Common Issues and Solutions¶

This document covers the most frequently encountered issues with the Studio Platform and their step-by-step solutions.

🚨 Quick Fixes¶

System Not Responding¶

# 1. Check if services are running
docker-compose ps

# 2. Restart services if needed
docker-compose restart

# 3. Check system resources
docker stats

# 4. Clear system cache
docker-compose exec backend python manage.py clear_cache

Cannot Access Web Interface¶

# 1. Check if web server is running
curl -I http://localhost:8000

# 2. Check port availability
netstat -tulpn | grep :8000

# 3. Check firewall settings
sudo ufw status

# 4. Restart web service
docker-compose restart frontend

Database Connection Issues¶

# 1. Test database connectivity
docker-compose exec db psql -U studio_user -d studio_db -c "SELECT 1;"

# 2. Check database logs
docker-compose logs db

# 3. Restart database service
docker-compose restart db

# 4. Check database configuration
docker-compose exec db cat /var/lib/postgresql/data/postgresql.conf

🔐 Authentication Issues¶

Problem: Users cannot log in¶

Symptoms: - Invalid credentials error - Login page redirects to itself - Authentication loop

Solutions:

Check User Credentials

-- Verify user exists in database
SELECT username, email, is_active, last_login 
FROM auth_user 
WHERE username = 'problem_user';

Reset User Password

# Reset password via command line
docker-compose exec backend python manage.py changepassword username

Check Authentication Configuration

# Check authentication settings in docker-compose.yml
environment:
  - AUTHENTICATION_BACKEND=django.contrib.auth.backends.ModelBackend
  - LOGIN_URL=/login/
  - LOGIN_REDIRECT_URL=/dashboard/

Clear Session Data

# Clear all sessions
docker-compose exec backend python manage.py clearsessions

Token Expiration Issues¶

Problem: API tokens expire frequently¶

Symptoms: - 401 Unauthorized errors - Frequent re-authentication required - Session timeout errors

Solutions:

Adjust Token Expiration

# settings.py
SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(hours=24),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=7),
    'ROTATE_REFRESH_TOKENS': True,
}

Implement Token Refresh
```
async                  
```
id=__span-8-1>// Frontend token refresh logic class=w> function refreshToken() { try { const response = await fetch('/api/token/refresh/', { method: 'POST', headers: { 'Content-Type': 'application/json', }, body: JSON.stringify({ refresh: localStorage.getItem('refreshToken') }) }); const data = await response.json(); localStorage.setItem('accessToken', data.access); } catch (error) { console.error('Token refresh failed:', error); // Redirect to login window.location.href = '/login/'; } class=p>}

Permission Issues¶

Problem: Users cannot access certain features¶

Symptoms: - Access denied errors - Missing menu items - 403 Forbidden errors

Solutions:

Check User Permissions

-- Check user groups and permissions
SELECT 
    u.username,
    g.name as group_name,
    p.name as permission_name
FROM auth_user u
LEFT JOIN auth_user_groups ug ON u.id = ug.user_id
LEFT JOIN auth_group g ON ug.group_id = g.id
LEFT JOIN auth_group_permissions gp ON g.id = gp.group_id
LEFT JOIN auth_permission p ON gp.permission_id = p.id
WHERE u.username = 'problem_user';

Assign Required Permissions

# Add user to group
docker-compose exec backend python manage.py add_user_to_group username group_name

# Assign specific permission
docker-compose exec backend python manage.py add_permission username permission_codename

📁 File and Upload Issues¶

File Upload Failures¶

Problem: Cannot upload files¶

Symptoms: - Upload progress bar hangs - File size limit errors - Unsupported file type errors

Solutions:

Check File Size Limits

# settings.py
FILE_UPLOAD_MAX_MEMORY_SIZE = 52428800  # 50MB
DATA_UPLOAD_MAX_MEMORY_SIZE = 52428800  # 50MB
MEDIA_ROOT = '/app/media/'

Check Storage Permissions

# Check media directory permissions
ls -la /app/media/

# Fix permissions if needed
sudo chown -R www-data:www-data /app/media/
sudo chmod -R 755 /app/media/

Check Disk Space

# Check available disk space
df -h

# Clean up old files if needed
find /app/media/ -type f -mtime +30 -delete

Evidence Collection Issues¶

Problem: Evidence not appearing in system¶

Symptoms: - Uploaded files not showing - Metadata not being processed - Indexing delays

Solutions:

Check Processing Queue

# Check Celery workers
docker-compose exec worker celery -A studio worker status

# Restart worker if needed
docker-compose restart worker

Manually Trigger Processing

# Trigger evidence processing
docker-compose exec backend python manage.py process_evidence --evidence-id 123

Check Indexing Status

# Rebuild search index
docker-compose exec backend python manage.py rebuild_index

🌐 Network and Connectivity Issues¶

API Connection Problems¶

Problem: API endpoints not responding¶

Symptoms: - Connection timeout errors - 502 Bad Gateway errors - Slow API responses

Solutions:

Check API Service Status

# Check if API service is running
docker-compose exec backend curl -I http://localhost:8000/api/health

# Check API logs
docker-compose logs backend

Check Load Balancer Configuration

# nginx.conf
upstream backend {
    server backend:8000;
    keepalive 32;
}

server {
    listen 80;
    location /api/ {
        proxy_pass http://backend;
        proxy_set_header Host $host;
        proxy_connect_timeout 30s;
        proxy_send_timeout 30s;
        proxy_read_timeout 30s;
    }
}

Check Database Connection Pool

# settings.py
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql',
        'NAME': 'studio_db',
        'USER': 'studio_user',
        'PASSWORD': 'password',
        'HOST': 'db',
        'PORT': '5432',
        'OPTIONS': {
            'MAX_CONNS': 20,
            'MIN_CONNS': 5,
        }
    }
}

Integration Failures¶

Problem: Third-party integrations not working¶

Symptoms: - Integration status shows disconnected - Data not syncing from external services - Webhook failures

Solutions:

Check API Credentials

# Test integration API connectivity
curl -H "Authorization: Bearer YOUR_TOKEN" \
     https://api.thirdparty.com/endpoint

# Check stored credentials
docker-compose exec backend python manage.py check_integration --name integration_name

Verify Webhook Configuration

# Test webhook endpoint
curl -X POST https://studio.example.com/webhooks/integration \
     -H "Content-Type: application/json" \
     -d '{"test": "data"}'

# Check webhook logs
docker-compose logs | grep webhook

Reconfigure Integration

# Reset integration configuration
docker-compose exec backend python manage.py reset_integration --name integration_name

# Re-authenticate
docker-compose exec backend python manage.py authenticate_integration --name integration_name

🐛 Performance Issues¶

Slow Response Times¶

Problem: System responds slowly¶

Symptoms: - Page load times > 5 seconds - API calls timing out - High CPU usage

Solutions:

Check System Resources

# Check CPU and memory usage
docker stats

# Check database performance
docker-compose exec db psql -U studio_user -d studio_db -c "
SELECT query, calls, total_time, mean_time 
FROM pg_stat_statements 
ORDER BY total_time DESC 
LIMIT 10;"

Optimize Database Queries

-- Add indexes for slow queries
CREATE INDEX idx_evidence_created_at ON evidence_evidence(created_at);
CREATE INDEX idx_compliance_framework ON compliance_compliance(framework_id);

Enable Caching

# settings.py
CACHES = {
    'default': {
        'BACKEND': 'django_redis.cache.RedisCache',
        'LOCATION': 'redis://redis:6379/1',
        'OPTIONS': {
            'CLIENT_CLASS': 'django_redis.client.DefaultClient',
        }
    }
}

# Cache expensive queries
@cache_page(300)  # 5 minutes
def compliance_dashboard(request):
    # Dashboard logic here
    pass

Memory Leaks¶

Problem: Memory usage increases over time¶

Symptoms: - Out of memory errors - Container restarts - System becomes unresponsive

Solutions:

Monitor Memory Usage

# Monitor memory usage over time
docker stats --format "table &#123;&#123;.Container&#125;&#125;\t&#123;&#123;.CPUPerc&#125;&#125;\t&#123;&#123;.MemUsage&#125;&#125;\t&#123;&#123;.MemPerc&#125;&#125;"

# Check for memory leaks
docker-compose exec backend python -m memory_profiler manage.py runserver

Optimize Code

# Use generators instead of lists for large datasets
def get_large_dataset():
    for item in queryset.iterator():
        yield item

# Clear unused objects
import gc
gc.collect()

Adjust Memory Limits

# docker-compose.yml
services:
  backend:
    deploy:
      resources:
        limits:
          memory: 2G
        reservations:
          memory: 1G

📊 Data Issues¶

Data Corruption¶

Problem: Database data appears corrupted¶

Symptoms: - Inconsistent data - Missing records - Incorrect calculations

Solutions:

Check Database Integrity

# Run database consistency check
docker-compose exec db pg_dump -U studio_user studio_db > backup.sql
docker-compose exec db psql -U studio_user studio_db -c "SELECT * FROM pg_stat_user_tables;"

Restore from Backup

# Restore from recent backup
docker-compose exec db psql -U studio_user studio_db < backup.sql

Run Data Validation

# Validate data integrity
docker-compose exec backend python manage.py validate_data

Sync Issues¶

Problem: Data not syncing between components¶

Symptoms: - Different systems show different data - Updates not reflected everywhere - Inconsistent reporting

Solutions:

Check Sync Status

# Check sync queue
docker-compose exec worker celery -A studio inspect active

# Check last sync time
docker-compose exec backend python manage.py check_sync_status

Force Full Sync

# Trigger full synchronization
docker-compose exec backend python manage.py full_sync --integration integration_name

Verify Sync Configuration

# Check sync settings
sync_settings:
  interval: 300  # 5 minutes
  batch_size: 100
  retry_attempts: 3
  timeout: 60

🔄 Configuration Issues¶

Environment Variable Problems¶

Problem: Configuration not being applied¶

Symptoms: - Default settings being used - Environment changes not taking effect - Incorrect behavior

Solutions:

Check Environment Variables

# List current environment variables
docker-compose exec backend env | grep STUDIO_

# Check .env file
cat .env

Restart Services with New Config

# Recreate containers with new environment
docker-compose down
docker-compose up -d

Verify Configuration Loading

# Check if settings are loaded correctly
import os
print(f"DEBUG: {os.getenv('DEBUG', 'Not set')}")
print(f"DATABASE_URL: {os.getenv('DATABASE_URL', 'Not set')}")

SSL/TLS Issues¶

Problem: HTTPS not working¶

Symptoms: - Certificate errors - Mixed content warnings - Insecure connection warnings

Solutions:

Check Certificate Validity

# Check SSL certificate
openssl x509 -in /path/to/cert.pem -text -noout

# Check certificate expiration
openssl x509 -in /path/to/cert.pem -noout -dates

Verify Certificate Chain

# Test SSL configuration
openssl s_client -connect studio.example.com:443 -servername studio.example.com

Update Certificate

# Renew Let's Encrypt certificate
certbot renew --dry-run
certbot renew

📞 When to Contact Support¶

Critical Issues¶

Complete system outage
Data loss or corruption
Security breaches
Performance degradation affecting all users

Information to Provide¶

Error Messages - Exact error text and screenshots
System Information - Platform version, browser, OS
Timeline - When the issue started and any patterns
Recent Changes - Updates, configuration changes, deployments
Impact - Number of affected users and business impact

Support Channels¶

Emergency: +1-555-STUDIO (24/7)
Standard: support@cybergaar.com
Portal: support.cybergaar.com
Chat: Available on website

Preventive Maintenance

Regular system maintenance and monitoring can prevent many of these common issues. Set up automated alerts for system health metrics.

Before Making Changes

Always create a backup before applying fixes to production systems. Test solutions in a staging environment first.

Documentation Updates

If you encounter an issue not covered here, please document the solution to help others in the future.

Common Issues and Solutions¶

🚨 Quick Fixes¶

System Not Responding¶

Cannot Access Web Interface¶

Database Connection Issues¶

🔐 Authentication Issues¶

Login Failures¶

Problem: Users cannot log in¶

Token Expiration Issues¶

Problem: API tokens expire frequently¶

Permission Issues¶

Problem: Users cannot access certain features¶

📁 File and Upload Issues¶

File Upload Failures¶

Problem: Cannot upload files¶

Evidence Collection Issues¶

Problem: Evidence not appearing in system¶

🌐 Network and Connectivity Issues¶

API Connection Problems¶

Problem: API endpoints not responding¶

Integration Failures¶

Problem: Third-party integrations not working¶

🐛 Performance Issues¶

Slow Response Times¶

Problem: System responds slowly¶

Memory Leaks¶

Problem: Memory usage increases over time¶

📊 Data Issues¶

Data Corruption¶

Problem: Database data appears corrupted¶

Sync Issues¶

Problem: Data not syncing between components¶

🔄 Configuration Issues¶

Environment Variable Problems¶

Problem: Configuration not being applied¶

SSL/TLS Issues¶

Problem: HTTPS not working¶

📞 When to Contact Support¶

Critical Issues¶

Information to Provide¶

Support Channels¶