Locust web interface not starting on Windows

[cgikoray]

C:\Development\Test>locust -f main.py
[2013-02-27 19:30:11,346] INFO/locust.main: Starting web monitor on port 8089
[2013-02-27 19:30:11,348] INFO/locust.main: Starting Locust 0.6.2

...And then it never gets past this point. I am using the example locust file from the website for main.py

from locust import Locust, TaskSet, task

def index(l):
    l.client.get("/")

def stats(l):
    l.client.get("/stats/requests")

class UserTasks(TaskSet):
    # one can specify tasks like this
    tasks = [index, stats]

@task
def page404(self):
    self.client.get("/does_not_exist")

class WebsiteUser(Locust):
    host = "http://127.0.0.1:8089"
    min_wait = 2000
    max_wait = 5000
    task_set = UserTasks

I am running Windows 7. Any ideas on what I could be doing wrong? Would be happy to clarify more information.

[heyman]

Hi! There seems to be an indentation error in the pasted code (compared to the example file). The output from running locust looks fine, so you should probably be able to just access http://localhost:8089/

Anyway, since you closed the issue, I assume you figured it out :).

Btw, you should be fine using Locust on Windows while developing your tests. However, once you want to actually simulate a lot of users, I would strongly recommend running that on a Linux/Unix system (for example Ubuntu), since we've seen strange issues with gevent/windows when having lots of connections (I think this is Windows' fault and not gevent).

[cgikoray]

Hey heyman,

Thank you for the response, I felt a bit stupid as I figured out my issue literally moments after posting it -- after staring at it for some time, no less. About the Windows problems that sucks to here :( What sort of user load are you talking about where you start to see issues? Hundreds? Thousands?

[heyman]

If I remember correcly (this was more than a year ago) we started seeing strange stuff when we got up to a couple of hundred requests per second. So with an average waiting time of 30 seconds, that would be a few thousand simultaneous users. I guess it also could have been something with that windows environment, so you could always try with more, but keep it in mind. Locust on linux is pretty well tested and should be quite stable though.

[cgbystrom]

What sort of user load are you talking about where you start to see issues?

The boring answer is "it depends". If you do a lot of CPU intensive work, like traversing and parsing HTML DOM it can affect greatly. Also, since Locust is event-driven I would advice not go above 80% CPU usage as it will throw off all timings when it gets saturated.

[katmaiwalker]

Hi there,
I have a similar question like above , the locust web interface does not appear.

Here are details for my try:
Recently i installed locust in windows and i used the http://docs.locust.io/en/latest/quickstart.html quickstart.
Currently i have locally a web application running in http://127.0.0.1:8080.
So i used the command line and i navigated to the directory with the file locustfile.py.
Subsequently i executed the command: locust --host=http://127.0.0.1:8080

Unfortunatelly the http://127.0.0.1:8089 link does not display the locust web interface.
Do you have any idea what is the root cause and how to resolve it.

Thank you

[thanhma]

I had the same problem.

After hopeless searching, I tried navigating http://localhost:8089 and web interface appeared like miracle.

Give it a try guys.

[frostHit]

i have the same issue on windows7.
i follow the example in the quickstart http://docs.locust.io/en/latest/quickstart.html
and type locust in the windows cmd window. it shows starting web monitor at *:8089 but failed to get it the web page on localhost:8089

[frostHit]

@konstantinosalvertis hi, did you close this issue? i am facing the same issue.

[cgoldberg]

but failed to get it the web page on localhost:8089

@frostHit I don't know what that means. did you open a browser and try loading http://localhost:8089?

btw, this issue was closed over 5 years ago. Please open a new one if you actually have an issue.

[katmaiwalker]

@frostHit Hi, I couldn't find any workaround for the issue as I remember related to windows 7. Subsequently I set up a Linux server and locust worked fine.

[NullP0inter]

Strange http://127.0.0.1:8089/ doesn't work but http://localhost:8089/ does.