Simon,
I don't think that killing a thread is a safe practice in general. It
would likely result in memory leaks and maybe in some other inconsistent
state that could crash the whole process. An interesting enhancement
for such cases would be to be able to provide a progress / abort callback.
Even
Le 28/07/2021 à 21:22, Simon Eves a écrit :
Dear All,
I am aware that some improvements were made in the 2.3 timeframe with
regards to dealing with large GeoJSON files, although even in 3.2,
it's still very slow and memory hungry.
Our system allows for aborting imports, but this only works reliably
once it has actually got to the stage of reading features from the
file. With the GeoJSON, it just sits in the GDALOpenEx call for ages.
My question, therefore, is whether it might be practical to run the
GDALOpenEx in a separate thread with a future to return the resulting
handle, such that it could be monitored and killed if necessary?
Mainly I would be concerned that killing the thread might trash some
global GDAL state that might then not be recoverable, or that the open
relies on some TLS for the process thread and therefore might not work
properly.
We're going to try it anyway, but opinions welcomed, thanks!
Simon
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Simon Eves
Senior Graphics Engineer, Rendering Group
100 Montgomery St (5th Floor), San Francisco, CA 94104, USA
Email: [email protected] <mailto:[email protected]> | Cell:
+1 (415) 902-1996
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