How to Fix: Linux: how to automatically restart service if there is error in log?

The error message you're seeing, such as '[info] asio async_shutdown error: asio.system:32 (Broken pipe)', can be frustrating because it indicates that there's an issue with your service, but it might not always cause the service to stop or restart. This is often due to a misinterpretation of the log output by system tools like `systemctl`. The problem arises when tools like `systemctl` only see the initial error message and not subsequent retries or fixes.

To address this issue, you'll need to monitor your service logs for any mention of 'error' and manually restart the service if necessary. This might seem tedious but can help ensure that critical services continue running smoothly.

💡 Why You Are Getting This Error

• The primary reason why `systemctl` doesn't automatically detect an error in the log is because it relies on a specific format for error messages. The `[info]` prefix followed by 'error' might be misinterpreted as a normal informational message rather than something that indicates a problem. This is because system logs often use standardized formats that can sometimes lead to confusion when interpreting error messages.
• Another reason could be the lack of configuration in `systemctl` to automatically restart services on error. While some users have managed to configure this behavior, it's not enabled by default and requires additional setup.

🔧 Proven Troubleshooting Steps

💡 Conclusion

In summary, while `systemctl` might not always detect errors correctly due to its reliance on standardized log formats and default configuration settings, there are steps you can take to manually monitor your service logs for errors and restart services as needed. Alternatively, by configuring systemd to automatically restart services on error, you can eliminate the need for manual intervention.