Locust: Download Report in multi-worker setup

[mezhaka]

Is your feature request related to a problem? Please describe.

I am frustrated that there's no "Download Report" in the multi-worker test, so I could see the summary of the test in the mult-worker environment.

Describe the solution you'd like

I'd like to have the "Download Report" link available in the multi-worker test. The report should aggregate the data from the workers.

[cyberw]

That it weird. Sounds like a bug. Just looking at the code I see no reason for it not to work in distributed mode.

I guess you are running locust ”normally”, not as a library?

This feature was implemented in https://github.com/locustio/locust/pull/1516

@taojy123 , I guess you tested it running distributed, right?

[taojy123]

@mezhaka Sorry, that should be my problem.

I turned off the statistics in worker mode because of a previous issue (https://github.com/locustio/locust/issues/1531#issuecomment-677572200), which may have caused this.

I'll try to optimize it by including the worker's statistics when exporting the report.

It may take some time.Then I'll make a new PR.

[cyberw]

I'm getting ready to release 1.3.2. Any chance you'll have time to fix it this soon? :)

[taojy123]

@cyberw
Sorry, I was very busy yesterday and the day before.
I tried to reproduce the problem on my computer today, but I found that the "Download Report" is available in multi-work mode. It works! 😂
The steps I followed are as follows.

locustfile.py:

from locust import HttpUser, between, task


class WebsiteUser(HttpUser):
    wait_time = between(1, 2)

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

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

Start a master and two workers:
locust -f locustfile.py --master
locust -f locustfile.py --worker
locust -f locustfile.py --worker

Then I go to http://localhost:8089 and see the web ui is fine.

Click to see statistics fine

@mezhaka
May I ask what your procedure is?

[mezhaka]

I am using docker-compose to run tests. I can reproduce it. I can send
you my setup later today when I get to the keyboard.

On Tue, Nov 3, 2020, 09:06 taojy123 [e-mail] wrote:

@cyberw https://github.com/cyberw
Sorry, I was quite busy the other day.
I tried to reproduce the problem on my computer today, but I found that
the export report function is available in multi-work mode.
The steps I followed are as follows.

code

Start a master and two workers
locust -f locustfile.py --master
locust -f locustfile.py --worker
locust -f locustfile.py --worker

Then I go to http://localhost:8089 and see a button to download the
report.
Click to see statistics

@mezhaka https://github.com/mezhaka
May I ask what your procedure is?

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[taojy123]

I see! The docker image with latest tag is too old (v1.1), and the master is the newest.

See this page on DockerHub: https://hub.docker.com/r/locustio/locust/tags

You should modify your docker-compose.yml like this:

version: '3'

services:
  master:
    image: locustio/locust:master
    ports:
     - "8089:8089"
    volumes:
      - ./:/mnt/locust
    command: -f /mnt/locust/locustfile.py --master -H http://master:8089

  worker:
    image: locustio/locust:master
    volumes:
      - ./:/mnt/locust
    command: -f /mnt/locust/locustfile.py --worker --master-host master

(add a tag name on image)

[cyberw]

I've reached out to @heyman to see if he can give me the correct permissions to fix the latest image.

[cyberw]

I have fixed the build process so that any tagged commit will build locustio/locust:latest (and tagged 1.3.2).

Is this fixed now or is there still a problem?

[taojy123]

@mezhaka Please try again
There is not any problem if it works