一则systemctl service诡异问题

安装完glibc2.8后，程序可以正常运行了，但发现作为服务service一直报以下错误

Jun 04 15:46:31 novalocal systemd[1]: Started xxx Service.
Jun 04 15:46:31 novalocal systemd[1]: xxx.service: main process exited, code=exited, status=127/n/a
Jun 04 15:46:31 novalocal systemd[1]: Unit xxx.service entered failed state.
Jun 04 15:46:31 novalocal systemd[1]: xxx.service failed.
Jun 04 15:46:37 novalocal systemd[1]: xxx.service holdoff time over, scheduling restart.
Jun 04 15:46:37 novalocal systemd[1]: Stopped xxxService.
Jun 04 15:46:37 novalocal systemd[1]: Started xxxService.
Jun 04 15:46:37 novalocal systemd[1]: xxx.service: main process exited, code=exited, status=127/n/a
Jun 04 15:46:37 novalocal systemd[1]: Unit xxx.service entered failed state.
Jun 04 15:46:37 novalocal systemd[1]: xxx.service failed.

各种怀疑，各种重新编辑.service文件，各种重载重新运行都无效

sudo systemctl daemon-reload
sudo systemctl restart your-service.service

于是。。。只能怀疑系统错乱有问题，系统是CentOS7.9，直接重启系统

reboot

噢，重启后，居然正常了。。。无语