When /var is a separate filesystem, nfs-server.service fails if export is iscsi based

Issue

• When /var is a separate filesystem, nfs-server.service fails if export is iscsi based
• Logs shown below:

Sep 28 14:16:50 localhost.localdomain systemd[947]: Executing: /usr/sbin/exportfs -r
Sep 28 14:16:50 localhost.localdomain exportfs[947]: exportfs: Failed to stat /mountpoint/data: No such file or directory
Sep 28 14:16:50 localhost.localdomain systemd[1]: Received SIGCHLD from PID 947 (exportfs).
Sep 28 14:16:50 localhost.localdomain systemd[1]: Child 947 (exportfs) died (code=exited, status=1/FAILURE)
Sep 28 14:16:50 localhost.localdomain systemd[1]: Child 947 belongs to nfs-server.service
Sep 28 14:16:50 localhost.localdomain systemd[1]: nfs-server.service: control process exited, code=exited status=1
Sep 28 14:16:50 localhost.localdomain systemd[1]: nfs-server.service got final SIGCHLD for state start-pre
Sep 28 14:16:50 localhost.localdomain systemd[1]: nfs-server.service changed start-pre -> failed
Sep 28 14:16:50 localhost.localdomain systemd[1]: Job nfs-server.service/start finished, result=failed
Sep 28 14:16:50 localhost.localdomain systemd[1]: Failed to start NFS server and services.
Sep 28 14:16:50 localhost.localdomain systemd-logind[653]: Got message type=signal sender=:1.0 destination=n/a object=/org/freedesktop/systemd1 interface=org.freedesktop.systemd1.Manager member=JobRemoved cookie
Sep 28 14:16:50 localhost.localdomain systemd[1]: Sent message type=signal sender=n/a destination=n/a object=/org/freedesktop/systemd1 interface=org.freedesktop.systemd1.Manager member=JobRemoved cookie=176 repl
Sep 28 14:16:50 localhost.localdomain systemd[1]: Trying to enqueue job nfs-mountd.service/stop/replace
Sep 28 14:16:50 localhost.localdomain systemd[1]: Installed new job nfs-mountd.service/stop as 806
Sep 28 14:16:50 localhost.localdomain systemd[1]: Enqueued job nfs-mountd.service/stop as 806
Sep 28 14:16:50 localhost.localdomain systemd[1]: Trying to enqueue job nfs-idmapd.service/stop/replace
Sep 28 14:16:50 localhost.localdomain systemd[1]: Installed new job nfs-idmapd.service/stop as 810
Sep 28 14:16:50 localhost.localdomain systemd[1]: Enqueued job nfs-idmapd.service/stop as 810
Sep 28 14:16:50 localhost.localdomain systemd[1]: Unit nfs-server.service entered failed state.
Sep 28 14:16:50 localhost.localdomain systemd[1]: nfs-server.service failed.
Sep 28 14:16:50 localhost.localdomain systemd[1]: nfs-server.service: cgroup is empty