locust: error: no such option: -n

[qburst-preethi]

Description of issue / feature request

I tried to execute the following command,
"locust -c 10 -r 10 -n 10 --no-web -f locustfile.py"
but, got this error in terminal
"locust: error: no such option: -n"

Environment settings (for bug reports)

• OS: Ubuntu 16.04
• Python version:py 2.7.12
• Locust version: 0.9.0

[qburst-preethi]

Hey, I found that -n command is not supported in v0.9.0. I used '-t' command to specify the time period. If you want to use -n command, v0.8.0 is needed.

[wenger66]

why -n command is not support, i found this command is very useful

[cgoldberg]

we changed it to time based execution

[aldenpeterson-wf]

Adding to what @cgoldberg said, there are a lot of situations where the -n value is not precise too - fundamentally Locust cannot easily guarantee an explicit number of requests.

During startup, when distributed, when shutting down, etc all cause situations where the actual number of requests cannot match -n without significant changes to how Locust worked. This caused questions often why a server would register different numbers of requests, etc.

[rk4n3]

Please restore this lost functionality - realizing the nature of change/refactor needed, I'd still say its worth it.