implementing systemd service timing out during startup on CentOS 8
I keep running into I'm experimenting with I'm relatively new to this, so bear with me. Does anyone know how to I've looked through the documentation and I'm still confused about I'm working with a question where my custom systemd service fails to start on CentOS 8, timing out and leaving me with the behavior message: `Job myservice.service/start timed out.` My service is a simple Python script that connects to a database and serves a REST API using Flask. I've set the configuration in `/etc/systemd/system/myservice.service` like this: ```ini [Unit] Description=My Custom Service After=network.target [Service] User=www-data Group=www-data WorkingDirectory=/opt/myservice ExecStart=/usr/bin/python3 /opt/myservice/app.py Restart=always TimeoutStartSec=30 [Install] WantedBy=multi-user.target ``` I've verified that the script runs correctly when executed manually, and all the necessary dependencies are installed. To debug this, I've tried increasing `TimeoutStartSec` to 60 seconds, but it still fails. Additionally, I've checked the logs using `journalctl -u myservice.service` and they indicate that the service is starting but not reaching the expected output before the timeout occurs. Here's the relevant log entry: ``` myservice.service: Start request repeated too quickly. myservice.service: Failed with result 'timeout'. ``` I suspect it might be related to how the Flask app is initialized or the database connection timing out. However, when I run the script outside of systemd, the service initializes correctly without any delays. I’ve also tried using `Type=simple` and `Type=oneshot`, but the question continues. What could be causing my systemd service to timeout, and how can I resolve this scenario? This is part of a larger web app I'm building. I'm on Debian using the latest version of Python. My team is using Python for this service. Am I approaching this the right way? This issue appeared after updating to Python 3.11. Thanks for taking the time to read this! This is for a mobile app running on Ubuntu 20.04.