Total RPS Charts | Failures line chart does not display current number of failures

[borget]

Prerequisites

• I am using the latest version of Locust
• I am reporting a bug, not asking a question

Description

The failures line chart does not show the current number of failures over time.

I have to refresh the page to get the line chart updated on the chart, The green RPS line does update and show up however the red line goes to 0 and it stays there.

1. Opens the charts tab
2. The next time the chart refreshes the failures line goes to zero and stays there

3. Refresh the page to see the failures.
4. Red line goes to zero and stays there over time.
   

Command line

-f my_test.py --autostart --modern-ui

Locustfile contents

N/A

Python version

3.11

Locust version

2.18.3

Operating system

MacOS

[cyberw]

Ping @andrewbaldwin44

[andrewbaldwin44]

Hi @borget, I had the tests running for over ten minutes and I was not able to reproduce your issue. Could you please add some more information?

• Are you able to reproduce this issue using the old UI?
• If possible, could you include the contents of your locust file?

[borget]

Hi @borget, I had the tests running for over ten minutes and I was not able to reproduce your issue. Could you please add some more information?

Hi @andrewbaldwin44,

Absolutely,

• Are you able to reproduce this issue using the old UI?

No I am not, the issue is not present in the old UI when running the same test.

• If possible, could you include the contents of your locust file?

Below relevant details about the locust file,

class FastUser(FastHttpUser):
    tasks = [FastUserTasks]


class FastUserTasks(TaskSet):
    @tag("Task1")
    @task(1)
    def task1(self):
        """
        I omitted how below variables are generated. Overall, there is some logic that generates protobuf messages
        that are sent as binary over http post action when executing the tasks, I have around 22 tasks that send 
        different protobuf messages.
        """
        self.client.post(
            url,
            name=f"/{message_type}",
            data=message,
            headers={
                "Content-Type": "application/octet-stream"
            }
        )

Please let me know if you need any extra information.