[IPython-User] Can't get ipcluster to run on LAN

Johann Rohwer jr@sun.ac...
Wed Aug 8 09:01:19 CDT 2012

On Wednesday 08 August 2012 09:46:46 Cavendish McKay wrote:
>>> snip <<<
> So, summing up:
> 1. There is a note in ipcluster_config.py that both
> SSHEngineLauncher and SSHControllerLauncher inherit config from
> SSHClusterLauncher and SSHLauncher.
> 2. SSHClusterLauncher adds ['--profile-dir',
> self.remote_profile_dir] to the arguments.
> 3. It seems that if profile_dir isn't specified in
> ipcluster_config.py, it doesn't get generated properly (hence the
> error message upon starting ipcontroller, above), and
> 4. The way the command is being put together, these args don't seem
> to be getting to ipengine via ssh (hence the error message related
> to starting ipengine, above). This error message is coming from
> bash, rather than from ipengine, and it looks to me like
> SSHEngineLauncher isn't actually using the ipengine script, so
> maybe the command line arguments aren't appropriate here anyway.
> I'm not (yet) well enough versed in the internals to figure out the
> right way to fix this, or even if it's just a configuration error on
> my part.  Also, this may not be the problem you're having, but it
> seemed similar enough that I would chime in.

You beat me to it, see the reply I have just posted to the list, 
indeed I've come to the conclusion that there is a problem with 
--profile_dir and the way remote_profile_dir gets constructed. As you 
say it has to do with the way ipcluster constructs these arguments, 
because if you run ipcontroller and ipengine separately, and put the 
json files in the right place, all's well. But that's a PITA...

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