[IPython-User] notebooks and clusters

Min RK benjaminrk@gmail....
Mon Jul 23 19:09:12 CDT 2012


Command-line options to the notebook server have exactly zero effect on the cluster config. You *must* use the config files to configure the cluster.

-MinRK

On Jul 23, 2012, at 16:29, Darren Govoni <darren@ontrenet.com> wrote:

> Hi,
>   I am trying to connect a remote engine to a running notebook using the default config. I copied the file.
> It contains.
> {
>   "url": "tcp://127.0.0.1:57726", 
>   "exec_key": "6dac7baf-45c3-4ab2-b642-bfa65fdac0e9", 
>   "ssh": "", 
>   "location": "10.32.6.3"
> }
> 
> 
> The problem is that the url property is not using the --ip= address I invoke the notebook with and
> the remote engine says its timing out trying to register. Any clues?
> 
> thanks.
> 
> On Mon, 2012-07-23 at 13:52 -0700, MinRK wrote:
>> 
>> On Mon, Jul 23, 2012 at 1:38 PM, Darren Govoni <darren@ontrenet.com> wrote:
>> > Ok, thanks.
>> >
>> > What I want to do is run remote engines manually and have them connect to
>> > the notebooks controller.
>> >
>> > I assume the notebook as a config file it creates that I can use on remote
>> > servers for engines to connect?
>> 
>> There is no notebook-specific config to the clusters.  Clicking the
>> `start` button for profile 'foo' should be identical to doing
>> `ipcluster start --profile foo`.  All of the parallel
>> connection/configuration docs still apply.  That means that the
>> controller creates `ipcontroller-{client|engine}.json` files in
>> profile/security, and you can start engines with `ipengine
>> --profile=foo` or `ipcluster engines --profile=foo` to connect to it.
>> If your machines are not on a shared filesystem, you will need to pass
>> the connection files around as described in the docs.
>> 
>> 
>> 
>> >
>> > Or does it just use the default config location (e.g. user directory)?
>> >
>> >
>> > On Mon, 2012-07-23 at 13:37 -0700, MinRK wrote:
>> >
>> > On Mon, Jul 23, 2012 at 1:25 PM, Darren Govoni <darren@ontrenet.com> wrote:
>> >> Hi,
>> >>   Can the notebook cluster connect with remote engines or vice-versa?
>> >
>> > Yes - the notebook cluster panel is just a very thin wrapper for
>> > ipcluster.  So if you create a profile that starts engines via
>> > PBS/SGE/SSH, etc. that will happen when you start a cluster from the
>> > panel.  Similarly, you can start a cluster from the panel and add
>> > engines to it with `ipengine` and/or `ipcluster engines` in all the
>> > usual ways.  There is nothing special about clusters started from the
>> > notebook panel, other than that they can also be stopped from there.
>> >
>> > The one thing you cannot do yet is actually edit the config files for
>> > those profiles from the notebook interface - for that, you need access
>> > to the filesystem, or you can do a dirty version by writing the the
>> > config files with the `%%file` magic in a notebook.
>> >
>> > -MinRK
>> >
>> >>
>> >> thanks.
>> >>
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