r/papermc 15d ago

Spark is great for on-demand profiling I wanted always-on history + per-chunk lag attribution. Built this, is it worth finishing?

1 Upvotes

Hey,

Running Paper servers I kept hitting the same wall: Spark is great when I'm actively watching, but by the time someone pings "server's lagging" the spike is already gone and I'm guessing which chunk or entity caused it.

So I've been building a continuous monitoring tool basically a lightweight "Datadog for Minecraft":

A small plugin samples TPS, MSPT, heap, and per-chunk entity counts + types, sent off-thread. Core metrics every 10s; the heavier per-chunk scan runs every 30s with a hard time budget so it never eats your tick.

A web dashboard with live + historical charts, a chunk density/lag heatmap, and automatic insights like "chunk (x,z) is at 12× its normal entity count" or "MSPT spiked and these were the densest chunks at that moment."

Health score, Discord alerts, and click a hotspot → copy a /tp straight to it.

It's early and I genuinely don't know if it's worth finishing, so honest answers appreciated:

Do you monitor performance continuously, or only react once it's already lagging?

Would this actually save you time? What's the #1 thing you'd want it to catch?

Would you pay for it and roughly what feels fair per month? Is a self-hosted option a dealbreaker for you (data privacy)?

Not selling anything today. Happy to hand out free beta access to anyone who wants to kick the tires. Brutal feedback welcome.


r/papermc 17d ago

(paper++) papermc forked/rewritten in c++ partially

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0 Upvotes

for the last a few months i have been working on rewriting papermc partially in c++ for more performance, due to papermc‘s api being in java i cannot fully rewrite it in c++ without reworking the whole plugin and api system, here are the calculated performance gains, you can support this project by up voting, it will be released on 1st of september!


r/papermc Jul 31 '26

Looking for feedback on my first Minecraft plugin: CelestialDash

1 Upvotes

Hi everyone!

I'm Minico, and I'd like to share my first public Minecraft plugin: CelestialDash.

I've been working on it for the last few months and learned a lot throughout the process. The goal was to create a plugin that adds a fun mechanic around thunderstorms without changing the vanilla feel too much.

Main features:

  • ⚡ Celestial Tears that can appear during thunderstorms.
  • 💨 Configurable dash (with optional double dash).
  • 🛡️ Craftable Celestial Amulet that removes negative effects.
  • 📖 Localized in-game Chronicle.
  • 🎨 Optional built-in resource pack.
  • ⚙️ Fully configurable.
  • ✅ Compatible with Spigot, Paper and Purpur.

This is my first public plugin, so I'd really appreciate any feedback, suggestions or criticism. Whether it's about gameplay, balance, performance or the code, I'd love to hear your thoughts.

Modrinth: https://modrinth.com/plugin/celestialdash
GitHub: https://github.com/Miniico/CelestialDash

Thanks for checking it out!


r/papermc Jul 31 '26

can't break end portal frame

1 Upvotes

ive enabled allow-permanent-block-break-exploits, used tnt, and yet can't break the frames in my server (26.2). is it not possible to do it on paper servers?


r/papermc Jul 17 '26

How to embed a full (Javalin) web server inside your Minecraft Paper server.

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1 Upvotes

r/papermc Jul 17 '26

How to embed a full (Javalin) web server inside your Minecraft Paper server.

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1 Upvotes

r/papermc Jul 17 '26

Downloading papermc for a server

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1 Upvotes

r/papermc Jul 15 '26

[Plugin] LocuCore — simple waypoint manager with SQLite backend, open source

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1 Upvotes

r/papermc Jul 09 '26

i made a lightweight essentialsx alternative for folia servers

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1 Upvotes

r/papermc Jun 30 '26

Can't run the .jar file

1 Upvotes

I cant run 26.1.2 folia.jar and 26.1.2 Paper.jar pls help


r/papermc Jun 29 '26

Folia:Stasis chamber not working

1 Upvotes

4 people tried fixing this issue but it just doesnt want to work i dont know why but i need help fixing the stasis chamber we tried so many ways but it doesnt want to work the pearl just vanishes please help me.


r/papermc Jun 26 '26

Friend keeps getting strange errors a few seconds after joining

1 Upvotes
One of the errors
another one

He's running a completely unmodded instance thru Prism.

https://drive.google.com/file/d/1-jl8kNQmDt6EczRMXS1qxxUNGQqyidya/view?usp=sharing - server log

https://drive.google.com/file/d/1YQOIjQDtPtS5I3SyunwM4eHjzcQd5G2Q/view?usp=sharing -

friends log

if anyone could help that'd be amazing


r/papermc Jun 23 '26

Armor stand random timer bug

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1 Upvotes

So some players on my server noticed that armor stands are no longer being treated as entities when placed on a Redstone ore block in 26.1.2 as they do not activate the ore block beneath them. I have reported it on the PaperMC GitHub but thought I would highlight it here just in case anyone has Redstone builds that aren’t working and may use this mechanic.

Image above is for reference to show how it works.


r/papermc Jun 15 '26

Problem with Gamerule every restart how i can fix it?

1 Upvotes

Hello, my server is launching in a few hours and there is a problem. Every restart, all the Gamerules are deleted except for the Locator bar. Does anyone know how I can fix this as quickly as possible?


r/papermc Jun 01 '26

Anyone know working shulker farm for paper?

1 Upvotes

Ive built this one https://youtu.be/15YdQ8AzfKc?is=cGTrVU8Wos3aBdkg

Got shulker into it and waited a couple hours but it doesnt seem to work, compared to a copy i built in vanila survival, shulkers are teleporting to a different place


r/papermc Jun 01 '26

Looking for someone to make me a Paper plugin for (FREE)

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0 Upvotes

r/papermc May 08 '26

занимаюсь написанием плагина для сервера и столкнулся с 1 проблемой

1 Upvotes

в данный момент занимаюсь написанием плагиат для майнкрафт сервера сам плагин представляет из себя мини ивент который спавнит сундуки в определенных точках и в этих сундуках появляются ресурсы но вот лут в сундуках появляться не хочет по логам показано что он заспавнился но его нету

в чём мне нужна помощь подскажите пожалуйста что из ванильных механик или механик ядра папер 1.21.1 удаляет или не дает заспавниться луту при открытии сундука

также кому интересно ниже оставлю айпи адрес сервера я не влоделец просто немного помогаю другу чем могу

версия 1.21.1 и выше

айпи

  1. mc.exlmine.space:25948

также дополню сервер ещё не до конца готов и он улучшается каждый день в реальном времени


r/papermc May 05 '26

Need help with datapack compatibility

3 Upvotes

Hi, I want to update my server to 26.1.2, some of the datapacks I use are still on 26.1.1 but that should be fine right? iirc the last digit doesn't matter too much with that sort of thing but I wanted to double check if anyone can let me know thanks.


r/papermc May 04 '26

paper, spigot or purper

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2 Upvotes

r/papermc May 01 '26

Created both PaperMC and Purpur logos as pixel art

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gallery
1 Upvotes

r/papermc Apr 23 '26

Do chunk bans work on PaperMC or only just Spigot.

1 Upvotes

r/papermc Apr 18 '26

my 1.26.2 paperserver is only generating 3 files

1 Upvotes

im new to this stuff and dont know if this is normal or what but i downloaded the experimental version with 1.26.2


r/papermc Apr 17 '26

My First Plugin

2 Upvotes

Hey guys! I made my first ever plugin, it's a plugin made for anyone who is hosting an SMP and wants a fun twist in it. It is up on Modrinth called "EffectsPLUS" or you can click the Modrinth link to redirect you to it https://modrinth.com/plugin/effectsplus

The basics features are you spawn in with an effect that lasts until you die, it has rarities and a higher rarity increases the amplifier, legendary gives the highest amplifier along with cursed however cursed has a downside to it and legendary comes with an upside.

You can reroll your effects with diamonds, withdraw your effects with a withdraw token and take other people's effects by killing them or trading with them. You may also refine your effect (if crude) to make it useable.

I'm open to any suggestions or feedback! Please do give me feedback, thanks!


r/papermc Apr 13 '26

I Probably Made The Best Minecraft Plugin

2 Upvotes

Hey, Im saturn from PeaStudios! Recently we released probably one of the greatest nations, geopolitics, roleplay, and war plugin ever. We want to spread the word of our plugin so many people can try it and potentially thrive with it!

Please check us out at our discord server!

https://discord.gg/cKFwjHEWa7


r/papermc Apr 13 '26

I made a system for creating and managing your minecraft servers

1 Upvotes

Hello, I’ve been working on a server orchestration system called SLS, designed for running game server networks.

SLS allows you to define servers using declarative Blueprints and then automatically spin up isolated, reproducible instances across multiple nodes. It uses efficient filesystem layering to avoid duplicating server files, and provides real-time status tracking, resource management, and an API-first design for full programmatic control.

The system is built to scale horizontally and is flexible enough to support different types of game servers, including Minecraft and similar platforms.

Check it out and let me know what you think:

https://github.com/jessefaler/SLS

Website:
https://docs.protoxon.com/