[gdal-dev] [EXTERNAL] Re: gdal.Rasterize with same OGR dataset from two python threads

[Meyer, Jesse R. (GSFC-618.0)[SCIENCE SYSTEMS AND APPLICATIONS INC]]

This solved the crashes, though there was no performance improvement from having these run in parallel.  Difficult to say from here if this is a Python GIL or SQL contention issue.

Best,
Jesse

Lead Computer Scientist
Science Systems and Applications, Inc.
Dr Compton Tucker Team
NASA Goddard Space Flight Center

From: Even Rouault <even.rouault at spatialys.com>
Date: Monday, October 28, 2024 at 12:19 PM
To: Meyer, Jesse R. (GSFC-618.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] <jesse.r.meyer at nasa.gov>, Meyer, Jesse R. (GSFC-618.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] via gdal-dev <gdal-dev at lists.osgeo.org>
Subject: Re: [EXTERNAL] Re: [gdal-dev] gdal.Rasterize with same OGR dataset from two python threads
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Le 28/10/2024 à 17:15, Meyer, Jesse R. (GSFC-618.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] a écrit :
How can I “open” a handle to a pre-existing memory dataset?  That sounds like it may work for me.

If it is a dataset from the "Memory" driver, no. Otherwise you could for example create a GeoPackage (or shapefile... if you don't want to hit any SQLite locking) as a /vsimem/ file and open it as many times as wished.



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