On Tue, Oct 29, 2013 at 12:35 PM, Steve Lianoglou <[email protected]> wrote: > 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)?
It happens when a forked child process tries to use some "fork unsafe" opratation, after the parent has already done so as well, see [1]. It is related to R.app in the sense that the GUI uses the CF event loop which is considered fork unsafe, and therefore a forked child process can't do any fork unsafe operations anymore. However it also happens in other contexts such as prefork in RApache [2]. But my actual question is: what is it about using httr::GET that is considered fork "unsafe", which was not considered unsafe in 10.8? [1] http://objectivistc.tumblr.com/post/16187948939/you-must-exec-a-core-foundation-fork-safety-tale [2] http://stackoverflow.com/questions/2344368/problem-configuring-rapache-on-os-x-10-5-8/2358834#2358834 _______________________________________________ R-SIG-Mac mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-mac
