Usefull tools making your life easier

dsh - the distributed/dancer shell

Introduction

The dancer shell is very usefull to run identical commands on the whole cluster, a simple check good be:

dsh -aMF30 "uptime; sleep 1"

Usage

Please refer to the man page man 1 dsh for information on all options, here are just the most useful ones:

-a

Use the prepared system file /etc/dsh/machines.list

-F

Fork that many parallel jobs, don't go too high, 20-30 should be safe

-M

Prepend the machine name before the stdout of the process on the node

-f

specify your own file with one machine name or IP address per line

-- CarstenAulbert - 18 Jun 2008