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Version: 1.4

Installation

Requirements​

  • Velocity 3.4.0 or newer.
  • Java 25 or newer for the proxy runtime.
  • Geyser-Velocity or Floodgate when proxy presence reporting is needed.
  • SQLite for one proxy, or MySQL for multiple proxies sharing state.

Install Steps​

  1. Stop the Velocity proxy.
  2. Download doubledoors-velocity-<version>.jar from the releases page.
  3. Place the jar in the proxy plugins/ directory.
  4. Start the proxy once and confirm that DoubleDoors loads after Geyser/Floodgate.
  5. Edit plugins/DoubleDoors/proxy-config.properties if SQL heartbeat reporting is required.
  6. Restart the proxy after changing the configuration.

The proxy plugin does not replace the Bukkit/Paper plugin. Install the Bukkit plugin separately on each backend server where doors are used.

Verify Installation​

  • Confirm the proxy log reports DoubleDoors initialization.
  • Confirm plugins/DoubleDoors/proxy-config.properties exists.
  • With SQL enabled, query dd_proxy_presence and verify a recent last_seen_epoch_ms value.
  • If Geyser/Floodgate is absent, heartbeat reporting is intentionally disabled.