Pantelis, > On 19 Apr 2016, at 07:29, Pantelis Natsiavas <natsia...@gmail.com> wrote: > > Thank you very much for your answer. > > I had not checked the system by a status() command. However, everything > seemed normal. The virtuoso GUI and the rest of the system had not been > hanged or something. I had not noticed delays or anything like that. I will > try to reload the specific triples and if I see something peculiar through > the status() command, I will let you know. > > Please allow me to ask (or repeat) some questions: > > 1. Since I deleted a huge amount of triples, I would expect the database's > file size to be reduced. Am I right? How could I free the respective disk > size?
[Hugh] allocated space is not reclaimed as data is deleted as it is assumed it
will be required again at some point and have to be reallocated. The only way
to reclaim the space would be to dump and reload the data.
> 2. Now that my disk is full, I will add another a lot bigger hard disk to my
> VM. How could I move the virtuoso database file to the new dedicated disk?
> Moving the /usr/local/var/lib/virtuoso/db/virtuoso.db file and changing the
> respective path to the "DatabaseFile" of the virtuoso.ini file would be
> enough?
[Hugh] Yes, that is all that would be required
> 3. Is there a log file that I could use in order to provide useful debugging
> information to you when something goes wrong?
[Hugh] The virtuoso.log file is where such information is logged and is set to
the highest ErrorLogLevel 7 by default as indicated at:
http://docs.openlinksw.com/virtuoso/databaseadmsrv.html#srvadmlogging
The virtuoso trace_on() function can be used logging specified server
operations for debugging purposes, but can be quite verbose by default thus
should choose what should be logged, as detailed at:
http://docs.openlinksw.com/virtuoso/fn_trace_on.html
Regards
Hugh
>
> Kind regards,
> Pantelis Natsiavas
>
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