[Nepomuk] general questions: virtuoso-t & nepomukstorage, desktopsearch

[Sebastian Trüg]

Hi Mat,

On 10/13/2011 03:58 PM, Matthias Lechner wrote:
>> I have not noticed this problem in my systems but I have quite limited
>> indexed folders to maintain my database as small as possible. If you don't
>> have manual data: tags, ratings, coments, maybe deleting your database could
>> help.
> I tried that once, when I did a complete reset of my akonadi/nepomuk 
> installation. It did not change anything, unfortunately. Also, the duration of 
> the lag seems to be connected with the size of the database, which might 
> explain why you do not observe this behaviour. However, reducing the database 
> size is not useful for me, since the very reason why I need an indexer is that 
> my files are so numerous that I cannot find them on my own quickly.

It would be interesting to know if the indexing of all files has
finished. If virtuoso is spiking we could debug the issue by logging
into the db:

isql localhost:1111 dba dba

and then calling:

status();

Then the problematic queries should be shown which should help to debug
the problem.

Another important issue are the versions of everything: kde, strigi,
akonadi.

>> In theory if don't appears then there is not indexed. Consider that
>> strigi service fails indexing some files, for example flac files, so you may
>> experiencing this problem.
> Hm, but this problem also occurs with such general stuff like directories. 
> strigi should be able to index directories, and it successfully does for at 
> least some. But is there any log file that says "failed to index blabla" ?

I have a patch which introduces exactly that functionality as a hidden
config option. Sadly I cannot test it due to some weird linker problem I
cannot figure out.
But I attached the patch in case you want to give it a try. It applies
in kde-runtime/nepomuk. You need to add "debug mode=true" to
~/.kde/share/config/nepomukstrigirc for it to work. Then failures are
written to ~/.kde/share/apps/nepomuk/file-indexer-error-log

Directories are normally indexed just fine.

Cheers,
Sebastian

>> I developed an alternative search method that might be useful to you. It's
>> not integrated in KDE, Krunner or Dolphin, for desing reasons but it has a
>> good query language, supports UTF-8 and don't supports Akonadi :). Nepoogle
>> is called and you can found here:
> 
> Thanks, maybe I'll try that!
> 
> Regards, 
> Mat
> 
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