Bilibili's Capacity Management Platform: Design, Implementation, and S12 Event Support

This article details Bilibili's capacity management platform, addressing the challenges of resource waste and cost control in large-scale server operations. The platform provides a comprehensive capacity management system that includes foundational data, VPA-based scaling strategies, HPA-based elastic scaling, quota management, and capacity visualization. The system is designed to meet the needs of different stakeholders including development teams, platform teams, SREs, and cost departments.

The platform offers various visualization tools including cluster capacity monitoring, resource pool analysis, node utilization tracking, and application-level capacity reporting. It also provides business organization capacity reports that help identify resource usage patterns across different departments and services. The system includes capacity event tracking to quickly identify and resolve capacity-related issues, and generates weekly reports for both business and platform teams.

For large-scale events like S12, the platform provides comprehensive support through capacity pre-estimation, PaaS pooling, quota management, HPA/VPA scaling, elastic cloud scaling, and capacity inspection. The system helps reduce capacity-related release problems by 80% and capacity-related online failures by 90%.

Future plans include capacity risk control, elastic scaling with time-based scheduling and predictive scaling, and hot spot distribution optimization. The platform demonstrates how effective capacity management can significantly improve resource utilization, reduce costs, and enhance service stability for large-scale operations.