NoLagg

Version: 1.90.4 | CB 1.7.2
Quote from lenis0012:NoLagg has not been updated since 1.7.10, for more info, check BKCommonLib
Description
NoLagg is made out of multiple completely separate components which you can enable and disable freely. Together they offer:
- Send chunks more gracefully with lowered network stress and reduced processing spikes Read more...
- Remove entities, resend chunks in case of chunk holes and clean up server memory Read more...
- Examine server tick rate performance with deep view into per-tick processes of the server Read more...
- Stop a large amount of items from spawning and spawn at a later time to avoid frozen clients Read more...
- Stack items with a configurable per-world radius Read more...
- Fix lighting errors that cause clients to recalculate lighting (and thus lag) Read more...
- Keep track of server performance such as entities, tick rate, memory and more Read more...
- Fix various bugs the server has (Patches component)
- Schedule autosaves and force data to be written to disk to prevent data loss on server crash (Saving component)
- Limit the amount of entities allowed to spawn per world or globally Read more...
- Watch events closely to warn when plugins execute main-thread methods from another thread Read more...
- Show a detailed message explaining the cause for a server freeze (lock) [read more]
- New TNT execution algortithm that is not only more efficient, but also avoids server freezes Read more...
Important
When first installing NoLagg, open up config.yml and disable components you do not need. This is very important, as some components may conflict with other plugins you use, or may not function on the type of demand you have. If you get a warning message [Severe] followed up with a stack trace in the log, this has to do with the main thread not having responded within 10 seconds. The warning is NOT an error and is no bug, and not a bug related to NoLagg. To disable this feature, disable 'threadlocknotifier' in the config.yml. This feature is mainly intended to notify you what plugin is causing the server to freeze, may it ever happen. It is used to debug plugins in general, as they may get stuck for whatever reason. If NoLagg DOES show up in there, it is a bug you should report.
FAQ
Separating into jar files
NoLagg consists of multiple components you can individually enable and disable. Reasons for not publishing it as a separate jar file for every component can be read here. Please don't ask to separate the components, I will just link you to here.
Spigot server
Not all components are needed when you use the Spigot server. The ItemStacker, ItemBuffer, Spawn Limiter, Thread Checker and Thread Lock Notifier components are not needed, since Spigot has it's own implementations to deal with that. If you still wish to use one of these components, you can, but it's best to disable the Spigot alternative then.
The other components (such as TNT, Chunks, Lighting, Common, etc.) are not implemented in Spigot (yet?) and offer additional functionality.
PTweaks
Since people keep asking about this, I went ahead and compared the two plugins. I am not going to discuss which is better in functionality, I'm just going to state which features overlap and which do not. Both plugins offer a TNT-lag solving solution, feel free to choose which solution you like better. (the solutions are different) Both plugins also offer a way to change when and how chunks are saved, NoLagg adds to this that you can configure when the server writes data to disk. PTweaks offers a way of showing used memory, NoLagg Monitor too with a bit more information. Again, preference. Chunk Persistence is something PTweaks offers and NoLagg does not. Reason I excluded it from NoLagg is that the implementation used up more processing power than that it solved (I did have this for a while). If you want to give it a try, PTweaks is your answer. Monster Limiter is incorporated in NoLagg as well but then for all entities, and more options. ChunkEdits is a tricky one: NoLagg chunks does something similar, with the difference being that it also changes at what rate chunks are sent, which is the main feature NoLagg chunks offers. In addition, the ability to increase the amount of threads running to process chunk packets and the re-using of packet raw data offers some benefits PTweaks does not offer.
Then there are a lot of other features NoLagg has and PTweaks does not, such as examining server tick rate, item stacker, item buffer, fixing lighting, cleaning up server memory, resending chunks, removing entities on command and others (see description).
In short: Both plugins offer some overlapping features, and you need to pay close attention to the configuration of PTweaks and NoLagg and disable things that conflict. Having two TNT explosion altering plugins is going to have strange results, for example. Compare the functionality, decide, and enable in NoLagg what you do not want in PTweaks, and vice versa.
NoLagg showing up in error stack traces
The examine component inserts various hooks into the server to gather measurements. Specifically, you will find that the following lines show up now and then. These hook classes do absolutely nothing when not examining and can not be the cause for any issues, unless the stack trace ends there (first line after the exception shows this stack trace)
- org.timedbukkit.craftbukkit.*
- com.bergerkiller.bukkit.common.internal.ChunkProviderServerHook
Video
Here is a video by BlueDevonMovies (lenis0012):
Metrics
This plugin sends server count statistics to MCStats.org. You can (globally) opt out in the PluginMetrics/config.yml file.







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Posted Oct 20, 2012Constant Crashing:
at net.minecraft.server.World.tickEntities(World.java:1079)
http://pastebin.com/gUh0jMHd
tons of entities spawning also
289834 Entities http://i.imgur.com/DoEM6.png
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Posted Oct 20, 2012@janie177 Two hours is way too long. Don't forget that every logged element has a long value (8 bytes) per tick. Doing an hour of it would definitely be impossible. How did the server manage that, though? When I try to start such an examination it would crash the server at some point, or deny the examination at all. I'll add a max examination duration in there. I think the maximum would be about 30000 ticks (1500 seconds/25 minutes). I'll put in a forced configurable maximum of 30 minutes so people don't do the same.
@MrMime22 It is more that the RAM memory on your server, when a lot of players are online, will deplete and garbage-collect more often because of the chunk map packets created to send chunks to players. In the threaded sending in NoLagg I re-use the same 'packet' which results in a reduced memory allocation rate. This, in turn, reduces the amount of times the memory garbage-collects, which saves CPU in the long run. Nothing is wasted, everything is gained using this method. I made it configurable because there are plugins that try to store packets, like what Orebfuscator does. I had to add manual support for those plugins as a result. If you use a plugin like it that I don't support, it could cause scrambled chunks to be received by the clients.
@benneht So far it seems to be caused by the item stacker, I am working on fixing that up for good.
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Posted Oct 20, 2012Why can't people pick up items, and also it lags every time there is a new player that logs in. Help?
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Posted Oct 20, 2012Also one more question.
Do the nolagg chunks section use more ram to help the CPU out?
bufferedLoader: enabled: false threadCount: 2
And this ^^
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Posted Oct 20, 2012Its very odd, servers fine, then someone logs in and loads a chunk EG: At there undergroun house. Then whole server freezes up once that chunk is loaded, I do /nolagg clearall and 130000 entities get cleared, then servers fine, but this does not make any senece.
Take a look at my whole log (goto parts when theres many dissconections)
http://pastebin.com/
289834 Entities http://i.imgur.com/DoEM6.png
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Posted Oct 20, 2012I made a 2-hour examine using /lag examine 144000 and tried to open it. I got the error: Failed to load file:
java.lang.Outofmemoryerror: java heap space.
I found a tutorial on the internet to increase the heap space, and I put -Xmx800M in the java runtime environment. I'm using java 7. Is the file too big or do I need to allocate more memory?
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Posted Oct 20, 2012@bergerkiller
Its very odd, servers fine, then someone logs in and loads a chunk EG: At there undergroun house. Then whole server freezes up once that chunk is loaded, I do /nolagg clearall and 130000 entities get cleared, then servers fine, but this does not make any senece.
Take a look at my whole log (goto parts when theres many dissconections)
http://pastebin.com/
289834 Entities http://i.imgur.com/DoEM6.png
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Posted Oct 19, 2012@MrMime22 Seems unrelated to NoLagg. I think there are too many entities on the server. What does /lag monitor say about the entity counts? (specifically items)
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Posted Oct 19, 2012[WARNING] [Server] The main thread failed to respond after 10 seconds 02:57:30 PM CONSOLE: [WARNING] [Server] What follows is the stack trace of the main thread 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.Chunk.a(Chunk.java:732) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.World.getEntities(World.java:2229) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.EntityItem.h_(EntityItem.java:61) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.Entity.move(Entity.java:462) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.WorldServer.entityJoinedWorld(WorldServer.java:511) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.World.getCubes(World.java:959) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.World.playerJoinedWorld(World.java:1227) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.World.tickEntities(World.java:1125) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.World.entityJoinedWorld(World.java:1245) 02:57:30 PM CONSOLE: [WARNING] [Server] at net.minecraft.server.WorldServer.tickEntities(WorldServer.java:428) 02:57:32 PM
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Posted Oct 18, 2012@jaggy80 Yes, I think it was the spawn limiter that was proven to cause it. Removing all item limits from the config.yml would do as well.
@eprimex I'll test it for you, I have to update BKCommonLib and such anyhow.
EDIT
No errors on startup, though I do get a weird error from Bukkit itself, something related to auto-updating of plugins. Can't trace it back to any of my plugins.
@siemaeniu500 See if the beta version I uploaded before helps prevent this:
https:dl.dropbox.com/u/3681706/NoLagg%20v1.88.8%20TEST%20VER1.zip
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Posted Oct 18, 2012@bergerkiller
I'm afraid @Ta6akus3 won't be replying to you. It appears he has been banned :D
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Posted Oct 18, 2012After install this plugins, sometimes chunks are not loading, and playersa are fell out of the world !
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Posted Oct 17, 2012Anyone else still having the no item drop issue? We have drops working for a while then it stops. Doing /lag reload fixes the problem temporarily. There was a version or two that the problem didn't exist and now it's happening again.. I need to find which versions are affected. Is there just part of nolagg I can disable until its working again?
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Posted Oct 17, 2012anyone tested with Version: 1.3.2-R2.0 (Build #2396) ?
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Posted Oct 17, 2012@Ta6akus3 Hmm then I recommend you stop using a server alltogether. CraftBukkit is one huge library. So is Vault. So is Essentials. As lol768 it's a ridiculous requirement and I recommend you look into how programming actually works. The BKCommonLib library has several main advantages:
So yeah, it is either BKCommonLib in, or having a 50% of the features out the window. It's your choice.
Please, explain how libraries are a big peace of shit. Let me guess, you used the Spout Plugin, which tries to do things a plugin can't do but still does it? Be grateful people attempt to make stuff possible.
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Posted Oct 17, 2012@Ta6akus3
This is a completely ridiculous reason for not using a plugin. Cases like this want to make me give up writing code...
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Posted Oct 17, 2012Remove the requirement of bkcommonlib. Plugins that requires other plugins to run are big peace of shit for me. And yes, I dont use nolagg, and I wont use it till it requires other plugins to run.
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Posted Oct 17, 2012Test version for 1.88.8:
https:dl.dropbox.com/u/3681706/NoLagg%20v1.88.8%20TEST%20VER1.zip
I tried to fix the error in the examiner, though I can't be fully certain. If it doesn't fix it, I will need a plugin list to find out what happened. I also added some changes to the chunks component to update the queue position when a player teleports. This should prevent the missing chunks after teleporting.
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Posted Oct 17, 2012@fffizzz You are running a plugin that is not enabled or has some sort of other issue. <snip> I'll add an isInitialized check in there.
@RasCas Ok, thanks.
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Posted Oct 17, 2012http://pastie.org/5072531
getting NPE/Crash on use of nolagg examine