MR InvSync
Fabric mod for syncing inventories and player data between minecraft servers
About this Mod
MR InvSync
This is a fabric mod that allows you to sync player inventories, health, food level, experience, score, status effects
and advancements across multiple servers or single player minecraft worlds.
SQLite, MySQL and Postgres are supported as data backends.
Why this fork?
This mod was initially forked from MrNavaStar. His original mod can be found on
github and modrinth.
Reasons for this fork are:
- At the time the project was forked, the database handling was messed up by using an all-in-one table for the player
data defined in SQLib - At the time the project was forked, for each SQL call a database connection was established
- Having a separate upstream for production environment testing
- Details are list in issue #1
You can support MrNavaStar by buying him a coffee!.
Installation
This mod requires Fabric and Fabric API.
This mod is available on modrinth with slug mr-invsync.
The project source is available on github/michiruf with the latest
readme here.
The configuration of the database must be identical between all servers that shall sync the inventory.
Example configuration
Path: /config/InvSync.mcfg
DATABASE_TYPE=SQLITE
DEBUG_DELETE_TABLES=false
SQLITE_PATH=./InvSync.db
MYSQL_DATABASE=InvSync
MYSQL_ADDRESS=mysql-host
MYSQL_PORT=3306
MYSQL_USERNAME=username
MYSQL_PASSWORD=password
POSTGRES_DATABASE=InvSync
POSTGRES_ADDRESS=postgres-host
POSTGRES_PORT=5432
POSTGRES_USERNAME=username
POSTGRES_PASSWORD=password
SYNC_INVENTORY=true
SYNC_ENDER_CHEST=true
SYNC_HEALTH=true
SYNC_FOOD_LEVEL=true
SYNC_XP_LEVEL=true
SYNC_SCORE=true
SYNC_STATUS_EFFECTS=true
SYNC_ADVANCEMENTS=true
SYNCHRONIZATION_DELAY=true
SYNCHRONIZATION_DELAY_SECONDS=1
SYNCHRONIZATION_DELAY_METHOD=SLEEP
INITIAL_SYNC_OVERWRITE_ENABLED=true
INITIAL_SYNC_SERVER_NAME=ServerA
License
Available Versions
How to Install MR InvSync on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (1.19.3).
Install Mod
Open the mod browser in the dashboard and search for "MR InvSync". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.19.3, 1.19.2, 1.19.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
MR InvSync server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.19.3). You can switch loaders with one click in the panel.
Is MR InvSync compatible with fabric?
MR InvSync officially supports fabric for Minecraft 1.19.3, 1.19.2, 1.19.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with MR InvSync – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if MR InvSync consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Install MR InvSync with just one click on your server.
