selenium.common.exceptions.SessionNotCreatedException:消息:会话不是从选项卡创建的,使用 ChromeDriver Chrome Selenium Python 崩溃 [英] selenium.common.exceptions.SessionNotCreatedException: Message: session not created from tab crashed using ChromeDriver Chrome Selenium Python
问题描述
我在尝试访问脚本请求的 url 时显然遇到了这个错误,没有特定的.我不明白为什么会出现这个错误,但我想对其进行处理,以免在发生时中止脚本.
I am having this error apparently when trying to access a url that the script requests, does not have a specific. I don't understand exactly why this error, but I want to treat it so as not to abort the script when it occurs.
这会重复,但不能解决我的问题:如何避免错误:selenium.common.exceptions.SessionNotCreatedException: Message: session not created from tab crashed
This make duplicate, but not solution my problem: How to avoid the error: selenium.common.exceptions.SessionNotCreatedException: Message: session not created from tab crashed
代码:
from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--ignore-certificate-errors')
chrome_options.add_argument('--incognito')
chrome_options.add_argument('--headless')
driver = webdriver.Chrome("/driver/chromedriver", options=chrome_options)
错误:
Traceback (most recent call last):
File "scripts/page11.py", line 15, in <module>
driver = webdriver.Chrome(BASE_WEB_DRIVER, options=chrome_options)
File "/usr/local/lib/python3.8/site-packages/selenium/webdriver/chrome/webdriver.py", line 76, in __init__
RemoteWebDriver.__init__(
File "/usr/local/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py", line 157, in __init__
self.start_session(capabilities, browser_profile)
File "/usr/local/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "/usr/local/lib/python3.8/site-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
self.error_handler.check_response(response)
File "/usr/local/lib/python3.8/site-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: session not created
from tab crashed
(Session info: headless chrome=78.0.3904.108)
Chrome:Google Chrome 78.0.3904.108
和驱动程序:ChromeDriver 78.0.3904.105 (60e2d8774a8151efa6a00b1f358371b1e0e07ee2-refs/3904.105) 兼容.{}
Chrome: Google Chrome 78.0.3904.108
and driver: ChromeDriver 78.0.3904.105 (60e2d8774a8151efa6a00b1f358371b1e0e07ee2-refs/branch-heads/3904@{#877})
are compatible.
推荐答案
此错误信息...
selenium.common.exceptions.SessionNotCreatedException: Message: session not created
from tab crashed
(Session info: headless chrome=78.0.3904.108)
...表示 ChromeDriver 无法启动/生成新的浏览上下文,即 Chrome 浏览器 会话.
...implies that the ChromeDriver was unable to initiate/spawn a new Browsing Context i.e. Chrome Browser session.
这个问题有多种解决方案.但是,根据 UnknownError:会话因标签页崩溃而被删除 这个问题可以可通过以下任一解决方案解决:
There are diverse solution to this issue. However as per UnknownError: session deleted because of page crash from tab crashed this issue can be solved by either of the following solutions:
添加以下
chrome_options
:
chrome_options.add_argument('--no-sandbox')
另一个使其工作的选项是将 chrome_options
添加为 --disable-dev-shm-usage
.这将强制 Chrome 改用 /tmp
目录.这可能会减慢执行速度,因为将使用磁盘而不是内存.
Another option to make it work would be to add the chrome_options
as --disable-dev-shm-usage
. This will force Chrome to use the /tmp
directory instead. This may slow down the execution though since disk will be used instead of memory.
chrome_options.add_argument('--disable-dev-shm-usage')
如此有效,您的代码块将是:
So effectively, you code block will be:
from bs4 import BeautifulSoup
from selenium import webdriver
from selenium.webdriver.chrome.options import Options
chrome_options = Options()
chrome_options.add_argument('--no-sandbox')
chrome_options.add_argument('--ignore-certificate-errors')
chrome_options.add_argument('--headless')
chrome_options.add_argument('--disable-dev-shm-usage')
driver = webdriver.Chrome(executable_path='/driver/chromedriver', options=chrome_options)
来自标签页崩溃是Chromium 团队的 WIP(工作进行中),现在与 Linux 相关尝试始终将/dev/shm 用于不可执行的内存.以下是参考资料:
from tab crashed was WIP(Work In Progress) with the Chromium Team for quite some time now which relates to Linux attempting to always use /dev/shm for non-executable memory. Here are the references :
- Linux:Chrome/Chromium SIGBUS/啊,快!在小/dev/shm 上
- Chrome 在/dev/shm 时崩溃/无法加载太小,位置不能被覆盖
- 根据 Comment61#Issue 736452 修复似乎已经登陆 Chrome v65.0.3299.6
- Linux: Chrome/Chromium SIGBUS/Aw, Snap! on small /dev/shm
- Chrome crashes/fails to load when /dev/shm is too small, and location can't be overridden
- As per Comment61#Issue 736452 the fix seems to be have landed with Chrome v65.0.3299.6
您可以在 未知错误:会话因未知错误导致页面崩溃而被删除:无法确定 ChromeDriver Selenium 崩溃的选项卡的加载状态
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