Why does the Livy test connection fail with the error “Not able to access resource, please check the host URL”?

Setup & Configuration Livy
1

Do check in the logs for exceptions and the root cause. The log files can be analysed from Livy url.

Possible causes are:

  • The Livy host url configured in Sparkflows is configured wrongly.

  • The Livy host url configured in Sparkflows is not accessible from EMR Livy.

  • Test connectivity from the sparkflows machine using:

    curl http://:8998/sessions {when Livy without authentications}
    curl -v -u : https://:8998/sessions {when Livy with authentications}

Note: Make sure to replace ‘livy-host’ with your actual Livy Server ip or domain name.