Hello Andrea Thanks for the info. Little question/suggestion then: what do you think of the idea that, when the .qix file is absent, DataStoreFinder.getDataStore returns a non-indexed ShapefileDataStore? Would that be possible? Because, if generating the .qix file is problematic, then I think it would be better to forget about it altogether when it's not there.
Cheers, Milton Andrea Aime wrote: > Milton Jonathan ha scritto: >> Hello list >> >> We're trying to read a reasonably large shapefile (~45MB in the .shp >> file, ~30MB in the .dbf file) using the IndexedShapefileDataStore. >> Everything works fine when a previously generated .qix file is >> available. However, when the QuadTree needs to be generated, too much >> memory is being allocated (up to 100MB before blowing up the memory >> heap). This happens at method ShapeFileIndexer.buildQuadTree(). >> >> Is this to be expected? It ends up being a little annoying since often >> the .qix file is not present and/or there are timesamp differences >> between the files that end up requesting a new QuadTree to be built. >> Is there a a more memory-friendly way to build the tree? > > Nope, not at the moment. I've noticed the issue one year ago > in GeoServer (http://jira.codehaus.org/browse/GEOS-1570) but never > had the time to fix it. As a temporary workaround I use the shptree > utility distributed along with MapServer to build the .qix indexes, > the format is the same > > Cheers > Andrea > -- Milton Jonathan Grupo GIS e Meio Ambiente Tecgraf/PUC-Rio Tel: +55-21-3527-2502 ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Geotools-gt2-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geotools-gt2-users
