R help - Oct 2010 - Class mode text isopen can read can write - too many open connections

I am downloading data files using RCurl and everything works except till
some limit is hit and says too many connections open 
It is a simple download using URL and I am writing the status in a tryCatch
block to a log file.


showConnections()
     description class mode text isopen can read can
write
> showConnections(all=T)
  description class      mode text   isopen   can read can write
0 "stdin"     "terminal" "r"  "text"
"opened" "yes"    "no"
1 "stdout"    "terminal" "w"  "text"
"opened" "no"     "yes"
2 "stderr"    "terminal" "w"  "text"
"opened" "no"     "yes"

I tried closeAllConnections() but of no use.

When I try to delete a downloaded file . It says cannot be done because
"folder is open in R GUI front end"

Any idea how to resolve this?
> sessionInfo()
R version 2.11.1 (2010-05-31) 
i386-pc-mingw32 

locale:
[1] LC_COLLATE=English_United Kingdom.1252  LC_CTYPE=English_United
Kingdom.1252    LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C
LC_TIME=English_United Kingdom.1252    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] RCurl_1.4-4.1  bitops_1.0-4.1 zoo_1.6-4     

loaded via a namespace (and not attached):
[1] grid_2.11.1     lattice_0.19-11 tools_2.11.1   
>

Hi,

Is it a public URL (i.e., that we can try downloading from too)?  Do
you get the same error now matter where/what you download or just from
that one place?  Finally, if you are using Windows > XP, are you
running R as an administrator (or very sure that the log file or
whatever else you are creating is not being written to some place that
Windows will try to restrict such as in Programs)?

Cheers,

Josh

On Sun, Oct 17, 2010 at 8:57 AM, Santosh Srinivas
<santosh.srinivas at gmail.com> wrote:
> I am downloading data files using RCurl and everything works except till
> some limit is hit and says too many connections open
> It is a simple download using URL and I am writing the status in a tryCatch
> block to a log file.
>
>
> showConnections()
> ? ? description class mode text isopen can read can write
>> showConnections(all=T)
> ?description class ? ? ?mode text ? isopen ? can read can write
> 0 "stdin" ? ? "terminal" "r"
?"text" "opened" "yes" ? ?"no"
> 1 "stdout" ? ?"terminal" "w"
?"text" "opened" "no" ? ? "yes"
> 2 "stderr" ? ?"terminal" "w"
?"text" "opened" "no" ? ? "yes"
>
> I tried closeAllConnections() but of no use.
>
> When I try to delete a downloaded file . It says cannot be done because
> "folder is open in R GUI front end"
>
> Any idea how to resolve this?
>
>> sessionInfo()
> R version 2.11.1 (2010-05-31)
> i386-pc-mingw32
>
> locale:
> [1] LC_COLLATE=English_United Kingdom.1252 ?LC_CTYPE=English_United
> Kingdom.1252 ? ?LC_MONETARY=English_United Kingdom.1252 LC_NUMERIC=C
> LC_TIME=English_United Kingdom.1252
>
> attached base packages:
> [1] stats ? ? graphics ?grDevices utils ? ? datasets ?methods ? base
>
> other attached packages:
> [1] RCurl_1.4-4.1 ?bitops_1.0-4.1 zoo_1.6-4
>
> loaded via a namespace (and not attached):
> [1] grid_2.11.1 ? ? lattice_0.19-11 tools_2.11.1
>>
>
> ______________________________________________
> R-help at r-project.org mailing list
> 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.
>


-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
http://www.joshuawiley.com/