[R-pkg-devel] "Connections left open" Error
Alan Aw
@|@n@w1 @end|ng |rom berke|ey@edu
Mon Aug 23 18:07:14 CEST 2021
Hi,
I submitted a package to CRAN, but it keeps failing a particular check for
Windows. This error shows up when I check my code examples.
Error: connections left open:
> <-CRANwin.fb05.statistik.uni-dortmund.de:11602
> <http://cranwin.fb05.statistik.uni-dortmund.de:11602/> (sockconn)
> <-CRANwin.fb05.statistik.uni-dortmund.de:11602
> <http://cranwin.fb05.statistik.uni-dortmund.de:11602/> (sockconn)
> Execution halted
For context, my code example does the following.
suppressWarnings(require(doParallel))
> registerDoParallel(cores = 2)
>
# Some code examples that use foreach and %dopar%
stopImplicitCluster()
Other contextual information:
- I already import doParallel in the DESCRIPTION file.
- My package passes all checks on the Linux machine.
I have read elsewhere (e.g., this thread
<https://github.com/HenrikBengtsson/future/issues/327>) that examples with
parallelization lead to this error. However stopImplicitCluster() does not
seem to fix it.
Could someone familiar with this please troubleshoot? Thank you.
Alan
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