On lundi 14 janvier 2019 12:00:27 CET Idan Miara wrote: > Hi, > > Due to the following bug: > https://trac.osgeo.org/gdal/ticket/5067 > When I need to make multiple overviews for a large tiff I use the suggested > workaround (making tif.ovr, tif.ovr.ovr, tif.ovr.ovr.ovr etc...). > This workaround works well for applications that use gdal (i.e. QGIS) but > Geoserver's internal GeoTiff reader ignores the multiple ovr files (I > assume it reads only the tif+tif.ovr files) thus the performance for this > map is very bad. > > Workaround I found: I use the gdal-geoserver plugin and then create a > trivial vrt for the tif and load it in Geoserver with the gdal plugin. > I needed to make a VRT because as far as I can tell Geoserver doesn't > register the GeoTiff format with gdal when the plugin is installed but > still uses the internal GeoTiff reader). > > A few questions: > 1. Is there a plan to solve that very old gdaladdo bug? (I didn't check > with recent gdal versions but it still not marked as resolved as in 6 years)
That could be very involved to fix that due to how things work in libtiff. You can use the workaround suggested in the ticket to create a single file from all the .tif, .ovr, .ovr.ovr, etc. gdal_translate process.tif process_with_ovr.tif -co COPY_SRC_OVERVIEWS YES -co COMPRESS=DEFLATE That will take some time, but not more than really needed. Even -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ Geoserver-devel mailing list Geoserver-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/geoserver-devel
