[Rd] [linux] connection never times out

Uwe Ligges ligges at statistik.tu-dortmund.de
Tue Jul 12 18:45:25 CEST 2011


?connections tells us:

"Note that this is a timeout for no response, not for the whole operation."

And indeed, it will take roughly 20 seconds rather than 60 - at least on 
the Linux machine I tried it on with R-2.13.1.

Best,
Uwe Ligges




On 12.07.2011 14:24, jeroen00ms wrote:
> According to the download.file manual the timeout of a connection can be set
> using options(timeout=10). This seems to work as expected on windows, but on
> linux the connection does not timeout. I reproduced the problem both 0on
> R-2.13 on Ubuntu and on R-2.12.1 on CentOS, but not in Windows.
>
>> options(timeout=5)
>> download.file("http://123.123.123.123/bla", dest=tempfile())
>
> I am running Ubuntu 11.04 with the R binaries from CRAN:
>
>> sessionInfo()
> R version 2.13.0 (2011-04-13)
> Platform: i686-pc-linux-gnu (32-bit)
>
> locale:
>   [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
>   [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
>   [5] LC_MONETARY=C              LC_MESSAGES=en_US.UTF-8
>   [7] LC_PAPER=en_US.UTF-8       LC_NAME=C
>   [9] LC_ADDRESS=C               LC_TELEPHONE=C
> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>
> --
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>
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