Description of problem:
ctdb tries to delete files in /var/lib/nfs/rpc_pipefs/. It dies with error - permission denied and fails to start.

Version-Release number of selected component (if applicable):
ctdb-4.8.3-4.el7.x86_64

How reproducible:
Always (tried on 3 gluster nodes)

Steps to Reproduce:
1.Install storhaug , ctdb & nfs-ganesha
2.Deploy via storhaug (https://github.com/gluster/storhaug/wiki):
- yum -y install storhaug-nfs
- ssh-keygen -f /etc/sysconfig/storhaug.d/secret.pem
- ssh-copy-id -i /etc/sysconfig/storhaug.d/secret.pem.pub root@nodeX
Repeat for all nodes
- populate /etc/ctdb/nodes and /etc/ctdb/public_addresses
- Configure /etc/ctdb/ctdbd.conf:
 grep -Ev "^#|^$" /etc/ctdb/ctdbd.conf
CTDB_RECOVERY_LOCK="/run/gluster/shared_storage/lock"
CTDB_NODES=/etc/ctdb/nodes
CTDB_PUBLIC_ADDRESSES=/etc/ctdb/public_addresses
CTDB_MANAGES_NFS=yes
CTDB_NFS_CALLOUT=/etc/ctdb/nfs-ganesha-callout
CTDB_NFS_STATE_FS_TYPE=glusterfs
CTDB_NFS_STATE_MNT=/run/gluster/shared_storage
CTDB_NFS_SKIP_SHARE_CHECK=yes
NFS_HOSTNAME=localhost
CTDB_DEBUG_LEVEL=DEBUG

-touch /etc/ganesha/ganesha.conf
-gluster volume set all cluster.enable-shared-storage enable
-storhaug setup

3.Start the ctdb.service (if not running)

Actual results:
CTDB defines in the log that it tries to cleanup /var/lib/nfs/rpc_pipefs and fails.

Expected results:
CTDB service file should contain:
[Unit]
Conflicts=var-lib-nfs-rpc_pipefs.mount

Additional info:
If the var-lib-nfs-rpc_pipefs.mount is not running - the ctdb.service starts properly.
My current ctdb service is:
[root@ovirt1 ~s]# systemctl cat ctdb.service
# /etc/systemd/system/ctdb.service
[Unit]
Description=CTDB
Documentation=man:ctdbd(1) man:ctdb(7)
After=network-online.target time-sync.target
Conflicts=var-lib-nfs-rpc_pipefs.mount

[Service]
Type=forking
LimitCORE=infinity
PIDFile=/run/ctdb/ctdbd.pid
ExecStartPre=/bin/bash -c "sleep 2; if [ -f /sys/fs/cgroup/cpu/system.slice/cpu.rt_runtime_us ]; then echo 10000 > /sys/fs/cgroup/cpu/system.slice/cpu.rt_runtime_us; fi"
ExecStart=/usr/sbin/ctdbd_wrapper /run/ctdb/ctdbd.pid start
ExecStop=/usr/sbin/ctdbd_wrapper /run/ctdb/ctdbd.pid stop
KillMode=control-group
Restart=no

[Install]
WantedBy=multi-user.target