[IPython-User] starting a cluster with the notebook

Brian Granger ellisonbg@gmail....
Mon Apr 2 18:18:00 CDT 2012


I don't remember how the SSH configuration for clusters works, but I
am wondering if you want to use the regular "local" launcher for the
controller.

On Sat, Mar 31, 2012 at 9:33 AM, Toby Burnett <tburnett@uw.edu> wrote:
> Hi, I only just updated with a new install, and found the neat option from
> the notebook dashboard. I monitor this list and git to understand what is
> happening, eager to start using new features like this and somehow missed
> this very useful extension.
>
>
>
> My question is about using  ssh mode.  I set
>
> c.IPClusterStart.controller_launcher_class = 'SSH'

I don't remember how the SSH configuration for clusters works, but I
am wondering if you want to use the regular "local" launcher for the
controller.

> c.IPClusterStart.engine_launcher_class = 'SSHEngineSetLauncher', and
>
> c.SSHEngineSetLauncher.engines to a dict of the machines I want to setup
>
> in ipcluster_config.py.
>
>
>
> Observations:
>
>
>
> The controller_launcher_class has no comment in the default config file, but
> is described in the online doc.
>
>
>
> Pushing the ‘start’ button sets the # of engines field to 24, which is the
> local default, but I actually started 12 on each of 3 other machines. Could
> this reflect the total number of engines? Setting it before starting has no
> effect.
>
>
>
> Pushing ‘stop’ kills all the ssh and sshd processes, but not the several
> python and an ipcluster process on each of the machines. Is there a way to
> accomplish this with pushing that button? I don’t see a ipcontroller
> process, a puzzle.
>
>
>
> --Toby
>
>
>
>
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>



-- 
Brian E. Granger
Cal Poly State University, San Luis Obispo
bgranger@calpoly.edu and ellisonbg@gmail.com


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