GlusterFS 6 : GlusterFS + NFS-Ganesha2019/05/30

	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. For example, Configure NFS Export setting to a Gluster Volume [vol_distributed] like an example of the link.
[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 stop nfs-server

[root@node01 ~]#

systemctl disable nfs-server

[2]	Install and Configure NFS-Ganesha on a Node in GlusterFS Cluster.

[root@node01 ~]#

yum --enablerepo=centos-gluster6 -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 start nfs-ganesha

[root@node01 ~]#

systemctl enable nfs-ganesha

# verify mount

[root@node01 ~]#

showmount -e localhost

Export list for localhost:
/vfs_distributed (everyone)

[3]	If SELinux is enabled, change policy.

[root@node01 ~]#

setsebool -P nis_enabled on

[4]	If Firewalld is running, allow NFS service.

[root@node01 ~]#

firewall-cmd --add-service=nfs --permanent

success
[root@node01 ~]#

firewall-cmd --reload

success

[5]	Verify NFS mounting on a Client.

[root@client ~]#

yum -y install nfs-utils

# 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
/dev/mapper/centos-root           xfs        26G  1.4G   25G   6% /
devtmpfs                          devtmpfs  3.9G     0  3.9G   0% /dev
tmpfs                             tmpfs     3.9G     0  3.9G   0% /dev/shm
tmpfs                             tmpfs     3.9G  8.5M  3.9G   1% /run
tmpfs                             tmpfs     3.9G     0  3.9G   0% /sys/fs/cgroup
/dev/vda1                         xfs      1014M  250M  765M  25% /boot
tmpfs                             tmpfs     799M     0  799M   0% /run/user/0
node01.srv.world:/vfs_distributed nfs4       52G  3.2G   49G   7% /mnt

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