[Bug] [authz] Default policy not defined

[developster]

Code of Conduct

• I agree to follow this project's Code of Conduct

Search before asking

• I have searched in the issues and found no similar issues.

Describe the bug

When Apache Ranger cannot be reached and the policy cache is empty no policy is enforced and everything is permitted.

Affects Version(s)

v1.10.1

Kyuubi Server Log Output

Kyuubi Engine Log Output

Kyuubi Server Configurations

Kyuubi Engine Configurations

Additional context

No response

Are you willing to submit PR?

• Yes. I would be willing to submit a PR with guidance from the Kyuubi community to fix.
• No. I cannot submit a PR at this time.

[github-actions]

Hello @developster,
Thanks for finding the time to report the issue!
We really appreciate the community's efforts to improve Apache Kyuubi.