prerequsites
sudo apt-get install apache2-utils
2019/09/15 19:46:18 [error] 1510#1510: *699 no live upstreams while connecting to upstream, client: 10.0.2.2, server: _, request: "GET /backend HTTP/1.1", upstream: "http://backend/", host: "localhost:8080"ab -n 100 -c 100 http://localhost:8080/backend
This is ApacheBench, Version 2.3 <$Revision: 1807734 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient).....done
Server Software: nginx/1.14.0
Server Hostname: localhost
Server Port: 8080
Document Path: /backend
Document Length: 182 bytes
Concurrency Level: 100
Time taken for tests: 60.120 seconds
Complete requests: 100
Failed requests: 90
(Connect: 0, Receive: 0, Length: 90, Exceptions: 0)
Non-2xx responses: 10
Total transferred: 24760 bytes
HTML transferred: 3710 bytes
Requests per second: 1.66 [#/sec] (mean)
Time per request: 60119.613 [ms] (mean)
Time per request: 601.196 [ms] (mean, across all concurrent requests)
Transfer rate: 0.40 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 4 547 513.5 1027 1030
Processing: 418 31199 18887.4 30087 59086
Waiting: 418 31198 18887.4 30087 59086
Total: 1446 31746 19156.9 30092 60114
Percentage of the requests served within a certain time (ms)
50% 30092
66% 40091
75% 50096
80% 50100
90% 60108
95% 60110
98% 60114
99% 60114
100% 60114 (longest request)