S3 Storage Troubleshooting Guide
This guide helps you resolve common issues with S3 storage configuration and usage in Disciple.Tools.
Common Issues Overview
S3 storage issues typically fall into these categories:
- Connection and authentication problems
- File upload failures
- Access and permission errors
- Performance and timeout issues
- Configuration mistakes
Connection Issues
Test Connection Fails
Symptoms: The “Test Connection” button returns an error or times out.
Common Causes:
- Incorrect credentials
- Wrong endpoint URL
- Network connectivity issues
- Bucket doesn’t exist
- Insufficient permissions
Solutions:
- Verify Credentials
- Double-check Access Key and Secret Key
- Ensure keys are active and not expired
- Click Save, then use the Test Connection button in Disciple.Tools
- Check Endpoint URL
- For AWS S3: Leave endpoint blank or use
https://s3.amazonaws.com
- For MinIO: Use
http://your-server:9000
or https://your-server:9000
- For Backblaze B2: Use
https://s3.us-west-000.backblazeb2.com
- For Cloudflare R2: Use
https://your-account-id.r2.cloudflarestorage.com
- Verify Bucket Exists
- Check bucket name spelling
- Ensure bucket is in the correct region
- Verify bucket is accessible with your credentials
Authentication Errors
Error Messages:
- “Access Denied”
- “Invalid credentials”
- “Signature mismatch”
Solutions:
- Regenerate Access Keys
- Create new access keys in your provider console
- Update credentials in Disciple.Tools settings
- Test connection with new keys
- Check IAM Permissions (AWS)
- Ensure user has the following required S3 permissions
- Create Objects
- Read Objects
- Update Objects
- Delete Objects
- Verify bucket policy allows access
- Check for conflicting policies
- Verify Secret Key
- Ensure secret key is copied completely
- Check for extra spaces or characters
- Try re-entering the secret key
Upload Errors
File Upload Fails
Symptoms: Files fail to upload with error messages or timeouts.
Common Causes:
- File size exceeds limits
- Unsupported file type
- Network connectivity issues
- Insufficient storage space
- Permission problems
Solutions:
- Check File Size
- Verify the file is under your site’s upload limit (WordPress/server setting)
- Compress large images before upload
- Use appropriate file formats
- Verify File Type
- Ensure file type is supported
- Check file extension matches content
- Try converting to supported format
- Test Network Connection
- Check internet speed and stability
- Try uploading from different network
- Test with smaller files first
- Check Storage Space
- Verify S3 bucket has available space
- Check account storage limits
- Monitor storage usage
Upload Timeout
Symptoms: Uploads start but never complete or timeout.
Solutions:
- Increase Timeout Settings
- Check server timeout configurations
- Adjust PHP upload limits if possible
- Use smaller file sizes
- Optimize File Size
- Compress images before upload
- Use appropriate image formats
- Split large files if necessary
- Check Server Resources
- Monitor server memory usage
- Check disk space on server
- Verify PHP memory limits
Access and Permission Issues
Files Not Accessible
Symptoms: Uploaded files cannot be viewed or downloaded.
Common Causes:
- Incorrect bucket permissions
- Missing CORS configuration
- Presigned URL generation issues
- File path problems
Solutions:
- Check Bucket Permissions
- Ensure the credentials can PutObject, GetObject, DeleteObject, and ListBucket for the bucket
- Check object-level permissions if using bucket policies
- Avoid making the bucket public; Disciple.Tools serves files to authorized users
- Configure Cross-Origin Resource Sharing (CORS) (if needed)
- Most flows are server-side and do not require CORS
- Note: See your server-side provider’s documentation regarding updating CORS setup; which is beyond the scope of this documentation.
- If your setup makes browser-direct requests to the endpoint, allow GET and HEAD from your site origin
- Keep rules minimal; avoid wildcarding credentials
- Verify File Paths
- Check file keys in S3 console
- Ensure consistent naming conventions
- Verify site ID prefixes
Permission Denied Errors
Error Messages:
- “Access Denied”
- “Forbidden”
- “Insufficient permissions”
Solutions:
- Review IAM Policies (AWS)
- Ensure policies include required actions
- Check resource ARNs are correct
- Verify policy syntax
- Check Bucket Policies
- Verify bucket policy allows access
- Check for conflicting policies
- Ensure proper principal configuration
- Test with Minimal Permissions
- Create user with minimal required permissions
- Test each permission individually
- Gradually add permissions as needed
Configuration Issues
Wrong Provider Settings
Symptoms: Connection works but files aren’t stored correctly.
Common Causes:
- Incorrect path-style endpoint setting
- Wrong region configuration
- Provider-specific settings missing
Solutions:
- Path-Style Endpoint
- Commonly required for MinIO
- Not required for AWS S3, Backblaze B2, or Cloudflare R2
- Only enable if your provider requires it
- Region Configuration
- Use correct region for your bucket
- For some providers, use
auto
or us-east-1
- Check provider documentation for region requirements
- Provider-Specific Settings
- Review provider documentation
- Check for additional required settings
- Verify endpoint URLs are correct
Multi-Site Configuration Issues
Symptoms: Issues with multiple sites sharing storage.
Solutions:
- Site ID Prefixing
- Disciple.Tools automatically prefixes object keys with the current site ID
- No manual action is needed to separate sites when sharing a bucket
- In your provider’s bucket dashboard, you will see keys starting with your site ID
- Shared vs. Separate Buckets
- Consider using separate buckets for each site
- Implement proper access controls
- Monitor cross-site access
Slow Uploads
Symptoms: Files upload but take unusually long time.
Solutions:
- Check Network Speed
- Test upload speed to S3 directly
- Compare with other cloud services
- Check for network throttling
- Optimize File Sizes
- Compress images before upload
- Use appropriate file formats
- Consider progressive upload for large files
- Server Configuration
- Increase PHP memory limits
- Optimize server settings
- Check for resource constraints
High Storage Costs
Symptoms: Unexpected charges from S3 provider.
Solutions:
- Monitor Storage Usage
- Check bucket size and object count
- Review access patterns
- Identify large or unused files
- Implement Lifecycle Policies
- Set up automatic deletion of old files
- Move infrequently accessed files to cheaper storage
- Compress files when possible
- Optimize File Management
- Remove duplicate files
- Compress existing files
- Implement file retention policies
Error Messages Reference
Common Error Messages and Solutions
Error Message |
Likely Cause |
Solution |
“Access Denied” |
Wrong credentials or permissions |
Check credentials and IAM policies |
“Bucket not found” |
Wrong bucket name or region |
Verify bucket name and region |
“Signature mismatch” |
Wrong secret key |
Regenerate and re-enter secret key |
“Request timeout” |
Network or server issues |
Check network and server resources |
“File too large” |
Exceeds size limits |
Compress file or increase limits |
“Invalid file type” |
Unsupported format |
Use supported file format |
Getting Additional Help
Contact your system administrator or Disciple.Tools support if:
- All troubleshooting steps have been attempted
- Issues persist after configuration changes
- Error messages are unclear or unusual
- Multiple users are affected
When seeking help, include:
- Exact error messages
- Steps to reproduce the issue
- Configuration details (without credentials)
- Browser and device information
- Network environment details
Self-Service Resources
Next Steps