Key components
  • LVS performs Layer-4 server load balancing.
    • Dr mode
    • Dual-LVS performs active-active mutual backup.
    • WRR is the algorithm used for server load balancing.
  • Tengine performs Layer-7 server load balancing.
    • The Alibaba Cloud high-performance HTTP servers developed on Nginx are open-source. For more details, refer to the official website.http://tengine.taobao.org
    • Proactive health checks
    • SPDY v3 support
  • Swift performs HTTP caching
    • High-performance cache
    • Disk (SSD/SATA)

Architecture diagram