How to Glusterfs in Centos 7

 

1. Setup glusterfs on server

The setup need to be setup in every each server

Install the repo:

yum -y install epel-release
yum -y install yum-priorities
yum -y install centos-release-gluster

Install the Glusterfs:

yum -y install glusterfs-server gluster*

Start Glusterfs:

systemctl enable glusterd.service
systemctl start glusterd.service

Do this setup in Node1

~Note : Node1 = adi.ot       Node2 = davi.ot       (These are hostname)

gluster peer probe davi.ot

Check if node1 and node2 are connected:

gluster peer status

Output node1:

Number of Peers: 1

Hostname: adi.ot
Uuid: bcdd0750-f850-4c16-95b5-5873b4e18666
State: Peer in Cluster (Connected)

Output node2:

Number of Peers: 1

Hostname: davi.ot
Uuid: bqqd0150-d750-4c16-15c5-5873r4e18111
State: Peer in Cluster (Connected)

If you wanted to create shared volume replicated:

gluster volume create nostra replica 2 transport tcp adi.ot:/mnt/data davi.ot:/mnt/data force

If you wanted to create shared volume Distributed:

gluster volume create nostra adi.ot:/mnt/data davi.ot:/mnt/data force

Start the volume that we have been created:

gluster volume start nostra

Check if we have been connected:

gluster volume info

Output:

Volume Name: nostra
Type: Replicate
Volume ID: 0d0fd355-3531-40f4-999d-0b2e1f3976a1
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: adi.ot:/mnt/data
Brick2: davi.ot:/mnt/data
Options Reconfigured:
transport.address-family: inet

2. Setup glusterfs on Client

Install glusterfs for client:

yum -y install glusterfs-client glusterfs glusterfs-fuse attr

Create mount folder:

mkdir /opt/data

Mount the folder:

mount glusterfs adi.ot:nostra /opt/data

Check if it's already connected:

df -h

Output:

Filesystem Size Used Avail Use% Mounted on
/dev/sda2 31G 1,6G 28G 6% /
devtmpfs 911M 0 911M 0% /dev
tmpfs 920M 0 920M 0% /dev/shm
tmpfs 920M 8,4M 912M 1% /run
tmpfs 920M 0 920M 0% /sys/fs/cgroup
/dev/sda1 976M 266M 644M 30% /boot
tmpfs 184M 0 184M 0% /run/user/0
adi.ot:nostra 31G 1,8G 28G 6% /opt/data

Check if the mounting is succed:

touch /opt/data/testingFile.txt

~Automatic Mounting

Open fstab file:

nano /etc/fstab

Use this code so that your Glusterfs mounting automatically when machine is rebooted:

adi.ot:nostra   /opt/data  glusterfs   defaults,_netdev  0  0

3. See the file that created by client in server

Try this command on node1 and node2:

ll /mnt/data

Output:

testingFile.txt