glusterfs: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/sbin/glusterfs - from package: glusterfs-fuse

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/sbin/glusterfs - from package: glusterfs-client

You may install the required package with command apt-get install {package}

Error in other languages:
glusterfs: bevel nie gevind nie
glusterfs: comandă negăsită
glusterfs: comando não encontrado
glusterfs: commande introuvable
glusterfs: command not found
glusterfs: käsku ei ole
glusterfs: không tìm thấy lệnh
glusterfs: komanda nerasta
glusterfs: Kommando nicht gefunden.
glusterfs: kommandot finns inte
glusterfs: komut yok
glusterfs: nie znaleziono polecenia
glusterfs: níor aimsíodh an t-ordú
glusterfs: no se encontró la orden
glusterfs: no s'ha trobat l'ordre
glusterfs: opdracht niet gevonden
glusterfs: parancs nem található
glusterfs: perintah tidak ditemukan
glusterfs: príkaz nenájdený
glusterfs: příkaz nenalezen
glusterfs: команда не найдена
glusterfs: командата не е открита
glusterfs: 命令找不到
glusterfs: コマンドが見つかりません