Search code examples
sparql4store

setting soft limit for 4store client

While running the sparql queries I get the warning

    # hit complexity limit 20 times, increasing soft limit may give more results

and this is not dependent to any particular query but for all.I wanted to know how can I increase the soft limit if I am not using the http interface rather I am using the 4store client master

Solution

  • By default 4store gives a soft limit of about 1000. You have a couple of options to tweak/disable search breadth:

    • If using 4s-query you can override the setting with --soft-limit e.g. 4s-query --soft-limit 5000 demo 'SELECT ... etc.'. Setting it to -1 completely disables it.

    • If using a 3rd party client you can tweak soft limit with a cgi parameter e.g. sparql-query 'http://example.org/sparql/?soft-limit=-1'

    • You can set the soft limit globally when starting the sparql server with the -s parameter. See 4s-httpd --help.