LagMeter

Table of Contents

Lets you check the server lag, in ticks-per-second.

Bukkit version does not matter for this plugin.

Description

A lot of plugins tell you that something happens "every X seconds, depending on lag." That's because when the server is overworked, there are less than 20 ticks per second. This plugin will measure the number of ticks per second, and output it on your screen as a "Lag Meter." The plugin can also output the amount of memory free, alert those with a specific permission node when the ticks per second or free RAM goes down too far, and even measure the server's ping to google.com.

Tutorials and Reviews

LagMeter 1.9.3: Review By: UltiByte

LagMeter 0.1: Review By: BrandonHopkins

LagMeter 0.1: Review By: ValBGaming
Some of them are a little out of date, but you get the idea.

Download

CI/build (Jenkins) server
You can always pick up the latest compiled version of LagMeter on my CI server. Note that BukkitDev doesn't warrant the safety of these builds, etc, but it's all pulled from GitHub anyways, so you could compile it yourself or look at the commits. Lagmeter is more stable than Lagmeter-bleed.

Jenkins: latest builds

Stable
Version: 1.17.0
Build date: 3 March 2016

BukkitDev Download: Latest Build

Javadocs
Version: 1.15.0
Build date: 23 November 2013

Dropbox Download (zipped; standard doclet)

Source Code

GitHub: TheLunarFrog's Source

GitHub: Original Source by DemmyDemon (v.0.4)

Bugs and Feature Requests

Bug reports & Feature Requests

Features

Simple, minimum-fuzz installation
Configurable without drowning you in options
Checks the server performance
Ability to check the ping between the server and Google.com
When someone says "GAH! LAG!", you can /lag, and tell them "Dude, it's your computer sucking."
Supports Bukkit's built-in permissions system, for example via [the official plugin](http://forums.bukkit.org/threads/permissionsbukkit-official-default-groups-plugin-1000.26785/)
Support for the "old-school" Permissions, as well as PermissionsEX
Logging of the lag, if you want it.
Logging of players online, with the above, if wanted.
Suggestions?

Change Log

Commands & Permissions

Configuration Explanation

Configuration

Example output:

[####################] 20.0 TPS

...or if your server isn't doing so hot...

[##########__________] 10.0 TPS

Comments

_ForgeUser11728373
- Join Date: 6/24/2013
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#407 _ForgeUser11728373

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Posted Jul 10, 2013
Update this!

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TheLunarFrog
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#406 TheLunarFrog

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Posted Jul 9, 2013
@Baffu

What's wrong with them?

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_ForgeUser6979212
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#405 _ForgeUser6979212

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Posted Jul 7, 2013
What happened to the entity count for worlds in the latest version?

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TheLunarFrog
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#404 TheLunarFrog

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Posted Jul 4, 2013
@Bodyash

The reason the ping command doesn't work is because your server isn't in English; therefore, the plugin expects a certain input from the ping process (which is in English), but gets Russian, which is why you're seeing tons of random ASCII characters. I'll attempt a fix at this soon. In the end, the server administrator will likely have to insert what the plugin will look for into the configuration.

Translation was also planned.

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_ForgeUser10407409
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#402 _ForgeUser10407409

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Posted Jul 3, 2013
Any help for me?

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TheLunarFrog
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#401 TheLunarFrog

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Posted Jul 2, 2013
@DevChaiiin

LagMeter will always work with any Bukkit update, as long as the very basic and core features of Bukkit do not change. They will likely never change as well, as it would involve breaking literally almost every plugin that ever existed.

Most of the code utilizes native Java code, so it would be more likely that Java updates would break it – but for the same reason, it won't happen.

If I were to abandon LagMeter, the plugin wouldn't break. It would just stop receiving updates for new features.

Last edited by TheLunarFrog: Jul 2, 2013

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_ForgeUser11767793
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#400 _ForgeUser11767793

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Posted Jul 2, 2013
LagMeter is still working on 1.6 which is awesome

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_ForgeUser9000084
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#399 _ForgeUser9000084

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Posted Jun 30, 2013
@TheLunarFrog

Nice to see you back. ;) Continue the great development.

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_ForgeUser10407409
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#398 _ForgeUser10407409

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Posted Jun 30, 2013
http://cs416922.vk.me/v416922094/5b5a/ynqScePw-p8.jpg

Windows 7 x64. Now /ping works (but fix for linux)

Can i translate this message? Lang.yml or smthg? Using Spigot and Cpfix plugin (Russian Server)

Last edited by _ForgeUser10407409: Jul 1, 2013

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TheLunarFrog
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#397 TheLunarFrog

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Posted Jun 30, 2013
@SharpMelon

@TanveerGT5

@comniemeer

This issue has been fixed in 1.14.1, which has been uploaded. Waiting on approval. Sorry about the issue.

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_ForgeUser10216823
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#396 _ForgeUser10216823

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Posted Jun 30, 2013
I would just like to inform the developer that I am having the same issues as listed below in previous posts with the new version.

Last edited by _ForgeUser10216823: Jun 30, 2013

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_ForgeUser7341463
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#395 _ForgeUser7341463

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Posted Jun 30, 2013
the /mem stopped working after the update! 2013-06-30 11:42:04 [WARNING] Unexpected exception while parsing console command "mem" org.bukkit.command.CommandException: Unhandled exception executing command 'mem' in plugin LagMeter v1.14.0

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:546) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchServerCommand(CraftServer.java:535) at net.minecraft.server.v1_5_R3.DedicatedServer.an(DedicatedServer.java:263) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:228) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)

Caused by: java.util.UnknownFormatConversionException: Conversion = '3'

at java.util.Formatter.checkText(Unknown Source) at java.util.Formatter.parse(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.lang.String.format(Unknown Source) at main.java.com.webkonsept.minecraft.lagmeter.LagMeter.sendMemMeter(LagMeter.java:986) at main.java.com.webkonsept.minecraft.lagmeter.LagMeter.onCommand(LagMeter.java:547) at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ... 8 more

Last edited by _ForgeUser7341463: Jun 30, 2013

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_ForgeUser7781625
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#394 _ForgeUser7781625

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Posted Jun 30, 2013
@rotiripsnoc

You can you use a batch script to restart the server. I have one for windows but i think you can adapt it to work on linux.

So every time the TPS dorp under a certain value you can execute /stop to stop the server and the script will automatically restart it.

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TheLunarFrog
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#393 TheLunarFrog

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Posted Jun 30, 2013
@comniemeer

Looking into this.

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comniemeer
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#392 comniemeer

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Posted Jun 30, 2013
Every time I use the /mem command in version 1.14.0, I get this StackTrace:

2013-06-30 11:42:04 [WARNING] Unexpected exception while parsing console command "mem" org.bukkit.command.CommandException: Unhandled exception executing command 'mem' in plugin LagMeter v1.14.0

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:546) at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchServerCommand(CraftServer.java:535) at net.minecraft.server.v1_5_R3.DedicatedServer.an(DedicatedServer.java:263) at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:228) at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472) at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404) at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)

Caused by: java.util.UnknownFormatConversionException: Conversion = '3'

at java.util.Formatter.checkText(Unknown Source) at java.util.Formatter.parse(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.util.Formatter.format(Unknown Source) at java.lang.String.format(Unknown Source) at main.java.com.webkonsept.minecraft.lagmeter.LagMeter.sendMemMeter(LagMeter.java:986) at main.java.com.webkonsept.minecraft.lagmeter.LagMeter.onCommand(LagMeter.java:547) at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ... 8 more

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TheLunarFrog
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#391 TheLunarFrog

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Posted Jun 27, 2013
@Bodyash

Pinging does not utilize a port.

You'd have to give java.exe ICMP/UDP/TCP output permission.

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_ForgeUser10407409
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#390 _ForgeUser10407409

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Posted Jun 27, 2013
@TheLunarFrog

On which port?

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TheLunarFrog
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#386 TheLunarFrog

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Posted Jun 25, 2013
@Bodyash

Check your firewall. The ping command defaults to pinging google.com, but your firewall can block pings, even when they originate from you (because the server will send a bounceback packet).

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_ForgeUser10407409
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#385 _ForgeUser10407409

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Posted Jun 25, 2013
/lping doesn`t works :c

/ping too

Running Spigot (Maybe this bug on Bukkit too)

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TheLunarFrog
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#384 TheLunarFrog

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Posted Jun 24, 2013
@rotiripsnoc

There's no such ability as to restart the server, from the server. Sorry.

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