🔁 Server Restart Command

A simple server-side Fabric mod that lets Minecraft server owners restart their server from in-game or from the server console.

No client install needed. Players do not need this mod.

✅ What does it do?

Minecraft servers normally cannot start themselves again after they stop.

This mod fixes that by starting a small Java relauncher before the server shuts down.

The relauncher waits for the old server process to fully close, then starts the server again.

Simple. Clean. Useful.

🧠 How restarting works

When you run the restart command, the mod tries to restart the server in this order:

Uses start.bat on Windows or start.sh on macOS/Linux, if the file exists.
Uses launchCommand from the config file, if it is set.
Uses a safe fallback command:

java -Xmx4G -jar fabric-server-launch.jar nogui

⚠️ Fallback RAM warning

If the mod has to use the fallback 4 GB RAM command, it will warn operators after the server starts again.

This warning means the owner should set the real launch command in the config file for better restart behavior.

💬 Commands

/restart
/restartserver
/restart <delay_seconds>
/restartserver <delay_seconds>

⏱️ Example

/restart 60

This restarts the server after 60 seconds.

📦 Requirements

Minecraft 26.1, 26.1.1, 26.1.2, or 26.2
Fabric Loader 0.19.3 or newer

⚙️ Config file

config/server-restart-command.properties

🛠️ Example config

launchCommand=java -Xmx12G -jar fabric-server-launch.jar nogui
preferStartScript=true
defaultDelaySeconds=5
permissionLevel=4
defaultRamWarningDelaySeconds=60

📝 Important notes

This mod is server-side only.
Players do not need to install it.
This does not reload the server.
This means it is not the same as reloading datapacks.
It fully stops the server, then starts it again.
Operators can use the restart command by default.
For best results, use a proper start.bat, start.sh, or launchCommand.

🧱 Made for server owners who want one simple thing

Restart the server without touching the server window every time.