If I parse your email correctly: - You CAN open that uri in the gdalinfo bash command - you CANNOT open it in Python - You CANNOT open it in c#
Is this correct? That, together with your trace that suggests that the C# bindings (and therefore presumably also the Python bindings) are doing their job and GDAL is opening the correct URI - and getting the first 16k chunk back - but there is a timeout. have you tried increasing the 16k chunk size to see if that is related to the problem - I think that is this : Partial downloads (requires the HTTP server to support random reading) are done with a 16 KB granularity by default. Starting with GDAL 2.3, the chunk size can be configured with the CPL_VSIL_CURL_CHUNK_SIZE configuration option, with a value in bytes. If the driver detects sequential reading it will progressively increase the chunk size up to 2 MB to improve download performance. Starting with GDAL 2.3, the GDAL_INGESTED_BYTES_AT_OPEN configuration option can be set to impose the number of bytes read in one GET call at file opening (can help performance to read Cloud optimized geotiff with a large header). > > from https://gdal.org/user/virtual_file_systems.html I would ask the wider community if the GDAL_HTTP_TIMEOUT option is real and current - it is only mentioned in the older documentation and not the current documentation. On Wed, 21 Apr 2021 at 06:04, Jeannie May <jeannie_...@trimble.com> wrote: > We're unable to get this working from our c# code on the EC2 instance. It > appears to be an issue related to c# and curl. Attached is a sample c# and > log: > > The open works fine from our container using bash, but not python. It's a > real mixed bag. BTW Its linux and using an IAM role. > > > > > > > -- > *Jeannie May* > Senior Software Engineer > 11 Birmingham Drive, Christchurch | 963 5305 Office > www.trimble.com > > Connect with us! > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev >
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