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Server Architecture 🏗️

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Server Infrastructure

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Main Servers

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Network Architecture

Players
  ↓
Load Balancer (nginx)
  ↓
Hub Server (Paper)
  ↓
Survival / Creative / PvP / Bedrock
  ↓
Database (PostgreSQL)
Cache (Redis)

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Hosting Provider

• Provider: Premium Dedicated Servers
• Location: Multiple regions (US East, EU Central, AU Sydney)
• Uptime SLA: 99.9%
• DDoS Protection: Enterprise-grade protection
• Backup: Daily backups, 30-day retention

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Server Software

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Java Servers

• Latest versions for performance
• Regular security updates
• Plugin support

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Bedrock Server

• Official Microsoft server
• Cross-platform compatibility
• Regular updates

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Database

• Player accounts and progression
• Economy data
• Chat logs and moderation records
• Scheduled backups

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Cache Layer

• Session caching
• Real-time data
• Command rate limiting
• Performance optimization

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Performance Monitoring

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Uptime Monitoring

• Tool: Nagios + Grafana
• Alerts: Instant notifications
• Response Time: < 15 minutes
• Status Page: status.z-craft.xyz

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Metrics Tracked

• Server CPU and memory usage
• Player count and connection rate
• Network I/O and latency
• Database query performance
• Plugin performance
• Error rates and logs

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Performance Targets

• TPS (Ticks Per Second): 19.8-20 (optimal)
• Ping (Average): < 50ms
• Uptime: 99.9% monthly
• Database Response: < 100ms
• Backup Completion: < 30 minutes

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Backup & Disaster Recovery

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Backup Schedule

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Recovery Procedures

1. Notify players of outage
2. Stop all servers
3. Restore from latest backup
4. Verify data integrity
5. Restart servers gradually
6. Monitor for issues

• Restore specific world regions
• Recover player data
• Reverse recent transactions
• Update affected players

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Security Measures

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Network Security

• Firewall: Enterprise firewall with DDoS protection
• IP Filtering: Whitelist/blacklist for abuse prevention
• Rate Limiting: Prevent brute force attacks
• SSL/TLS: Encrypted connections
• VPN Access: For staff administration

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Server Security

• Plugin Validation: Scan all plugins before deployment
• Regular Updates: Security patches applied immediately
• Permissions: Minimal privilege principle
• Logs: Comprehensive audit trails
• Intrusion Detection: Monitor for unauthorized access

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Account Security

• Password hashing (bcrypt)
• Session tokens
• IP verification
• 2FA support
• Account lockout protection

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Performance Optimization

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Java Tuning

Memory: -Xmx28G -Xms28G (for 32GB server)
Garbage Collection: G1GC optimizations
Threads: CPU count matched

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Paper Optimizations

• Async chunk loading
• Entity-per-chunk limits
• Reduced lag generators
• Optimized pathfinding
• Efficient spawning algorithms

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Network Optimization

• Compression enabled for players > 100ms ping
• View distance adjustment per client
• Entity culling
• Chunk loading optimization
• Player list updates throttled

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Plugin Architecture

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Custom Plugins

• Economy System
• Land Claims
• Teleportation
• Player Shops
• Guild System
• Job System
• Quest System

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Plugin Communication

• EventBus for inter-plugin communication
• Shared API for data access
• Database synchronization
• Cache invalidation

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Plugin Safety

• Sandboxed execution
• Permission verification
• Crash isolation
• Memory limits per plugin
• Automatic restart on crash

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Scalability

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Current Capacity

• Max Players: 1000 per server
• Simultaneous Total: 5000+ across network
• Database: 1 million+ player records

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Scaling Strategy

• Add servers as player count grows
• Load balancer distribution
• Database replication

• Upgrade hardware specs
• Optimize code
• Cache improvements

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Growth Plan

• Monitor player growth
• Capacity planning quarterly
• Scale proactively
• Load testing before expansion

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Disaster Recovery Plan

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Natural Disasters

• Backup Data Centers: Multiple geographic locations
• Cloud Redundancy: Off-site encrypted backups
• Network Redundancy: Multiple ISP connections

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Cyberattacks

• DDoS Mitigation: Enterprise protection
• Incident Response: 24/7 monitoring
• Security Updates: Rapid patching
• Communication: Transparent player updates

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Data Loss

• Hourly Backups: Minimal data loss
• Encrypted Storage: Secure backup storage
• Recovery Testing: Monthly drills
• Multiple Copies: Geographically distributed