[GRASS-user] v.what.vect never ends, SQLite warning

Mehrdad Varedi varedi at gmail.com
Wed May 22 13:20:21 PDT 2019

Hi Everyone,
When I try v.what.vect on a point layer and the output of a v.voronoi,
after around an hour I begin getting the warnings that apparently are
because of an SQLite database lock.

This is not what happens with v.what.vect only.
When exporting the layer to shapefile or any other format it happens too.
The point layer is not very big. it has 275,000 records and each has 350
features (they are mostly double precision). The same happens with v.color
on this layer.

I have read feedback like, the SQLite doesn't like concurrent access on the
same table, although I have restarted the computer, run only grass or tried
to run it from R within GRASS and no other connection to that database
existed, although the process takes forever and I begin getting the warning
"Waiting for XXX seconds"

Do you know how can I accelerate the processing or make it work?

FYI, the CPU is not very busy more than 15-20% of its total capacity and
the memory of 16GB is usually half free. The writing on disk is very
minimal when it is working before the SQLite lock warning.

Kind regards,


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