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

我正在使用 InstaPy，它使用 Python 和 Selenium。我按照 Cron 启动脚本，但有时它会崩溃。所以它确实很不规则，有时它却贯穿得很好。我已经在 GitHub Repo 上发布了，但没有得到答案，所以我现在在这里询问是否有人知道原因。

这是一个数字海洋 ubuntu 服务器，我在无头模式下使用它。驱动程序版本在日志中可见。以下是错误消息：

ERROR [2018-12-10 09:53:54] [user]  Error occurred while deleting cookies from web browser!
b'Message: invalid session id\n  (Driver info: chromedriver=2.44.609551 (5d576e9a44fe4c5b6a07e568f1ebc753f1214634),platform=Linux 4.15.0-42-generic x86_64)\n'
Traceback (most recent call last):
  File "/root/InstaPy/instapy/util.py", line 1410, in smart_run
    yield
  File "./my_config.py", line 43, in <module>
    session.follow_user_followers(['xxxx','xxxx','xxxx','xxxx'], amount=100, randomize=True, interact=True)
  File "/root/InstaPy/instapy/instapy.py", line 2907, in follow_user_followers
    self.logfolder)
  File "/root/InstaPy/instapy/unfollow_util.py", line 883, in get_given_user_followers
    channel, jumps, logger, logfolder)
  File "/root/InstaPy/instapy/unfollow_util.py", line 722, in get_users_through_dialog
    person_list = dialog_username_extractor(buttons)
  File "/root/InstaPy/instapy/unfollow_util.py", line 747, in dialog_username_extractor
    person_list.append(person.find_element_by_xpath("../../../*")
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webelement.py", line 351, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webelement.py", line 659, in find_element
    {"using": by, "value": value})['value']
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webelement.py", line 633, in _execute
    return self._parent.execute(command, params)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: unknown error: session deleted because of page crash
from unknown error: cannot determine loading status
from tab crashed
  (Session info: headless chrome=70.0.3538.110)
  (Driver info: chromedriver=2.44.609551 (5d576e9a44fe4c5b6a07e568f1ebc753f1214634),platform=Linux 4.15.0-42-generic x86_64)

During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
  File "/root/InstaPy/instapy/instapy.py", line 3845, in end
    self.browser.delete_all_cookies()
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 878, in delete_all_cookies
    self.execute(Command.DELETE_ALL_COOKIES)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/webdriver.py", line 321, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/remote/errorhandler.py", line 242, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: chrome not reachable
  (Session info: headless chrome=71.0.3578.80)
  (Driver info: chromedriver=2.44.609551 (5d576e9a44fe4c5b6a07e568f1ebc753f1214634),platform=Linux 4.15.0-42-generic x86_64)

知道原因是什么以及如何解决吗？

感谢您的投入。还有来自的家伙们http://treestones.ch/ http://treestones.ch/帮助我。

尽管您看到错误为：

Error occurred while deleting cookies from web browser!
b'Message: invalid session id\n  (Driver info: chromedriver=2.44.609551 (5d576e9a44fe4c5b6a07e568f1ebc753f1214634),platform=Linux 4.15.0-42-generic x86_64)\n'

主要的例外是：

selenium.common.exceptions.WebDriverException: Message: unknown error: session deleted because of page crash
from unknown error: cannot determine loading status
from tab crashed

您的代码试验会给我们一些出错的线索。

Solution

这个问题有多种解决方案。然而根据未知错误：由于选项卡崩溃导致页面崩溃，会话被删除 https://github.com/elgalu/docker-selenium/issues/20此问题可以通过以下任一解决方案来解决：

• 添加以下内容chrome_options:

  chrome_options.add_argument('--no-sandbox')         
  

• 由于太小，Chrome 似乎在某些页面上的 Docker 容器中崩溃/dev/shm。所以你可能需要修复一些小问题/dev/shm size.

• 一个例子：

  sudo mount -t tmpfs -o rw,nosuid,nodev,noexec,relatime,size=512M tmpfs /dev/shm
  

• 如果您使用它也有效-v /dev/shm:/dev/shm分享选项host /dev/shm

• 使其工作的另一种方法是添加chrome_options as --disable-dev-shm-usage。这将强制 Chrome 使用/tmp目录代替。但这可能会减慢执行速度，因为将使用磁盘而不是内存。

  chrome_options.add_argument('--disable-dev-shm-usage')        
  

从选项卡崩溃

从选项卡崩溃是 WIP（工作正在进行中）与铬团队相当长一段时间以来，这涉及到Linux 尝试始终使用 /dev/shm 作为不可执行内存。以下是参考资料：

• Linux：Chrome/Chromium SIGBUS/哇，啪！在小 /dev/shm 上 https://bugs.chromium.org/p/chromium/issues/detail?id=522853
• 当 /dev/shm 太小时，Chrome 崩溃/加载失败，并且位置无法覆盖 https://bugs.chromium.org/p/chromium/issues/detail?id=715363
• As per 评论61#问题736452 https://bugs.chromium.org/p/chromium/issues/detail?id=736452#c61修复似乎已经完成Chrome v65.0.3299.6

参考

您可以在以下位置找到一些相关讨论：

• org.openqa.selenium.SessionNotCreatedException：从 Jenkins CI 服务器执行时，选项卡崩溃错误导致会话未创建异常 https://stackoverflow.com/questions/49518157/org-openqa-selenium-sessionnotcreatedexception-session-not-created-exception-fr/49518339#49518339