Ubuntu 22.04 - Systemd Service scenarios to Start with 'how to allocate memory' scenarios on High Load
I've looked through the documentation and I'm still confused about I'm running a custom systemd service on Ubuntu 22.04 that spawns multiple worker processes to handle incoming requests. However, when the system is under heavy load, the service fails to start with the behavior message `want to allocate memory`. Here are the key points I've observed: - My service configuration file (`/etc/systemd/system/myservice.service`) looks like this: ```ini [Unit] Description=My Custom Service [Service] ExecStart=/usr/bin/my-executable Restart=on-failure User=myuser Group=mygroup LimitNOFILE=65536 LimitNPROC=100 [Install] WantedBy=multi-user.target ``` - I've tried increasing `LimitNPROC` and `LimitAS` settings, but it doesn't seem to help. The system has plenty of available memory, but the allocation fails only under load. - Running `systemctl status myservice` returns `Failed to start myservice.service: Unit myservice.service failed with result 'resource-limit'`. - I’ve checked the logs using `journalctl -u myservice`, and I see the same `want to allocate memory` message repeatedly. I suspect this might be related to systemd's resource limits or the way I am managing processes, but I’m not sure how to debug or resolve this. Has anyone encountered similar issues, or can anyone suggest best practices for configuring systemd services to handle load more gracefully? For context: I'm using Bash on Ubuntu.