Current File : //usr/lib/systemd/system/systemd-journal-flush.service

#  SPDX-License-Identifier: LGPL-2.1+
#
#  This file is part of systemd.
#
#  systemd is free software; you can redistribute it and/or modify it
#  under the terms of the GNU Lesser General Public License as published by
#  the Free Software Foundation; either version 2.1 of the License, or
#  (at your option) any later version.

[Unit]
Description=Flush Journal to Persistent Storage
Documentation=man:systemd-journald.service(8) man:journald.conf(5)
DefaultDependencies=no
Requires=systemd-journald.service
After=systemd-journald.service
After=systemd-remount-fs.service
Before=systemd-user-sessions.service systemd-tmpfiles-setup.service
RequiresMountsFor=/var/log/journal

[Service]
ExecStart=/usr/bin/journalctl --flush
ExecStop=/usr/bin/journalctl --smart-relinquish-var
Type=oneshot
RemainAfterExit=yes
TimeoutSec=90s