Oracle Database Free

Hello,

I'm experiencing an issue with the Oracle Database Free running in a Docker container. Below are the details of my setup and the issue:

Environment:

• Oracle Version: Oracle Database 23 Free
• Docker Version: Docker Engine - Community Version 25.0.4
• Host System: Ubuntu (22.04.4 LTS)
• Method of Installation: Followed the instructions on the official Oracle GitHub repository (https://github.com/oracle/docker-images/blob/main/OracleDatabase/SingleInstance/README.md#building-oracle-database-container-images and https://github.com/oracle/docker-images/blob/main/OracleDatabase/SingleInstance/README.md#running-oracle-database-23c-free-in-a-container).

Issue Description: After starting the Oracle Database in the Docker container, it runs smoothly initially. However, after 2 or 3 days, I consistently encounter an error in the database logs (alert.log). The error message is repeated multiple times as follows:

FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2024-02-09T09:28:10.643240+01:00
FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2024-02-09T09:38:12.759029+01:00
FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2024-02-09T09:48:14.869842+01:00
FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2024-02-09T10:08:19.097372+01:00
FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes
2024-02-09T10:18:21.205065+01:00
FREEPDB1(3):DDE: Problem Key 'ORA 8181' was completely flood controlled (0x6)
Further messages for this problem key will be suppressed for up to 10 minutes

Troubleshooting Steps Taken:

• Checked the Docker container's resource utilization (memory, CPU).
• Verified the Oracle Database configuration settings.
• Searched for the 'ORA 8181' error code in Oracle's documentation and forums, but could not find relevant solutions.

Attachment: I have attached a trace file named 'FREE_mmon_119_1.trc' for further insight into this issue.

I would appreciate any guidance or suggestions on resolving this issue. Is this a known problem with the Oracle Database 23 Free, or could there be a specific configuration issue in my setup?

Thank you for your assistance.

Regards,
Christian

FREE_mmon_119_1.trc.txt