Ciao Tam, a few things: -1- give a quick read to these slides http://goo.gl/74XUPq -2- why are you warping to google mercator? -3- which version of GeoServer are you using? -4- please, attache the mosaic.properties files that geoserver creates for you -5- you might want to consider creating lesser geotiff files mergine some of the original jp2 files prior to adding overviews.
Regards, Simone Giannecchini == Meet us at GEO Business 2014! in London! Visit http://goo.gl/fES3aK for more information. == Ing. Simone Giannecchini @simogeo Founder/Director GeoSolutions S.A.S. Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 333 8128928 http://www.geo-solutions.it http://twitter.com/geosolutions_it ------------------------------------------------------- On Thu, Apr 24, 2014 at 8:44 PM, tt5430 <[email protected]> wrote: > I have 1-meter resolution imagery thatI downloaded from this site: > http://viewer.nationalmap.gov/viewer/. Due to the size of the raster data, > the results are broken into chucks and the downloaded format is JP2. I used > the following scripts to convert the JP2 to GeoTiff: > > for file in *.jp2;do > filename=`echo "$file" |cut -d'.' -f1` > gdal_translate -of GTiff $file $filename.tif > gdalwarp -t_srs EPSG:3857 $filename.tif $filename-warped.tif > gdal_translate -co "TILED=YES" -co "BLOCKXSIZE=512" -co "BLOCKYSIZE=512" > $filename-warped.tif $filename.tif > gdaladdo -r cubic $filename.tif 2 4 8 16 32 64 128 > rm $filename-warped.tif > done > > Below is the output of gdalinfo of one of the GeoTiff file: > Files: m_3711909_ne_11_1_20120628_20120904.tif > Size is 6562, 7948 > Coordinate System is: > PROJCS["WGS 84 / Pseudo-Mercator", > GEOGCS["WGS 84", > DATUM["WGS_1984", > SPHEROID["WGS 84",6378137,298.257223563, > AUTHORITY["EPSG","7030"]], > AUTHORITY["EPSG","6326"]], > PRIMEM["Greenwich",0], > UNIT["degree",0.0174532925199433], > AUTHORITY["EPSG","4326"]], > PROJECTION["Mercator_1SP"], > PARAMETER["central_meridian",0], > PARAMETER["scale_factor",1], > PARAMETER["false_easting",0], > PARAMETER["false_northing",0], > UNIT["metre",1, > AUTHORITY["EPSG","9001"]], > EXTENSION["PROJ4","+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 > +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext > +no_defs"], > AUTHORITY["EPSG","3857"]] > Origin = (-13352064.088617129251361,4562412.907068637199700) > Pixel Size = (1.267235134041296,-1.267235134041296) > Metadata: > AREA_OR_POINT=Area > Image Structure Metadata: > INTERLEAVE=PIXEL > Corner Coordinates: > Upper Left (-13352064.089, 4562412.907) (119d56'37.08"W, 37d52'46.09"N) > Lower Left (-13352064.089, 4552340.922) (119d56'37.08"W, 37d48'28.87"N) > Upper Right (-13343748.492, 4562412.907) (119d52' 8.16"W, 37d52'46.09"N) > Lower Right (-13343748.492, 4552340.922) (119d52' 8.16"W, 37d48'28.87"N) > Center (-13347906.290, 4557376.915) (119d54'22.62"W, 37d50'37.51"N) > Band 1 Block=512x512 Type=Byte, ColorInterp=Red > Overviews: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, 103x125, 52x63 > Mask Flags: PER_DATASET ALPHA > Overviews of mask band: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, > 103x125, 52x63 > Band 2 Block=512x512 Type=Byte, ColorInterp=Green > Overviews: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, 103x125, 52x63 > Mask Flags: PER_DATASET ALPHA > Overviews of mask band: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, > 103x125, 52x63 > Band 3 Block=512x512 Type=Byte, ColorInterp=Blue > Overviews: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, 103x125, 52x63 > Mask Flags: PER_DATASET ALPHA > Overviews of mask band: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, > 103x125, 52x63 > Band 4 Block=512x512 Type=Byte, ColorInterp=Alpha > Overviews: 3281x3974, 1641x1987, 821x994, 411x497, 206x249, 103x125, 52x63 > > Depending on the size of the selected area, the number of files can be in > the 50s or even 100s. I tested with a sample imagery that has 24 JP2 files > and create a store using ImageMosaic. The performance was not good. Can > someone tell me what is the best way to perpare this kind of imagery for > best performance? > > Many thanks in advance, > > Regards, > Tam > > > > > > -- > View this message in context: > http://osgeo-org.1560.x6.nabble.com/Prepare-GeoTiff-data-for-optimal-performance-tp5136963.html > Sent from the GeoServer - User mailing list archive at Nabble.com. > > ------------------------------------------------------------------------------ > "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE > Instantly run your Selenium tests across 300+ browser/OS combos. Get > unparalleled scalability from the best Selenium testing platform available. > Simple to use. Nothing to install. 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