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 Dec 3, 2012@Nickbbeezy Compatible version is underway. Waiting for the newest Orebfuscator to be approved, because there were some compatibility/related updates.
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Posted Dec 3, 2012@FurmigaHumana
I only use NoLagg for the examine feature Lol
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Posted Dec 3, 2012Looks like Nolagg & OFC again: http://pastebin.com/WNnjfW2L
CB Build #2503 1.4.5-R0.3
NL: v1.89.
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Posted Dec 3, 2012Found a problem in BKCommonLib and it will probably be fixed in the next versions. The other error, however, remains a mystery I didn't manage to solve yet.
EDIT
@Brocodo I tracked it down to someone calling ChunkProviderServer.saveChunk from another thread. Can I please see a list of plugins you are using? I suspect it is PTweaks, as it had 'some sort of' asynchronous saving part that I avoided for this very reason.
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Posted Dec 3, 2012There is something wrong with this plugin. All plugins using 1.4.5 R0.2 version on craftbukkit 1.4.5 R0.2.
When i use the /nolagg examine command player are freezing and only some of them can see
other players, they become invisible or duplicated. Also i got this error together with other plugins that tried to save something but are all saying that there are too many files open.
I got this error:
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:529)
03.12 17:05:53 [Server] SEVERE at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345)
03.12 17:05:53 [Server] SEVERE at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:53)
03.12 17:05:53 [Server] SEVERE at com.bergerkiller.bukkit.nolagg.saving.AutoSaveChanger$1$2.run(AutoSaveChanger.java:60)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.ChunkProviderServer.saveChunk(ChunkProviderServer.java:186)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.ChunkRegionLoader.a(ChunkRegionLoader.java:78)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.World.D(World.java:2590)
03.12 17:05:53 [Server] SEVERE at net.minecraft.server.WorldNBTStorage.checkSession(WorldNBTStorage.java:76)
03.12 17:05:53 [Server] SEVERE net.minecraft.server.ExceptionWorldConflict Failed to check session lock, aborting
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Posted Dec 3, 2012@h0us3cat
I hope not! There is a few tickets about it, so I think bergerkiller already knows about and I hope he is working on a fix, I like examine :D (in my option, NoLagg examine should be an individual plugin, a few people only use nolagg because of the examine)
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Posted Dec 2, 2012Can you provide an option for NOT mapping /lag to /nolagg? Sometimes I like to get the rich report that is built into bukkit and I can't get it with nolagg installed. Poss map /lagg to nolagg instead of lag?
thanks!
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Posted Dec 2, 2012@Qentus
That's not what you said in your comment though.
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Posted Dec 2, 2012@ray73864
I was talking about this: lagNotifier:
If tps drops bellow 15, it starts printing "Cant keep..." message in ingame chat for people with perms
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Posted Dec 2, 2012@FurmigaHumana
So its normal?
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Posted Dec 2, 2012@h0us3cat
chunks stops loading.
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Posted Dec 2, 2012server kicks me or everyone after /lag examine... for flying.
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Posted Dec 2, 2012@Qentus
That 'Can't keep up' message is NOT a 'NoLagg' message, it is a vanilla minecraft message, my 'vanilla' whitelisted server gets the same message every once in a while.
The 1s lag itself is inevitable, again, a vanilla thing, using a RAMDisk can cushion it to the point you likely won't notice it at all, otherwise, you have to put up with it, i mean, you are talking about dumping all the current stuff from memory back to disk, so you have to take disk I/O into account.
Changing to something like Spiggot won't make any difference at all.
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Posted Dec 2, 2012@bergerkiller
Every time the server is saved with /save-on, it is followed by 1s lag, NoLagg message "Cant keep up..." and tps goes to about 60 and then back to 20...
Do you think you can give me any advice (something like using Spiggot or other modified Craftbukkits)? It is really annoying to have a lag for a 1 sec every 1 minute.
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Posted Dec 2, 2012@Qentus Yes, if you use /save-off the server will never unload chunks. It's been like that for a long time, how else to 'not save' chunks when they 'unload'? It's a CraftBukkit type of thing. I do understand the problem, but I'm not sure that I can fix it, as most of that logic is in CraftBukkit itself.
@Cueball61 Good idea, I'll add a setting for it.
@CosmicVoyager What plugin did you use to warp? I'll try to fix that problem for that plugin then, as I only have MyWorlds' /tpp to test this.
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Posted Dec 1, 2012Anyone know why chunks are missing when warping with NoLagg installed?
Is there a setting I can change that will fix this?
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Posted Dec 1, 2012An option to specify the .exam output folder would be really helpful, especially since I need a way to get them down to my desktop to examine them and being able to have them output to a dropbox folder would be incredibly useful.
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Posted Dec 1, 2012@bergerkiller Hi, I have problem with both - your auto-save and with bukkit /save-all. I dont know why, but the only thing that works for world saving is /save-on . But it is causing server lag each time it saves worlds (I have server running in RAMdisk so what can be so laggy?)
When I run /save-off and let NoLagg save worlds (or manually use /save-all), /nolagg stats shows that the chunk number is increasing and never drecreases (same result with Essentials /elag )
I dont know if it has anything to do with Multiverse handling my worlds (the main world is called world_normal)
Do you think you can help me?
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Posted Dec 1, 2012@finallove2
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.
Have a read.
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Posted Nov 29, 2012plz split plugin.