[R-sig-Geo] readRAST6: too many open files

[Agustin Lobo]

Here it is:

R version 2.9.0 (2009-04-17)
i486-pc-linux-gnu

locale:
LC_CTYPE=es_ES.UTF-8;LC_NUMERIC=C;LC_TIME=es_ES.UTF-8;LC_COLLATE=es_ES.UTF-8;LC_MONETARY=C;LC_MESSAGES=es_ES.UTF-8;LC_PAPER=es_ES.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=es_ES.UTF-8;LC_IDENTIFICATION=C

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

other attached packages:
[1] spgrass6_0.6-4 XML_1.95-3     rgdal_0.6-7    sp_0.9-34    

loaded via a namespace (and not attached):
[1] grid_2.9.0      lattice_0.17-22


We are upgrading to match your versions, will retry and let you know

Agus

Roger Bivand wrote:
> On Tue, 5 May 2009, Agustin Lobo wrote:
>
>> We're using
>> rastdum <- readRAST6("nomdum",cat=F,ignore.stderr = T)
>>
>> (on a ubuntu 8.10 machine and R 2.9)
>> within a for() loop of hundreds of iterations.
>>
>> At some point (ca. 199) we get an error
>> "Too many open files"
>>
>> and suspect that this is because readRAST6() is opening
>> and not closing files. Is this a bug?
>
> Possibly, but a complete sessionInfo() would be necessary - the 
> versions of the packages involved may matter. Does this reproduce with 
> readRAST6() in a loop reading say the same raster? I've run 300 reads 
> of spearfish elevation.dem without seeing problems for:
>
>> sessionInfo()
> R version 2.9.0 (2009-04-17)
> i386-pc-mingw32
>
> locale:
> LC_COLLATE=Norwegian (Bokmål)_Norway.1252;LC_CTYPE=Norwegian 
> (Bokmål)_Norway.1252;LC_MONETARY=Norwegian 
> (Bokmål)_Norway.1252;LC_NUMERIC=C;LC_TIME=Norwegian (Bokmål)_Norway.1252
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] spgrass6_0.6-5 XML_2.3-0      rgdal_0.6-8    sp_0.9-36
>
> loaded via a namespace (and not attached):
> [1] grid_2.9.0      lattice_0.17-22
>
> Roger
>
>> I remember having
>> a similar problem with writeGDAL() on a win machine a long ago,
>> but that problem was fixed.
>>
>> Thanks
>>
>> Agus
>>
>>
>
> ------------------------------------------------------------------------
>
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> R-sig-Geo at stat.math.ethz.ch
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>   

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