[R-SIG-Mac] Forking issues in Mavericks

[Steve Lianoglou]

Hi,

On Tue, Oct 29, 2013 at 12:08 PM, Jeroen Ooms <jeroen.ooms at stat.ucla.edu> wrote:
> The following works in Linux and OSX 10.8 but in OSX 10.9 it results
> in a "__THE_PROCESS_HAS_FORKED_AND_YOU_CANNOT_USE_THIS_COREFOUNDATION_FUNCTIONALITY___YOU_MUST_EXEC__()":
>
> library(parallel)
> library(httr)
> myfork <- mcparallel(GET("https://api.github.com/users/hadley/repos"))
> out <- mccollect(myfork)
>
> I've seen this error before when trying to access X11 from inside a
> forked process. In this case it seems to be related to SSL, but I'm
> not quite sure how to further debug this in 10.9 (lldb anyone?). What
> exactly might be triggering this error?

Is this happening when you are running R from w/in R.app (which, I
think, is not new), or are you running R from the terminal and still
seeing this)?

-steve

-- 
Steve Lianoglou
Computational Biologist
Bioinformatics and Computational Biology
Genentech