How to setup GlusterFS Server/Client

Gluster setup Server/client on both nodes

                         On both machines:

  • wget http://www.nicktailor.com/files/redhat6/glusterfs-3.4.0-8.el6.x86_64.rpm
  • wget http://www.nicktailor.com/files/redhat6/glusterfs-fuse-3.4.0-8.el6.x86_64.rpm
  • wget http://www.nicktailor.com/files/redhat6/glusterfs-server-3.4.0-8.el6.x86_64.rpm
  • wget http://www.nicktailor.com/files/redhat6/glusterfs-libs-3.4.0-8.el6.x86_64.rpm
  • wget http://www.nicktailor.com/files/redhat6/glusterfs-cli-3.4.0-8.el6.x86_64.rpm

    Install GlusterFS Server and Client
  • yum localinstall -y gluster*.rpm
  • yum install fuse

We want to use LVM for the glusterfs, so if we need to increase the size of the volume in future we can do so relatively easily. Repeat these steps on both nodes.

Create your physical volume

  • pvcreate /dev/sdb

Create your volume

  • vgcreate vg_gluster /dev/sdb

Create the logical volume

  • lvcreate -l100%VG -n lv_gluster vg_gluster

Format your volume

  • mkfs.ext3 /dev/vg_gluster/lv_gluster

Make the directory for your glusterfs

  • mkdir -p /mnt/lv_gluster

Mount the logical volume to your destination

  • mount /dev/vg_gluster/lv_gluster       /mnt/lv_gluster

Create your brick

  • mkdir -p /mnt/lv_gluster/brick

Add to your fstab if you wish for it to automount upon reboots

  • echo “”  >> /etc/fstab
  • echo “/dev/vg_glusterfs/lv_gluster /mnt/lv_gluster ext3 defaults 0 0”  >> /etc/fstab
  • service glusterd start
  • chkconfig glusterd on

Now from server1.nicktailor.com:

 

Test to ensure you can contact your second node

  • gluster peer probe server2.nicktailor.com

Create glusterfs volume name and replication between both nodes

  • gluster volume create $volumename replica 2 transport tcp
    server1.nicktailor.com:/mnt/lv_gluster/brick server2.nicktailor.com:/mnt/lv_gluster/brick

Start the glusterfs volume

  • gluster volume start $volumename

Now on server1.nicktailor.com:

Now we need to make the glusterfs directory from which everything will write to and replicate from.

NOTE: You will not be able to mount the storage unless your glusterfs volume is started 

  • mkdir /storage
  • mount -t glusterfs server1.nicktailor.com:/sftp /storage 

 

Add to these lines for automounting upon reboots

  • echo “”  >> /etc/fstab
  • echo “glusterfs server1.nicktailor.com:/sftp /storage glusterfs defaults,_netdev 0 0”  >> /etc/fstab
  • echo “”  >> /etc/rc.local
  • echo “grep -v ‘^\s*#’ /etc/fstab | awk ‘{if (\$3 == \”glusterfs\”) print \$2}’ | xargs mount”  >> /etc/rc.local
  • echo “mount -t glusterfs server1.nicktailor.com:/sftp /storage” >> /etc/rc.local

 

Now on server2.nicktailor.com do the following after you install the glusterfs and setup the volume group and start the glusterfs service

  • mkdir /storage
  • mount -t glusterfs server2.nicktailor.com:/sftp /storage
  • echo “”  >> /etc/fstab
  • echo ” server2.nicktailor.com:/sftp /storage glusterfs defaults 0 0″  >> /etc/fstab (if this doesnt automount use the mount -t line at the bottom in /etc/rc.local instead)
  • echo “”  >> /etc/rc.local
  • echo “grep -v ‘^\s*#’ /etc/fstab | awk ‘{if (\$3 == \”glusterfs\”) print \$2}’ | xargs mount”  >> /etc/rc.local
  • echo “mount -t glusterfs server2.nicktailor.com:/sftp /storage” >> /etc/rc.local

CheersNick Tailor

If you have questions email nick@nicktailor.com and I will try to answer as soon as I can.

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