Troubleshooting

This page contains a number of common issues and how you can troubleshoot and resolve them.

Topics

Duplicate UUIDs in database

This is most frequently caused by running a cracked "offline mode" network of servers. We don't provide support for problems caused by cracked servers and the most advice we can offer you is:

• Ensure bungee_online_mode is set to the correct value in the paper.yml config file on each of your Bukkit servers
• Ensure your authenticator plugin is passing valid, unique IDs to each backend Spigot server.

Cannot set data with newer Minecraft version than the server

This is caused when you attempt to downgrade user data from a newer version of Minecraft to an older one, or when your Spigot servers are running mismatched Minecraft versions.

HuskSync will identify this and safely prevent the synchronization from occuring. Your Spigot servers must be running the same version of both Minecraft and HuskSync.

User data failing to synchronize

This can occur due to misaligned timings between your Spigot servers and your Redis server. HuskSync has a built in way of tuning this. Try continously increasing the network_latency_milliseconds option in your config to a higher value.

Synchronization issues with Keep Inventory enabled

On servers that use Keep Inventory move (where players keep their items when they die), you can run into synchronization issues. See Keep Inventory for details on why this happens and how to resolve it.

Exceptions when compressing data via Snappy (lightweight Linux distros)

Some lightweight Linux distros such as Alpine Linux (used on Pterodactyl) might not have the dependencies needed for the Snappy compressor. It's possible to disable data compression by changing compress_data to false in your config. Note that after changing this setting you will need to reset your database. Alternatively, find the right libraries for your distro!

Redis connection problems on Pterodactyl

If you are hosting your Redis server on the same node as your servers, you need to use 172.18.0.1 (or equivelant if you changed your network settings) as your host. You may also need to allow connections from your firewall depending on your distribution.

MySQL connection problems on Pterodactyl

If you have more than one MySQL server connected to your panel, you may need to set useSSL=true in the parameters.

Issues with player data going out of sync during a server restart

This can happen due to the way in which your server restarts. If your server uses either:

• /restart (this is a weird Spigot command that uses legacy bash scripting)
• ANY restart plugin, e.g. UltimateAutoRestart (these basically execute an API-called restart using the same legacy bash logic as per above)

These are not compatible with HuskSync in most cases due to the way in which this causes restart servers causing shutdown logic to process in strange and unpredictable orders, usually before HuskSync has had a chance to scan and perform its shutdown logic. To safely restart your server, please use:

• A Pterodactyl task to perform a Restart. This executes the Power Action program stopcode (and then execute the startup command when the container has terminated)
• A cronjob to send a stop command / Power Action program stopcode, listen for the service to fully terminate, and then execute your startup command
• For manual restarts, executing /stop and starting your server up with the startup command is totally fine.

It's not a great idea to use a plugin to handle restarts. Plugins are only able to operate when your server is turned on and must rely on scripts which don't safely shutdown servers when restarting.