Hi Frans,

How are you calling the TTLP_MT() function to load multiple files and when you 
says these file are small what is there typical size or number of lines/triples 
? For loading of large number of files I would expect you to be using the 
rdf_loader_run() bulk loader function which calls ttlp() under the covers for 
loading as detailed at:

        
http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtBulkRDFLoader

Using this method you can then use the LDMeter functions to monitor the load 
rates as detailed at:

        
http://virtuoso.openlinksw.com/dataspace/doc/dav/wiki/Main/VirtTipsAndTricksGuideLDMeterUtility

Also, at the time the TTLP load appear to hang I presume you can still access 
the server in which case what does the "status();" command reports as to the 
status of the server at that point ? How much memory is  on the system and how 
much does the "top" command report as being used by Virtuoso ?

Best Regards
Hugh Williams
Professional Services
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On 18 Apr 2014, at 10:12, Frans Knibbe | Geodan <frans.kni...@geodan.nl> wrote:

> Hello,
> 
> I am using the function TTLP_MT to load ntriple files in Virtuoso 7.1. Even 
> though I take care to have reasonably small files (splitting the files by 
> line numbers if necessary) TTLP_MT still frequently hangs. I have to restart 
> Virtuoso, remove the partial load results and start over. This is quite 
> bothersome, because I have a lot of data to load. I would like to be able to 
> load the files from a script without constantly having to check if Virtuoso 
> hangs and making repairs.
> 
> Are there any tips on getting TTLP_MT to work without hanging? I think the 
> memory configuration is OK, available system memory is used without disk 
> swapping.
> 
> Regards,
> Frans
> 
> 
> Frans Knibbe
> Geodan
> President Kennedylaan 1
> 1079 MB Amsterdam (NL)
> 
> T +31 (0)20 - 5711 347
> E frans.kni...@geodan.nl
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