[GRASS-dev] [BUG] or at least unclear error message

[Markus Neteler]

On Mon, Nov 2, 2015 at 11:50 AM, Rainer M Krug <Rainer at krugs.de> wrote:
> Hi
>
> OS: OS X, El Capitan, grass installed via homebrew.
>
> I have a mega location with 532 read-only mapsets with each around 2500 mapsets
> (plus PERMANENT and an read-write analysis mapset).
>
> When using g.list type=rast mapset=* I get the following error: "Unable
> to open directory". I guess this is caused by to many open files as I
> can execute the command g.list type=rast mapset=... for this mapset
> without problems.

You likely hit the current setting of open files. See e.g. this page
how to set a higher limit:

https://grass.osgeo.org/grass70/manuals/r.series.html#management-of-open-file-limits

Please let us know how it goes.

Markus