Re: [Rd] [linux] connection never times out

From: Simon Urbanek <simon.urbanek_at_r-project.org>
Date: Tue, 12 Jul 2011 17:44:27 -0400

Never mind, I found the issue - contrary to the documentation Linux does modify tv in the call to select() so our measure of elapsed time doesn't increase. Work-around now present in R-devel.

Cheers,
Simon

On Jul 12, 2011, at 5:23 PM, Simon Urbanek wrote:

> 
> On Jul 12, 2011, at 4:22 PM, Jeroen Ooms wrote:
> 
>>> Can you please verify the behaviour is still the same in a recent R-devel or
>>> at least R-2.13.1? And that there was no other already answered request on
>>> R-help or R-devel re. timeouts?

>>
>> The code below is R 2.13.1. It shows that the timeout time is more
>> than 3 minutes, although it was set to 5 seconds.
>>
> 
> Please set
> options(internet.info=0)
> and re-run your test.
> Are you running this from a command-line R or do you have any graphics or GUIs running? (I'm asking because any fast handler activity will cancel timeouts)
> 
> Thanks,
> Simon
> 
> 
>>> options(timeout=5)
>>> system.time(download.file("http://123.123.123.123", dest=tempfile()))

>> trying URL 'http://123.123.123.123'
>> Error in download.file("http://123.123.123.123", dest = tempfile()) :
>> cannot open URL 'http://123.123.123.123'
>> In addition: Warning message:
>> In download.file("http://123.123.123.123", dest = tempfile()) :
>> unable to connect to '123.123.123.123' on port 80.
>> Timing stopped at: 0 0 189.375
>>> sessionInfo()

>> R version 2.13.1 (2011-07-08)
>> 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
>>> 

>>
>> ______________________________________________
>> R-devel_at_r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>>
>>

>

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https://stat.ethz.ch/mailman/listinfo/r-devel Received on Tue 12 Jul 2011 - 21:47:23 GMT

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