On 11 May 2010, at 3:00 pm, Tony Travis wrote:
On 11/05/10 14:46, Joe Landman wrote:
Prentice Bisbal wrote:
That's the 3rd or 4th vote for pdsh. I guess I better take a good look
at at.
Allow me to 5th pdsh. We don't install clusters without it.
Hello, Joe and Prentice.
We use Dancer's shell "dsh":
http://www.netfort.gr.jp/~dancer/software/dsh.html.en
Second that recommendation - we use that one too. It's pre-packaged for
Debian family distros, dunno about RPM flavour distros.
We also use clusterssh for more interactive tasks, a tiny Tk application
which launches multiple xterms and sends keystrokes to them (or selected
subsets of them) synchronously. You can still type into the individual
xterms as well, when required. Fabulously useful when the admin task is
interactive (such as running something like yast2 or aptitude). Gets
pretty unwieldy for more than about 20 servers - depends on how much
screen real-estate you have and how small a font your eyes can cope with!
For interactive tasks I use Omnitty (http://omnitty.sourceforge.net/),
which doesn't require the screen real-estate of clusterssh and can work
with any number of machines. I guess clusterssh would be preferable if you
needed to inspect the output of a command in a number of machines
simultaneously, but other than that I find that omnitty is a better option
(also, it runs in text mode in a terminal, which is very convenient for
working through ssh).
Cheers,
Ángel de Vicente
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| High Performance Computing Support PostDoc |
| Instituto de Astrofísica de Canarias |
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