cinder-clear-rabbit-queues: 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 Debian possible default full paths are:

/usr/bin/cinder-clear-rabbit-queues - from package: cinder-volume

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

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