Nginx http upstream check status

Check upstream server number: 5, generation: 1

Index Upstream Name Status Rise counts Fall counts Check type Check port
0 web 127.0.0.1:8081 up 854589 0 http 0
1 web 127.0.0.1:8082 up 854487 0 http 0
2 test 127.0.0.1:8080 down 0 878112 http 0
3 blog 127.0.0.1:8071 up 17496 0 http 0
4 blog 127.0.0.1:8072 down 0 17833 http 0