[GRASS-user] r.3.count.categories compression error -14

[Markus Neteler]

Hi Olivier,

<Olivier.C.Canon at umwelt.uni-giessen.de> schrieb am Do., 16. Juli 2020,
15:38:

> Hello everyone,
>
> I’m using the 3D-Forest-Fragementation Modul developed by Vaclav and
> have produced a workflow for the calculation. It is working well and
> I’m getting plausible results. While applying this workflow for my
> whole study region (35 plots/regions) it only works for about 50 % of
> the plots. The others fail at the step where I use
> r3.count.categories. I can’t see the link respectively the difference
> for this error. That’s why am asking for a hint:
>
> I’m running Grass 7.8.2 (64 bit), Python 3.7.0, wxPython 4.0.7 on Windows
> 10
>
> The problem occurs while running this command:
>
> "r3.count.categories input=ff_mean_131_2 output=ff_mean_131_2_count
> slices=ff_mean_131_2_slice --overwrite"
>
> With this error:
>
> "[…]
> Raster map 22 Filename: ff_mean_131_2_slice_00022
> Raster map 23 Filename: ff_mean_131_2_slice_00023
> WARNING: ZSTD compression error -14: Unsupported frame parameter
> ERROR: Error uncompressing raster data


Did you copy by chance the data from a different machine?

This error comes to mind:

https://lists.osgeo.org/pipermail/grass-user/2019-March/080180.html

Best
markusN


for row 43 of
> <ff_mean_131_2_slice_00010>
> ERROR: An error occurred while running r.mapcalc with expression:
> ff_mean_131_2_count_0 = int(ff_mean_131_2_slice_00001 == 0) + […]"
>
> For each failing plot the error occurs in this step. The slices seem
> to be generated correctly. I couldn’t see differences while displaying
> them or comparing the raster metadata.
> In the different plot its always another slice (2D Raster) and another
> row where the uncompressing fails. I tried to reduce the plot-size and
> found out, that the error occurs always in the same row of a plot. If
> this row is excluded, it works fine.
> That’s why I think it has nothing to do with missing space on disk, or
> not enough calculating capacity.
> Has someone an idea what’s the problem? Thanks very much!
>
> Greetings,
> Olivier
>
>
>
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