StarCluster - Mailing List Archive

Re: Waiting for JSON connector file...

From: Alessandro Gagliardi <no email>
Date: Wed, 14 Nov 2012 12:07:29 -0800

So it sounds like anything using the StarCluster 11.10 AMIs should be
EBS-backed automatically (so long as I'm not using spot instances, which
I'm not) and so should be able to be started after being stopped (with the
-x) flag.

If that's the case, then it doesn't answer my original question of why,
when I tried starting my cluster after stopping it, it got stuck on Waiting
for JSON connector file.../.

I'd really like to solve this problem as I only need to use these clusters
about 1/4 of the week, but it takes me almost a full day to configure them
the way I want (with installing IPython 0.14 and Pandas and RPy and all
that) so I can't just spin up a new one every time I need it.


On Wed, Nov 14, 2012 at 11:44 AM, Justin Riley <jtriley_at_mit.edu> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Hi Alessandro,
>
> Yes you can only stop an EBS-backed cluster. With that said any
> cluster started with EBS-backed AMIs is stoppable provided it's not a
> spot cluster. The latest StarCluster 11.10 AMIs are EBS-backed so if
> you're using them with on-demand instances you can stop your cluster
> using the 'stop' command and then restart them later on using:
>
> $ starcluster start -x your_stopped_cluster
>
> HTH,
>
> ~Justin
>
> On 11/08/2012 07:37 PM, Alessandro Gagliardi wrote:
> > I think the problem is that I can only start a stopped StarCluster
> > if it's EBS-backed. (At least, that's what it looks like from
> > reading
> >
> http://star.mit.edu/cluster/docs/latest/manual/launch.html#stopping-an-ebs-backed-cluster
> .)
> >
> >
> But how do I make it EBS-backed? (Sadly, searching the documentation for
> > ebs-backed
> > <
> http://star.mit.edu/cluster/docs/latest/search.html?q=ebs-backed&check_keywords=yes&area=default
> >
> >
> >
> yields no results.)
> >
> > Thank you in advance, -Alessandro
> >
> >
> > On Wed, Oct 31, 2012 at 1:51 PM, Alessandro Gagliardi
> > <alessandro_at_path.com <mailto:alessandro_at_path.com>> wrote:
> >
> > Hello folks,
> >
> > I stopped my StarCluster (after successfully using it with IPython
> > 0.14) and when I tried starting it up again the next day, it hangs
> > at this point:
> >
> > !!! ERROR - command 'source /etc/profile && ipcluster start --n=37
> > --delay=5 --daemonize' failed with status 10
> >>>> Waiting for JSON connector file.../
> >
> > Any idea why and what (if anything) I can do about it?
> >
> > Thanks, -Alessandro
> >
> >
> >
> >
> > -- Alessandro Gagliardi alessandro_at_path.com
> > <mailto:alessandro_at_path.com>
> >
> >
> > _______________________________________________ StarCluster mailing
> > list StarCluster_at_mit.edu
> > http://mailman.mit.edu/mailman/listinfo/starcluster
> >
>
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-- 
Alessandro Gagliardi    alessandro_at_path.com
Received on Wed Nov 14 2012 - 15:07:52 EST
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