HON’s Wiki # Minecraft (Bukkit)

Home / Game Servers

Contents

• Resource Requirements
  • Memory Usage
• Server Managers
• Server Variants
• Configuration
  • JVM Tuning

This page is intended for the Bukkit server software or any of its derivatives, like SpigotMC, PaperMC and Tuinity.

Resource Requirements

Memory Usage

• Allocate 1-10 GB per server, with 1G for tiny servers with few players and 10G+ for large servers with many players and worlds.
• The usage scales with the number of worlds, players and plugins, as well as how scattered throughout the world(s) the players are.
• Memory allocation for Minecraft or more about GC pressure than running completely out of memory, so deciding how much is enough can be hard.
• Memory usage is set using the Xmx parameter, which specified how much memory the JVM is allowed to use (excluding internal usage). The server is expected to use all of it, which does not mean that the server is out of memory. Xms, the initial memory allocation, should be the same as Xmx to avoid unused memory.
• Leave some of the available memory unused when setting Xmx, as the JVM internals, OS etc. requires memory too.
• See Tuning the JVM – G1GC Garbage Collector Flags for Minecraft (Aikar).

Server Managers

• Pterodactyl:
  • See Linux Server Applications: Pterodactyl).
  • Open-source and free to use.
  • Modern.
  • Generalized for many games and apps.
  • Somewhat complex setup.
• McMyAdmin 2:
  • Requires cheap license, but has a restricted free version.
  • Old, very common back in the day.
  • Replaced by AMP.
• AMP:
  • Haven’t tested it too much.

Server Variants

• Bukkit:
  • An open-source modification of the vanilla Minecraft server with a rich plugin API, increased configurability and other improvements.
  • Acquired by Mojang as part of hiring parts of the Bukkit team. Although, Mojang did not attempt to control the project.
  • Discontinued in 2014 due to project retirement and a following DMCA takedown from one of its biggest contributors (unofficial explanation). Due to the DMCA takedown, all pre-built images were removed and similar active projects had to find a way to provide the modified images without redistributing the vanilla Minecraft server.
  • The API (and project) is called “Bukkit”, while the implementation and modified vanilla server (net.minecraft.server or native Minecraft server (NMS)) is called “CraftBukkit”.
• SpigotMC:
  • A fork of Bukkit with enhancements.
• PaperMC:
  • A fork of SpigotMC with enhancements.
• Tuinity (merged back into PaperMC):
  • A fork of PaperMC (or EmpireCraft (EMC)) with enhancements.
  • Attempts to merge enhancements back into PaperMC, but with some resistance due to personal disagreements.

Configuration

JVM Tuning

See Tuning the JVM – G1GC Garbage Collector Flags for Minecraft (Aikar).

-Xmx and -Xms should be equal and set to an appropriate size. Remember to leave memory for JVM internals, the OS and other progrems.

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