[GRASS-dev] v.what.rast: topology really necessary?

Blumentrath, Stefan Stefan.Blumentrath at nina.no
Wed Jan 11 02:38:41 PST 2017

Hi Martin,

Thanks for the hint. Will do so...


-----Original Message-----
From: Martin Landa [mailto:landa.martin at gmail.com] 
Sent: onsdag 11. januar 2017 11.26
To: Blumentrath, Stefan <Stefan.Blumentrath at nina.no>
Cc: GRASS developers list (grass-dev at lists.osgeo.org) <grass-dev at lists.osgeo.org>
Subject: Re: [GRASS-dev] v.what.rast: topology really necessary?

Hi Stefan,

2017-01-10 22:49 GMT+01:00 Blumentrath, Stefan <Stefan.Blumentrath at nina.no>:
> After repeated testing, a colleague of mine pointed out that I know occupy almost all available PostGIS connections on our server.
> It seems that connections hang from testing and that either v.external or v.what.rast does not close the PG connection properly after the module finishes... Or are there other possible explanations?

I would guess that the command which segfauls could be a problem. I tested all the commands including v.what.rast which segfaults and check number of active connection via pg_top. No connection hanged even I launched the command with segfault.

> Where should I look to find the source of the issue?

Install pgtop on the server, login as postgres user and run pg_top command. It will show you number of active connection. Run GRASS command and check number of connection.


Martin Landa

More information about the grass-dev mailing list