[🐛 Bug]: 'webdriver.Chrome()' started slowly

[szh-bash]

What happened?

run this code


2025-02-09 13:31:28 -> 1739079088.0
chromdriver.log start with [1739079187.0]
which means it took exactly 99s to start webdriver.Chrome() and matched the log that i printed.

After I added 'chrome_options.add_argument("--proxy-connection-timeout=20")', got this log, stuck issues got prevented.

looks like there's an issues about set-proxy-server-timeout (which was "socks5://127.0.0.1:7890" or “http://127.0.0.1:7890" supported by mixed-port-clash)

However, i still got stuck issue even after i removed "--proxy-server".

I have no idea what happened.

By the way, this is a small probability event.

How can we reproduce the issue?

selenium 4.28.1
ChromeDriver 132.0.6834.159 
Google Chrome 132.0.6834.159
Clash v1.17.0
Python 3.10.12
Ubuntu 22.04.4 LTS (GNU/Linux 5.15.0-94-generic x86_64)

happened randomly

Relevant log output

None

Operating System

Ubuntu 22.04.4 LTS (GNU/Linux 5.15.0-94-generic x86_64)

Selenium version

selenium 4.28.1

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

Google Chrome 132.0.6834.159

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

ChromeDriver 132.0.6834.159

Are you using Selenium Grid?

idk, just pip install Selenium

[github-actions]

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

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Thank you!

[kool79]

@szh-bash Can be caused by the issue, described here: #15261.

[cgoldberg]

@szh-bash

The slow start might be related to Selenium Manager downloading browsers/drivers.

Set the following environment variables and try to reproduce the issue again:

• SE_OUTPUT=LOGGER
• SE_DEBUG=true
• SE_TRACE=true

For example:

$ SE_OUTPUT=LOGGER SE_DEBUG=true SE_TRACE=true python script.py

You should get more output in your terminal that you can report back here.

[szh-bash]

Hi @cgoldberg,

i got some log by ctrl-c with out these 3 environment variables. It appears to be a driver path issue, as both of you mentioned earlier.

Of course, I have added Google Chrome driver to my $PATH. However, is there a way to ensure Selenium consistently uses this setup to prevent unnecessary downloads?

^CShutting down process [3682419]...
02-26 14:20:57 [ERROR] uvicorn | Traceback (most recent call last):
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/driver_finder.py", line 67, in _binary_paths
    output = SeleniumManager().binary_paths(self._to_args())                                                                                                                                                                                                                              File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/selenium_manager.py", line 55, in binary_paths
    return self._run(args)
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/selenium_manager.py", line 129, in _run
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: Unsuccessful command executed: /home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/linux/selenium-manager --browser chrome --language-binding python --output json; code: -2
{}

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/starlette/routing.py", line 693, in lifespan
    async with self.lifespan_context(app) as maybe_state:
  File "/usr/lib/python3.10/contextlib.py", line 199, in __aenter__
    return await anext(self.gen)
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/nonebot/drivers/fastapi.py", line 154, in _lifespan_manager
    await self._lifespan.startup()
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/nonebot/internal/driver/_lifespan.py", line 66, in startup
    await self._run_lifespan_func(self._startup_funcs)
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/nonebot/internal/driver/_lifespan.py", line 55, in _run_lifespan_func
    await cast(ASYNC_LIFESPAN_FUNC, func)()
  File "/home/ubuntu/NoneBot/QBot/QBot/plugins/nonebot-plugin-dmo-universal/nonebot_plugin_dmo_universal/__init__.py", line 104, in do_something_on_startup
    chrome_driver = create_chrome_driver()
  File "/home/ubuntu/NoneBot/QBot/QBot/plugins/nonebot-plugin-dmo-universal/nonebot_plugin_dmo_universal/__init__.py", line 55, in create_chrome_driver
    return webdriver.Chrome(service=service, options=chrome_options) # 偶尔会很慢很慢怀疑和频繁 quit() 有关
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/chrome/webdriver.py", line 45, in __init__
    super().__init__(
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/chromium/webdriver.py", line 50, in __init__                                                                                                                                                        if finder.get_browser_path():
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/driver_finder.py", line 47, in get_browser_path
    return self._binary_paths()["browser_path"]
  File "/home/ubuntu/NoneBot/QBot/.venv/lib/python3.10/site-packages/selenium/webdriver/common/driver_finder.py", line 78, in _binary_paths
    raise NoSuchDriverException(msg) from err
selenium.common.exceptions.NoSuchDriverException: Message: Unable to obtain driver for chrome; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors/driver_location

[cgoldberg]

@szh-bash

If the driver can be found via $PATH, it should consistently find it and not download a new one. Is the error you posted before or after you added the correct driver directory to PATH?