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 Feb 28, 2012Weird...even without the chunkdelayer or mob limiters, I actually saw a significant tps decrease after installing this. It went from about 15 +-4 tps to a steady 9.0 +- 0.2 tps immediately after installing. Net result, much slower tps, but also much less variable.
CB 1938, ~12-15 players on.
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Posted Feb 28, 2012@steven_desu
Clearly I have no idea what type of markup "WikiCreole" is. I copied and pasted the YAML file exactly and it created a numbered list from the comments and put the config rules on the same line.
I have "enabled: true", "radius: 2.0", and "threshold: 2" for my itemStacking. Yet the items never stack. They buffer just fine, though.
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Posted Feb 28, 2012Item stacking doesn't seem to be working for me, and I'm not certain why. I have the following in my /plugins/NoLagg/config.yml file:
itemStacking:
Yet I can drop as many as I please of the same item next to one another and they never stack. Everything else (TNT buffering, item buffering, entity limits, etc.) work perfectly. It's just this one feature that doesn't work at all. I notice that today (12 minutes ago, actually) you mentioned "item stacking and item buffering should be separated as well" - could this be related?
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Posted Feb 28, 2012The TNT handler and chunk sending mechanics are now separate plugins. If you only use NoLagg for either or both of these features, you can remove NoLagg.jar and only add the jar file you need.
This is to remain compatibility and reduce the amount of worthless loaded classes when pretty much everything is disabled. NoLagg still (tries) to monitor and log the two add-ons if they are enabled, but the add-ons do NOT use NoLagg.jar whatsoever. They also provide separate commands and permissions.
/tnt info, /tnt clear /sending - sending information
Main reason I do this is because I feel that, having huge implementations around something that don't provide the feature itself, is a bit useless. TNT and chunk sending do not use the meta data/entity lists/others, so I was able to cut it out fairly easy. Chunk unload delays are now disabled by default, since it got bugged in R3-5 after some CB update.
I hope this addresses some of the issues people had, because they can now exactly and physically choose what they want, instead of having to tinker with the configuration.
Item stacking and item buffering should be separated as well, but they use the meta data, so I need to figure out an alternative for that first.
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Posted Feb 27, 2012@SERVERCONSOLE
You tried to run the examiner on your server... It's a client-side renderer for the log files. Run examiner on your pc and feed it the log file.
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Posted Feb 27, 2012@bergerkiller
im running R5 and it seems to work without error
[INFO] This server is running CraftBukkit version git-Bukkit-1.1-R4-26-g6ab5556-b1960jnks (MC: 1.1) (Implementing API version 1.1-R5-SNAPSHOT)
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Posted Feb 27, 2012@QBcrusher Yeah it works on that, but maybe the later R5 versions will fail.
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Posted Feb 26, 2012@goldseed
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Posted Feb 26, 2012Hate separated plugin..
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Posted Feb 26, 2012does this work for CB 1.1 RB 4?
if so, you really need to change it, because it says: use the latest recommended CraftBukkit build with this plugin, do NOT (and I SAY NOT!) use versions below or above. Doing so can result in internal (sensitive) implementations to fail, which can cause some serious issues, including but not limited to: Chunk corruption, tick rate drops, error spam, unexpected crashes. So therefore, before you download and use this plugin, check if you use the correct CraftBukkit version.
it also says CB1938
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Posted Feb 26, 2012Tried this: $ java -jar ExamReader.jar Exception in thread "main" java.awt.HeadlessException: No X11 DISPLAY variable was set, but this program performed an operation which requires it. at sun.awt.HeadlessToolkit.getScreenSize(HeadlessToolkit.java:279) at com.bergerkiller.bukkit.bc.MainWindow.<init>(MainWindow.java:22) at com.bergerkiller.bukkit.bc.MainWindow.<init>(MainWindow.java:19) at com.bergerkiller.bukkit.bc.ExamReader.main(ExamReader.java:162)
Didn't work - can someone please tell me how to read the examination report?
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Posted Feb 26, 2012@Gnintendo Yup.
@godgodgodgo Too many updates in too less time, I'll update the changelogs once I have enough time for it lol
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Posted Feb 26, 2012The chunk unload delay does disable properly, right?
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Posted Feb 26, 2012Please continue with your changelogs :D
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Posted Feb 26, 2012@Gnintendo Yeah that is normal, it performs all the item buffering and 'can I unload this chunk' calculations.
@HighlifeTTU That is far too advanced for this plugin and I don't have time to implement that as well...maybe request a 'custom mob spawning' plugin.
@xXSshadowXx You can disable the chunk unload delays, it is a main cause for all the trouble.
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Posted Feb 25, 2012That update fixed the performance hit when entity spawn limits were disabled! Thanks! Now the largest performance factor is "Chunk updtr" (which I assume is normal?)
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Posted Feb 25, 2012I have a request for you. One of the issues I have is that once players are sitting in there bases, mobs hit their cap (they spawn in all the caves around them) and the mob limit is hit. I'm wondering if you could make nolagg toggle the mob limit on night and day. So, once it became day time, it brings the mob cap down. Then, once it hits night, the mob cap raises again so that there is room for surface spawning. I run a hardcore server so its pretty important that mobs spawn at night. Let me know what you think.
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Posted Feb 25, 2012@GravelSocks
is it possible that this environment isnt supposed to be "social" in a forum sense since they already have a forum? they might improve it later (and some things u say they shud add are indeed welcome) but perhaps their model is built on "eh, its just for ppl to download plugins and post bugs, they can all go talk on the forums if they want"
so its either a lack of necessity (from the bukkit view)
or
as you say an "early attempt" that will be built on later, pretty sure we all want it to be the later :P
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Posted Feb 25, 2012OK. I love intellectual discourse as much as the next guy. But, being that this is supposed to be about NoLagg, could someone please tell me how to open the examine info with the examiner jar. Is there a command line I do from terminal? If so how do I quit when I am done? Do I run it in-game somehow?
Thanks for any help you can provide.
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Posted Feb 25, 2012@bergerkiller
With 1.66 and CB1940 I started to experience a sort of "lag out" after a while(so I had to disable NoLagg for now). Do you know if this version corrects it? I would downgrade to 1938 however I can't find the 1938 version of Spout :(