Ubuntu 20.04
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GlusterFS : GlusterFS + NFS-Ganesha
2020/08/26
 
Install NFS-Ganesha and integrate with GlusterFS to mount Gluster Volume with NFS protocol.
The supported NFS protocols by NFS-Ganesha are v3, v4.0, v4.1, pNFS.
[1] Disable NFS feature in Gluster first.
The NFS feature in Gluster is officially deprecated.
Also if NFS server is running, stop and disable it, too.
# OK if [nfs.disable: on] (default setting)

root@node01:~#
gluster volume get vol_distributed nfs.disable

Option                                  Value
------                                  -----
nfs.disable                             on

# if [nfs.disable: off], turn to disable

root@node01:~#
gluster volume set vol_distributed nfs.disable on

volume set: success
# if NFS server is running, disable it

root@node01:~#
systemctl disable --now nfs-server

[2] Install and Configure NFS-Ganesha on a Node in GlusterFS Cluster.
root@node01:~#
apt -y install nfs-ganesha-gluster
root@node01:~#
mv /etc/ganesha/ganesha.conf /etc/ganesha/ganesha.conf.org

root@node01:~#
vi /etc/ganesha/ganesha.conf
# create new

NFS_CORE_PARAM {
    # possible to mount with NFSv3 to NFSv4 Pseudo path
    mount_path_pseudo = true;
    # NFS protocol
    Protocols = 3,4;
}
EXPORT_DEFAULTS {
    # default access mode
    Access_Type = RW;
}
EXPORT {
    # uniq ID
    Export_Id = 101;
    # mount path of Gluster Volume
    Path = "/vol_distributed";
    FSAL {
    	# any name
        name = GLUSTER;
        # hostname or IP address of this Node
        hostname="10.0.0.51";
        # Gluster volume name
        volume="vol_distributed";
    }
    # config for root Squash
    Squash="No_root_squash";
    # NFSv4 Pseudo path
    Pseudo="/vfs_distributed";
    # allowed security options
    SecType = "sys";
}
LOG {
    # default log level
    Default_Log_Level = WARN;
}

root@node01:~#
systemctl restart nfs-ganesha

root@node01:~#
systemctl enable nfs-ganesha
# show exports list

root@node01:~#
showmount -e localhost

Export list for localhost:
/vfs_distributed (everyone)
[3] Verify NFS mounting on a Client Host.
root@client:~#
apt -y install nfs-common
# specify Pseudo path set on [Pseudo=***] in ganesha.conf

root@client:~#
mount -t nfs4 node01.srv.world:/vfs_distributed /mnt

root@client:~#
df -hT

Filesystem                        Type      Size  Used Avail Use% Mounted on
udev                              devtmpfs  1.9G     0  1.9G   0% /dev
tmpfs                             tmpfs     394M  1.1M  393M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv ext4       25G  3.0G   21G  13% /
tmpfs                             tmpfs     2.0G     0  2.0G   0% /dev/shm
tmpfs                             tmpfs     5.0M     0  5.0M   0% /run/lock
tmpfs                             tmpfs     2.0G     0  2.0G   0% /sys/fs/cgroup
/dev/vda2                         ext4      976M  197M  713M  22% /boot
/dev/loop0                        squashfs   55M   55M     0 100% /snap/core18/1880
/dev/loop1                        squashfs   55M   55M     0 100% /snap/core18/1754
/dev/loop2                        squashfs   72M   72M     0 100% /snap/lxd/16100
/dev/loop3                        squashfs   72M   72M     0 100% /snap/lxd/15675
/dev/loop4                        squashfs   30M   30M     0 100% /snap/snapd/8542
/dev/loop5                        squashfs   30M   30M     0 100% /snap/snapd/8140
tmpfs                             tmpfs     394M     0  394M   0% /run/user/0
node01.srv.world:/vfs_distributed nfs4       50G  6.5G   42G  14% /mnt
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