🔥 Tremora del Terra: ultimate hmac-file-server fix – final push before the drop 💾🔐

2025-07-18 11:18:34 +00:00
parent 3c87abcc80
commit de8fc326df
23 changed files with 360 additions and 2851 deletions
--- a/UPLOAD_COMPLETION_FIX.md
+++ b/UPLOAD_COMPLETION_FIX.md
@ -1,117 +0,0 @@
-# Upload Completion Issue - Diagnostic & Fix
-
-## Problem Analysis
-
-### User Report
- ✅ **Upload starts correctly**: HMAC validation working
- ✅ **Transfer completes**: File uploads without "endless encryption" delay
- ❌ **Final step fails**: "Not found" error after upload completion
-
-### Root Cause Identified
-The issue occurs in the **final storage step**, specifically in the deduplication process:
-
-#### Deduplication Process Steps
-1. **File Upload**: ✅ Completes successfully 
-2. **SHA256 Computation**: ✅ Working (now skipped for files >1GB)
-3. **File Movement**: ❌ `os.Rename()` and `os.Link()` operations failing
-4. **Hard Link Creation**: ❌ Causing "not found" response
-
-#### Technical Details
-```go
-// From helpers.go - Deduplication process
-if err := os.Rename(absFilename, existingPath); err != nil {
-    log.Warnf("Failed to move file for deduplication: %v", err)
-    return nil // Don't fail upload - BUT THIS MIGHT STILL CAUSE ISSUES
-}
-
-if err := os.Link(existingPath, absFilename); err != nil {
-    log.Warnf("Failed to create link after deduplication: %v", err)
-    // File restoration attempt may fail
-    return nil
-}
-```
-
-## Fix Applied
-
-### Immediate Solution
-```bash
-# Temporarily disabled deduplication to isolate the issue
-deduplication_enabled = false
-```
-
-### Testing Strategy
-1. **Upload with deduplication disabled**: Should complete successfully
-2. **Monitor file storage**: Verify files appear in upload directory
-3. **Check for "not found" errors**: Should be eliminated
-4. **Confirm client success**: XMPP clients should show successful upload
-
-## Expected Results
-
-### Before Fix (with deduplication)
-```
-Upload Process:
-1. HMAC validation: ✅ Success
-2. File transfer: ✅ Success  
-3. File created: ✅ Success
-4. Deduplication: ❌ Hard link failure
-5. Client response: ❌ "Not found"
-```
-
-### After Fix (deduplication disabled)
-```
-Upload Process:
-1. HMAC validation: ✅ Success
-2. File transfer: ✅ Success
-3. File stored directly: ✅ Success
-4. Deduplication: ⏭️ Skipped
-5. Client response: ✅ Success
-```
-
-## Long-term Solution Options
-
-### Option 1: Fix Deduplication Hard Links
- Investigate NFS hard link limitations
- Implement fallback to file copying instead of linking
- Add better error handling for link failures
-
-### Option 2: Disable Deduplication for Large Files Only
- Keep deduplication for small files (where it works)
- Disable only for large files that were causing issues
- Maintains storage efficiency for smaller files
-
-### Option 3: Alternative Deduplication Strategy
- Use symbolic links instead of hard links
- Implement reference counting system
- Store deduplicated files in separate location
-
-## Monitoring & Verification
-
-### Test Script Created
-```bash
-/root/hmac-file-server/test_upload_completion.sh
-```
-
-### Real-time Monitoring
- nginx access logs
- HMAC server logs  
- Upload directory file creation
- Client response verification
-
-## Current Status
-
-✅ **Deduplication disabled** to eliminate the storage failure  
-✅ **Upload speed optimized** (1GB limit prevents SHA256 delays)  
-✅ **Server running** with simplified storage process  
-🔄 **Testing phase** to confirm fix resolves "not found" issue  
-
-## Next Steps
-
-1. **Test upload completion** with current configuration
-2. **Verify client success** (no more "not found" errors)
-3. **Decide on long-term deduplication strategy** based on test results
-4. **Re-enable optimized deduplication** if hard link issues can be resolved
-
---
-*Issue: Final storage step failing in deduplication process*  
-*Fix: Deduplication temporarily disabled*  
-*Status: Testing upload completion*