ServerSync Continuous Upload Loop / Slow Sync to FileCloud Online

Original Question or Issue:

ServerSync is very slow when syncing/uploading files to FileCloud Online. The sync status continuously shows “Uploading Changes: XXXX / XXXXX” and restarts after completion. Files can take up to 2 hours to appear in FileCloud, while another ServerSync instance works normally with near real-time uploads.

Environment:

• Product - FileCloud ServerSync
• Version - 23.252
• Platform - Windows

Steps to Reproduce:

Error or Log Message:

No explicit error observed.
Behavior noted:

• Uploading Changes: XXXX / XXXXX continuously increasing
• Sync completes and immediately restarts
• Repeated upload cycles without stabilization

Defect or Enhancement Number:

Cause:

This issue is typically caused by one or more of the following:

• Continuous file modifications (e.g., by backup tools, antivirus, or other processes)
• Large number of files leading to prolonged scan and sync cycles
• ServerSync cache/database inconsistency causing repeated reprocessing
• Environmental differences between servers (network, performance, configuration)
• Potential repeated triggering of sync due to metadata or timestamp changes

Resolution or Workaround:

To resolve potential cache or sync loop issues, perform a clean rebuild of the ServerSync configuration:

1. Stop ServerSync

   • Exit ServerSync from the system tray (taskbar), as shown in the application UI

2. Remove Existing Sync/Cache Data

   • Navigate to the ServerSync data/cache directory
     • Delete the existing cache/data folder to allow a clean rebuild

3. Restart ServerSync

   • Launch ServerSync using:
     C:\Program Files\FileCloudServerSync\fssync.exe
   • Open ServerSync Settings
4. Reset data without Logout
   

Notes: