2055010 - Airflow task `web_scraping.read_release_data` failed for run `scheduled__2026-07-07T15:00:00+00:00`

Status: RESOLVED FIXED

(Data Platform and Tools :: General, defect)

Description

[Ben Wu [:benwu]]

Airflow task web_scraping.read_release_data failed for run scheduled__2026-07-07T15:00:00+00:00.

Task link:
https://workflow.telemetry.mozilla.org/dags/web_scraping/grid?dag_run_id=scheduled__2026-07-07T15%3A00%3A00%2B00%3A00&task_id=read_release_data

Log extract:

  File "/app/release_scraping/main.py", line 286, in main
    driver = initialize_driver(DRIVER_TYP, BINARY_LOC, DRIVER_PATH)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/release_scraping/main.py", line 86, in initialize_driver
    driver = ChromiumDriver(service=Service(driver_path), options=options)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chrome/webdriver.py", line 45, in __init__
    super().__init__(
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/chromium/webdriver.py", line 66, in __init__
    super().__init__(command_executor=executor, options=self.options)
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/common/webdriver.py", line 25, in __init__
    super().__init__(*args, **kwargs)
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 300, in __init__
    self.start_session(capabilities)
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 396, in start_session
    response = self.execute(Command.NEW_SESSION, caps)["value"]
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/webdriver.py", line 492, in execute
    self.error_handler.check_response(response)
  File "/usr/local/lib/python3.11/site-packages/selenium/webdriver/remote/errorhandler.py", line 232, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.SessionNotCreatedException: Message: session not created: Chrome instance exited. Examine ChromeDriver verbose log to determine the cause.; For documentation on this error, please visit: https://www.selenium.dev/documentation/webdriver/troubleshooting/errors#sessionnotcreatedexception

Comment 1

[Sean Rose [:srose]]

This is still failing: https://workflow.telemetry.mozilla.org/dags/web_scraping/grid?tab=logs&dag_run_id=scheduled__2026-07-14T15%3A00%3A00%2B00%3A00&task_id=read_release_data

Comment 2

[Liam McFall [:liam]]

fixed, currently running this weeks run successfully.