Early warning and treatment solutions for CDN (Content Delivery Network) resource exhaustion involve proactive monitoring, capacity planning, and mitigation strategies to ensure uninterrupted service delivery.
Real-time Monitoring: Implement tools to track key metrics like bandwidth usage, request rates, cache hit ratios, and origin server load. Set thresholds to trigger alerts when resource consumption approaches critical levels.
Example: Use Tencent Cloud's CDN Monitoring Dashboard to visualize traffic trends and receive alerts via SMS, email, or webhook when bandwidth exceeds predefined limits.
Predictive Analytics: Leverage historical data and machine learning to forecast traffic spikes, such as during product launches or seasonal events.
Example: Tencent Cloud's Big Data Analytics can analyze past CDN usage patterns to predict future demand.
Log Analysis: Regularly review access logs to identify abnormal traffic patterns, such as DDoS attacks or sudden surges from specific regions.
Traffic Throttling & Rate Limiting: Restrict excessive requests from specific IPs or regions to prevent resource abuse.
Example: Configure Tencent Cloud CDN Access Control to limit requests per second (RPS) from suspicious sources.
Cache Optimization: Improve cache hit ratios by fine-tuning cache policies (e.g., extending TTL for static content) to reduce origin server load.
Example: Use Tencent Cloud CDN Cache Rules to prioritize caching for frequently accessed files.
Auto Scaling & Load Balancing: Dynamically scale resources or redirect traffic to underutilized CDN nodes.
Example: Tencent Cloud CLB (Cloud Load Balancer) can distribute traffic across multiple CDN endpoints.
Origin Protection & Fallback Mechanisms: Use a backup origin server or enable "origin shielding" to minimize direct origin requests during peak loads.
Example: Tencent Cloud DCDN (Dynamic Route for Content Delivery Network) provides intelligent routing and origin protection.
DDoS Mitigation: Deploy anti-DDoS services to filter malicious traffic before it reaches the CDN.
Example: Tencent Cloud Anti-DDoS Pro can absorb and mitigate large-scale attacks.
By combining these solutions, businesses can proactively manage CDN resource exhaustion and maintain high availability.