BUG

[darshan200]

Environment: Docker Compose on AWS EC2

Issue: When scheduling a report in Superset:
Selecting the chart option successfully generates a report.
Selecting the dashboard option fails, and the report is not generated.

Error:
Report Schedule execution failed when generating a screenshot.
Notification sent with error.

[dosubot[bot]]

I found some similar discussions regarding issues with report generation in Superset:

1. Bug Report: Report Generation Issue with Dashboard Option - This discussion is open and was last updated on December 26, 2024 ^[1].

2. Bug Report: Report Generation Issue with Dashboard Option - This discussion is also open and was last updated on December 26, 2024 ^[2].

3. Alerts & Reporting - Selenium timed out / DNS Resolution - This discussion is open and was last updated on December 16, 2024 ^[3].

Common causes of failure when generating screenshots for dashboards in Superset include Selenium timeout errors. You can try increasing the timeout values in the superset_config.py file:

# Increase screenshot timeouts
SCREENSHOT_LOCATE_WAIT = 100
SCREENSHOT_LOAD_WAIT = 600

Additionally, configuring the Chrome WebDriver with appropriate options can help prevent failures:

# Configure Chrome WebDriver options
WEBDRIVER_OPTION_ARGS = [
    "--force-device-scale-factor=2.0",
    "--high-dpi-support=2.0",
    "--headless",
    "--disable-gpu",
    "--disable-dev-shm-usage",
    "--no-sandbox",
    "--disable-setuid-sandbox",
    "--disable-extensions",
]

WEBDRIVER_CONFIGURATION = {"service_log_path": "/dev/null"}

These configurations help ensure that the WebDriver operates in a headless mode with sufficient resources and time to generate the screenshots successfully ^[4].

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