
Adventure Backpack
AE2
Buildcraft
Buildcraft Compat
Darkcore
Fastcraft
iChunUtil
Iron Chest
Looking Glass
McjtyLib
MFFS
Mystcraft
Natura
Resonant Engine
RFTools
Secret Rooms
The Tardis Mod
Thaumcraft NEI Plugin
Thaumic Energistics
Trash Slot
Crafting Manager

Plugins Installed:
WorldEdit
Essentials
killStats
EssentialsProtect
Minetrends
GroupManager
EssentialsChat
ClearLag
ChatControl
MineStats
Vault
GriefPrevention
EssentialsSpawn
MassiveCore
WorldGuard
ProtocolLib
EnjinMinecraftPlugin
ShopGUIPlus
Factions
BuyHead
Mobcash
SimpleAlias
JLib
PromotionEssentials

Warmroast Report: (Optional)

Thermos Version:
I think it was 58. But I don't remember and am not sure how to tell.

Forge Version:
1.7.10

[sameer]

Have you looked at the server log? It is constantly spamming an error for warpDrive.xsd.
Did you setup your server properly?

As far as I can tell, the lag is due to mods. For the log you shared where it told you to report the issue here, you needed to wait 10 seconds longer for the timeout to occur so it will print the stack trace where it hangs.

If it happens again, please wait for the full 90 seconds and share that stack trace it prints out.

[austin-wiechman]

I'm sorry but I'm not sure I understand what you are saying. Do I need to remove warp drive or configure it differently? And what is the stack trace you are referring to? Also that log where it told me to report the issue is just a fragment of the FML log. I posted it as well to make it easier to find.

[sameer]

Sorry that I was not clear, I was on my phone at the time when I responded.

Basically: when the server gives you this message: The server is going slow. Last server tick was 36240ms ago

You want to wait until it reaches 90000ms. This is when it decides that it will probably not recover and prints a stack trace that indicates on what code the server got stuck.

[austin-wiechman]

I included the entire log... And 90 seconds later it didn't say any thing. A little bit before 90 seconds it said this: "[10:02:01] [Spigot Watchdog Thread/ERROR]: Server thread dump (Look for plugins here before reporting to Cauldron!):" and then had some other stuff. Is that what you are referring to?

[austin-wiechman]

Oops, Wrong button. Didn't mean to close the issue.

[sameer]

You're fine 😉. I click on that sometimes by accident too, it's very annoying.

Yes that is what I was referring to, please pastebin that. 👍

[austin-wiechman]

Didn't know how much to do, but here it is http://pastebin.com/w4v5b8xm

[sameer]

That works!
Do you know the exact number of mods you have?
Also, do you have some sort of auto-saving task that executes? That seems to be part of the problem.

[austin-wiechman]

143 Mods (assuming I counted correctly) including those in the "1.7.10 folder" and the flans addons. Some of these mods (primarily mekanism and project red) are divided into several sub mods (in the folder I have mekanism, mekanism generators, and mekanism tools) I counted these as separate mods. As for auto saving, the host I use (anvilnode) uses a control panel called multicraft. Multicraft has an autosaving feature, which I think can be disabled.

[sameer]

I think that auto-save feature is part of the problem -- in the log, the hang originates from the execution of the save command: org.bukkit.command.defaults.SaveCommand.execute(SaveCommand.java:30)

The server already automatically saves itself. Could you disable that autosave feature and see if performance improves?

[austin-wiechman]

Ok, I will try that, I don't know why it has the auto save feature if it auto saves itself...

[sameer]

Yea, it is a common misconception...

[austin-wiechman]

Also along with this, I get errors with several of the mods on boot like this: "22.10 17:07:40 [Server] WARN Mod ChickenChunks is missing the required element 'version' and a version.properties file could not be found. Falling back to metadata version 1.3.4.19" Don't know if it is bad or if it can be fixed...

[sameer]

For the modpack you are running, did the creator provide a default server setup configuration?

[austin-wiechman]

I made the modpack, so no. And I am fairly new to this, so I am figuring it out as I go.

[sameer]

That is probably part of the problem, no offense intended.
It is likely that you missed adding some configurations.

[austin-wiechman]

None taken. I thought the mods generated the configurations. Where would I get the configurations.

[austin-wiechman]

Also do I need to do anything with warp drive? Or is that fine.

[sameer]

I'm not sure about the configurations, usually they are automatically generated, but some stuff seems to have been missing that should've already been there. When you downloaded the mods, did some of them have additional files?

[austin-wiechman]

No, at least not that I am aware of.

[austin-wiechman]

Ok, so the server has been running a while now and I checked the log. It hasn't crashed yet but it does still seem to be ticking slow occasionally like Here

[sameer]

For the mod related to the warp drive, could you check if there was a warpDrive.xsd provided? It seems to be incorrectly formatted according to the log.

[austin-wiechman]

The file is in the warpdrive config folder. Maybe if I delete it and have the game regenerate it.

Also the game it still ticking slow. So far no more crashes but still extreme lag spikes periodically.

[Eufranio]

22.10 17:07:40 [Server] WARN Mod ChickenChunks is missing the required element 'version' and a version.properties file could not be found. Falling back to metadata version 1.3.4.19

It's normal, dont worry :P

[austin-wiechman]

What about the server ticking slowly? It is still doing that, and I have
yet to find a solution.

[spannerman79]

How much RAM and what CPU clock speed do you have with your instance?

Dedicated/VPS or Game Service provider?