[🐛 Bug]: Selenium server connected to with driver.Remote() hangs on set_window_size

[CalebKierum]

What happened?

I have a Selenium instance I am running in one process. That process just exists to keep that Selenium driver alive.

Another process occasionally spins up and connects to that driver with

    options = webdriver.ChromeOptions()
    driver = webdriver.Remote(command_executor=stateDict['url'],options=options)
    driver.close()   # this prevents the dummy browser
    driver.session_id = stateDict['session_id']

And then runs driver.set_window_size(1080, 962)

This works great for awhile but eventually this call to set_window_size just freezes. It doesn't return an error it doesn't do anything really. Just freezes.
Even calls like performance_log = driver.get_log('performance') simply hang without returning anything.

The window is still open and the original process is still going so I am not sure what is happening here or how to diagnose further. Happy to dig if I know what to look for.

How can we reproduce the issue?

Create a Selenium Chrome Driver in a background process in VNC.
Leave it sit for hours.

In another process over SSH connect to it remotely. Periodically call set_window_size and see if it finishes that call. At some point it won't.

Relevant log output

None unfortunately.

Operating System

PiOS

Selenium version

4.12.0

What are the browser(s) and version(s) where you see this issue?

Chromium 113.0.5672.95 Built on Raspbian , running on Raspbian 11

What are the browser driver(s) and version(s) where you see this issue?

113.0.5672.95-rpt1) ChromeDriver (917deeefba48411c7b40ba19aef7b229bf48acd7-refs/branch-heads/5672_63@{#13})

Are you using Selenium Grid?

No response

[github-actions]

@CalebKierum, thank you for creating this issue. We will troubleshoot it as soon as we can.

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Thank you!

[CalebKierum]

If it helps something I did notice about driver.set_window_size is that it's just temporary. Right after I do that I take a screenshot. And the screenshot has the webpage rendered the proper size. However if I look in VNC its as though the browser was never that size.

[titusfortner]

This is a driver issue. I would send you to Google, but Google doesn't have a driver for that architecture, so they may not be looking to debug it, either.

[CalebKierum]

@titusfortner ah! Good to know. Is there a recommended driver for that architecture?

[CalebKierum]

And is there any way to detect that that driver issue had occurred so I can recover from it? I can of course observe if the process hangs for too long but something more concrete would be useful.

[github-actions]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.