Problem description: The hardware configuration of the front-end server and the source server is as follows. The system is centos7: CPU: E5-2696V4*2(88 threads)Memory: 64GB DDR4Hard disk: 500GB SSD (about 450M/s for read/write) Both the front-end and back-end servers use nginx, and they can test concurrency independently. After the front-end reverse proxy connects to the back-end, […]