[Gdal-dev] HFA Driver behavior when spill file is present

[Frank Warmerdam]

Ozy Sjahputera wrote:
> Hi All,
> 
> I just noticed a strange behavior of GDAL HFA driver.  Suppose you have 
> an HFA file that is over 2GB in size.  This causes the creation of the 
> spill (.ige) file. When you try to use Create() in GDALDriver class 
> using the same name of the existing HFA file, instead of overwriting the 
> pre-existing file GDAL simply appends more data to the spill file.  So 
> you will end up with larger .ige file.  If I have a repeat process that 
> uses the same filename, the .ige grows along with the process and it 
> eats up the disk space unnecessarily, unless I specifically remove the 
> old HFA file before creating a new one.
> 
> Is there a way for me to just overwrite the old HFA image file when I 
> create a new one?
> Thanks.

Ozy,

This is a bug - please file a bug report on it.  The HFA driver Create()
method really ought to delete the .ige file.

Best regards,
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