[ESS] Resume R process after Emacs/ESS crash

[William Knebel]

I am probably missing the point here but we typically use screen on
the unix server then start emacs+ESS.  This allows you to reconnect to
the running emacs+ESS process if the X-window client crashes.
However, if the emacs+ESS process itself crashes, I am not sure if
there is a way to get the R process "back" in emacs+ESS.

Bill


On Thu, Oct 02, 2008 at 10:58:43AM -0700, Thomas Lumley wrote:
> On Wed, 1 Oct 2008, Rodney Sparapani wrote:
>> schimpanski at gmx.de wrote:
>>> Hallo, out there!
>>>
>>> I am running GNU Emacs/ESS on a remote Unix Server using an X Window 
>>> client on my local Mac OS X system. After the X-Window containing Emacs 
>>> crashed there's still a R process running doing some heavy computing.
>>>
>>> How can I resume this R process and catch the results?
>>> Can I start Emacs/ESS again and reconnect to this R process?
>>>
>> I've experimented with this.  Just make up a dummy job that takes a long
>> time.  Then send it various signals to see what happens.  I think the
>> two that you are interested in are STOP and CONT, but YMMV.  Most likely
>> this would be in a terminal though.  Not sure how you could get it back
>> to iESS.
>
> I don't know how you can get it back to iESS.  You can send it SIGUSR1 to 
> quit and save its workspace, as long as it is listening to interrupts.
>
> 	-thomas
>
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