Need to understand the impact of systemctl daemon-reexec

Dear all,

We are running RHEL 7.4 version on a machine(kernel version 3.10.0-693), we need to understand the impact of running "systemctl daemon-reexec" command on this system. I read from the systemd man page that "While the daemon is being reexecuted, all sockets systemd listening on behalf of user configuration will stay accessible". Could you please help on this to understand whether any impact on the running application on the server during the systemctl daemon-reexec" command run.