Hi Henrik,

1. It could be that a virus checker locks the file.
This is some internal document so I don't think so and this was monitor by our IT security team.
2. There are Windows software tools that identify which process locks
a particular file, e.g. LockHunter (http://lockhunter.com/).  Those
should help you figure out what's going on.
ok, thanks.
3. R.utils::downloadFile() tries it's best to download files
atomically, i.e. it either gives you a fully downloaded file or not
all.  In your case, you might still end up with a temporary corrupt
file, but at least it will have a filename that is different than the
one you ask for.
My issue is that if I run over 300'000 documents and I will get the same amount of corrupted files.
I will try some solution with R or try with python

Thanks
Cheers
Fabien

Hi there,

Sometime download.file() failed to download the file and I would like to
remove the correspond file.
The issue is that I am not able to do it and Windows complain that the file
is use by another application.
I try to closeAllConnections(), or unlink() before removing the file but
without sucess.

Any idea how I should proceed &

Please find the code below

  # consider warning as an error
   options(warn=2)

   # try to download the file
   tryCatch({
     download.file(url,path_file,mode="wb",quiet=quiet)
     return(0)
   },error = function(e){
     if(verbose){
       print(e)
       print(e$message)
     }
     # close file when it failed
     if (file.exists(path_file)){
       closeAllConnections()
       #unlink(path_file, recursive=TRUE)
       #file.create(path_file,overwrite=TRUE,showWarning=TRUE)
       #system(paste0('open "', path_file, '"'))
       file.remove(path_file,overwrite=TRUE,showWarning=TRUE)
     }
     return(1)
     }
)

Thanks a lot
Cheers
Fabien

--
Dr Fabien Tarrade

Quantitative Analyst/Developer - Data Scientist

Senior data analyst specialised in the modelling, processing and statistical
treatment of data.
PhD in Physics, 10 years of experience as researcher at the forefront of
international scientific research.
Fascinated by finance and data modelling.

Geneva, Switzerland

Email : cont...@fabien-tarrade.eu <mailto:cont...@fabien-tarrade.eu>
Phone : www.fabien-tarrade.eu <http://www.fabien-tarrade.eu>
Phone : +33 (0)6 14 78 70 90

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______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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--
Dr Fabien Tarrade

Quantitative Analyst/Developer - Data Scientist

Senior data analyst specialised in the modelling, processing and statistical treatment of data. PhD in Physics, 10 years of experience as researcher at the forefront of international scientific research.
Fascinated by finance and data modelling.

Geneva, Switzerland

Email : cont...@fabien-tarrade.eu <mailto:cont...@fabien-tarrade.eu>
Phone : www.fabien-tarrade.eu <http://www.fabien-tarrade.eu>
Phone : +33 (0)6 14 78 70 90

LinkedIn <http://ch.linkedin.com/in/fabientarrade/> Twitter <https://twitter.com/fabtar> Google <https://plus.google.com/+FabienTarradeProfile/posts> Facebook <https://www.facebook.com/fabien.tarrade.eu> Google <skype:fabtarhiggs?call> Xing <https://www.xing.com/profile/Fabien_Tarrade>

______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

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