Hi,
I'm fighting a relatively nasty issue. I've implemented a WMS service (Web
Map Server), which basically
returns a geographic map in response to a request stating which data to use,
which area to display, which style to apply to the map, and so on.

The main trouble is that building the map can take anywhere from 100ms to
minutes, depending on
how much data is needed, and during the map building time the output stream
is not touched (the map is drawn on a buffered image, which is encoded to
png/gif/jpeg only when completely drawn).
It happens quite often that the client closes the connection because the map
is taking too much time to be generated, and I would like to be informed
about this right away to avoid wasting precious resources.

Is there any way to know?
Cheers
Andrea

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