<div dir="ltr">Great to hear:-)<div>Thank you!</div><div><br></div><div>Michał</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">pon., 1 lip 2024 o 19:13 Even Rouault <<a href="mailto:even.rouault@spatialys.com">even.rouault@spatialys.com</a>> napisał(a):<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><u></u>
<div>
<p>Michał,</p>
<div>Le 01/07/2024 à 18:49, Michał Kowalczuk
via gdal-dev a écrit :<br>
</div>
<blockquote type="cite">
<div dir="auto">Did my email reached gdal mailing list?</div>
</blockquote>
<p>yes, it did. I just had a look</p>
<p>There's indeed an issue in the WMTS driver which I've ticketed at
<a href="https://github.com/OSGeo/gdal/issues/10348" target="_blank">https://github.com/OSGeo/gdal/issues/10348</a> . See bottom of the
ticket for a workaround.<br>
</p>
<p>Even<br>
</p>
<blockquote type="cite">
<div dir="auto"><br>
</div>
<div dir="auto">Regards</div>
<div dir="auto">Michal <br>
<div class="gmail_quote" dir="auto">
<div dir="ltr" class="gmail_attr">------ Wiadomość przekazana
dalej ------<br>
Od: <strong class="gmail_sendername" dir="auto">Michał
Kowalczuk</strong> <span dir="auto"><<a href="mailto:michkowalczuk@gmail.com" target="_blank">michkowalczuk@gmail.com</a>></span><br>
Data: pt., 28.06.2024 o 14:59<br>
Temat: WMTS huge difference in performance - cache issue<br>
Do: <<a href="mailto:gdal-dev@lists.osgeo.org" target="_blank">gdal-dev@lists.osgeo.org</a>><br>
</div>
<br>
<br>
<div dir="ltr">Hi,<br>
I have two sample WMTS servers.<br>
The first is a Polish geoportal:<br>
<a href="https://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500" target="_blank">https://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500</a><br>
and the second is German:<br>
<a href="https://basemap.de/dienste/wmts_capabilities_web_raster.xml" target="_blank">https://basemap.de/dienste/wmts_capabilities_web_raster.xml</a><br>
Both work well in QGIS.<br>
I use C API for creating bitmaps in my area of interest.<br>
I use GDALDatasetRasterIO function directly with WMTS
dataset and appropriate arguments.<br>
The first Polish server works smoothly for different
extents, different widths and heights of my output image.
Unfortunately, the second one (German) lasts forever.<br>
During debugging I concluded the thesis that every
GDALDatasetRasterIO in my loop over raster lines, GDAL do
not use cache but redownload the same tiles.<br>
<br>
Below is a fragment from GDAL log for well-working Polish
server:<br>
<i>[Fri Jun 28 13:06:16 2024].5430, 66.7590: HTTP:
Requesting [1/3] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=0" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=0</a><br>
[Fri Jun 28 13:06:16 2024].5430, 66.7590: HTTP: Requesting
[2/3] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=1" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=1</a><br>
[Fri Jun 28 13:06:16 2024].6670, 66.8830: HTTP: Requesting
[3/3] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=2" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=2</a><br>
[Fri Jun 28 13:06:16 2024].8230, 67.0390: HTTP: Request
[0] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=0" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=0</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:06:16 2024].8230, 67.0390: HTTP: Request
[1] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=1" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=1</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:06:16 2024].8230, 67.0390: HTTP: Request
[2] <a href="http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=2" target="_blank">http://mapy.geoportal.gov.pl/wss/service/WMTS/guest/wmts/G2_MOBILE_500?service=WMTS&request=GetTile&version=1.0.0&layer=G2_MOBILE_500&style=default&format=image/png&TileMatrixSet=EPSG:2180&TileMatrix=EPSG:2180:4&TileRow=2&TileCol=2</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:06:16 2024].8240, 67.0400: GDAL:
GDALOpen(/vsimem/wms/0000022663367550/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:06:16 2024].8260, 67.0420: GDAL:
GDALClose(/vsimem/wms/0000022663367550/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:06:16 2024].8270, 67.0430: GDAL:
GDALOpen(/vsimem/wms/00000226632272D0/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:06:16 2024].8300, 67.0460: GDAL:
GDALClose(/vsimem/wms/00000226632272D0/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:06:16 2024].8300, 67.0460: GDAL:
GDALOpen(/vsimem/wms/0000022661BEC8D0/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:06:16 2024].8330, 67.0490: GDAL:
GDALClose(/vsimem/wms/0000022661BEC8D0/wmsresult.dat,
this=000002266059B0E0) <br>
</i><br>
And here is log snippet for German server:<br>
<i>[Fri Jun 28 13:16:02 2024].0840, 652.3000: HTTP:
Requesting [1/5] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/0.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/0.png</a><br>
[Fri Jun 28 13:16:02 2024].0840, 652.3000: HTTP:
Requesting [2/5] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/1.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/1.png</a><br>
[Fri Jun 28 13:16:02 2024].2690, 652.4850: HTTP:
Requesting [3/5] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/2.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/2.png</a><br>
[Fri Jun 28 13:16:02 2024].2870, 652.5030: HTTP:
Requesting [4/5] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/3.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/3.png</a><br>
[Fri Jun 28 13:16:02 2024].3140, 652.5300: HTTP:
Requesting [5/5] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a><br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: HTTP: Request
[0] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/0.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/0.png</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: HTTP: Request
[1] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/1.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/1.png</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: HTTP: Request
[2] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/2.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/2.png</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: HTTP: Request
[3] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/3.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/3.png</a>
: status = 200, type = image/png, error = (null)<br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: HTTP: Request
[4] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a>
: status = 0, type = (null), error = (null)<br>
[Fri Jun 28 13:16:02 2024].5970, 652.8130: GDAL:
GDALOpen(/vsimem/wms/0000022661D59690/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].5990, 652.8150: GDAL:
GDALClose(/vsimem/wms/0000022661D59690/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].6190, 652.8350: WMS: Clean
cache<br>
[Fri Jun 28 13:16:02 2024].6190, 652.8350: GDAL:
GDALOpen(/vsimem/wms/000002266237A190/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].6200, 652.8360: GDAL:
GDALClose(/vsimem/wms/000002266237A190/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].6340, 652.8500: GDAL:
GDALOpen(/vsimem/wms/0000022662340E00/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].6340, 652.8500: GDAL:
GDALClose(/vsimem/wms/0000022662340E00/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].6350, 652.8510: GDAL:
GDALOpen(/vsimem/wms/00000226605A35B0/wmsresult.dat,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].6360, 652.8520: GDAL:
GDALClose(/vsimem/wms/00000226605A35B0/wmsresult.dat,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].6360, 652.8520: WMS:
ReadBlockFromCache<br>
[Fri Jun 28 13:16:02 2024].6370, 652.8530: CPLError:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
ERROR 4:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
[Fri Jun 28 13:16:02 2024].6370, 652.8530: CPLError:
GDALWMS: Unable to open downloaded block.<br>
ERROR 1: GDALWMS: Unable to open downloaded block.<br>
[Fri Jun 28 13:16:02 2024].6370, 652.8530: WMS: After
ReadBlockFromCache<br>
[Fri Jun 28 13:16:02 2024].6370, 652.8530: CPLError:
GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
[Fri Jun 28 13:16:02 2024].6370, 652.8530: CPLError:
GDAL_WMS>, band 3: IReadBlock failed at X offset 0, Y
offset 0: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDAL_WMS>, band 3: IReadBlock failed at X
offset 0, Y offset 0: GDALWMS: Unable to download block 4,
0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
[Fri Jun 28 13:16:02 2024].6380, 652.8540: GDAL:
GDALOpen(./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/1/5/15b3159bb18ea6f97264bd4d0bac680e,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].6380, 652.8540: GDAL:
GDALClose(./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/1/5/15b3159bb18ea6f97264bd4d0bac680e,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].6390, 652.8550: HTTP:
Requesting [1/1] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a><br>
[Fri Jun 28 13:16:02 2024].8540, 653.0700: HTTP: Request
[0] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a>
: status = 0, type = (null), error = (null)<br>
[Fri Jun 28 13:16:02 2024].8540, 653.0700: WMS:
ReadBlockFromCache<br>
[Fri Jun 28 13:16:02 2024].8550, 653.0710: CPLError:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
ERROR 4:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
[Fri Jun 28 13:16:02 2024].8550, 653.0710: CPLError:
GDALWMS: Unable to open downloaded block.<br>
ERROR 1: GDALWMS: Unable to open downloaded block.<br>
[Fri Jun 28 13:16:02 2024].8550, 653.0710: WMS: After
ReadBlockFromCache<br>
[Fri Jun 28 13:16:02 2024].8550, 653.0710: CPLError:
GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
[Fri Jun 28 13:16:02 2024].8550, 653.0710: CPLError:
GDAL_WMS>, band 3: IReadBlock failed at X offset 0, Y
offset 0: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDAL_WMS>, band 3: IReadBlock failed at X
offset 0, Y offset 0: GDALWMS: Unable to download block 4,
0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
[Fri Jun 28 13:16:02 2024].8560, 653.0720: GDAL:
GDALOpen(./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/1/5/15b3159bb18ea6f97264bd4d0bac680e,
this=000002266059B0E0) succeeds as PNG.<br>
[Fri Jun 28 13:16:02 2024].8560, 653.0720: GDAL:
GDALClose(./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/1/5/15b3159bb18ea6f97264bd4d0bac680e,
this=000002266059B0E0)<br>
[Fri Jun 28 13:16:02 2024].8570, 653.0730: HTTP:
Requesting [1/1] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a><br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: HTTP: Request
[0] <a href="https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png" target="_blank">https://sgx.geodatenzentrum.de/wmts_basemapde/tile/1.0.0/de_basemapde_web_raster_farbe/default/DE_EPSG_25832_ADV/02/0/4.png</a>
: status = 0, type = (null), error = (null)<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: WMS:
ReadBlockFromCache<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: CPLError:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
ERROR 4:
./gdalwmscache\76ac5c8f3010af4e1a17a26a53e6ac32/0/b/0bab9c0d45a96010ec0092c98e78a52d:
No such file or directory<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: CPLError:
GDALWMS: Unable to open downloaded block.<br>
ERROR 1: GDALWMS: Unable to open downloaded block.<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: WMS: After
ReadBlockFromCache<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: CPLError:
GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
[Fri Jun 28 13:16:03 2024].0760, 653.2920: CPLError:
GDAL_WMS>, band 3: IReadBlock failed at X offset 0, Y
offset 0: GDALWMS: Unable to download block 4, 0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).<br>
ERROR 1: GDAL_WMS>, band 3: IReadBlock failed at X
offset 0, Y offset 0: GDALWMS: Unable to download block 4,
0.<br>
URL: <br>
HTTP status code: 0, error: (null).<br>
Add the HTTP status code to <ZeroBlockHttpCodes> to
ignore this error (see <a href="http://www.gdal.org/frmt_wms.html" target="_blank">http://www.gdal.org/frmt_wms.html</a>).</i><br>
<br>
How you see, GDAL tries to open cache that does not exist.<br>
But in fact, it exist. I found all necessary tile for full
extent map request in gdalwmscache folder.<br>
<div>I can not send it in this email because of message size
limits.</div>
<div><br>
</div>
<div>Regards,</div>
<div>Michał</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
gdal-dev mailing list
<a href="mailto:gdal-dev@lists.osgeo.org" target="_blank">gdal-dev@lists.osgeo.org</a>
<a href="https://lists.osgeo.org/mailman/listinfo/gdal-dev" target="_blank">https://lists.osgeo.org/mailman/listinfo/gdal-dev</a>
</pre>
</blockquote>
<pre cols="72">--
<a href="http://www.spatialys.com" target="_blank">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
</div>
</blockquote></div>