Dear Fuseki users,

I want to use Fuseki 2 for querying various big ontologies, e.g. dbpedia. 
However, I have encountered the problem that Fuseki is ignoring the timeout 
setting.

I started the server with

./fuseki-server --timeout=100000

which should set the timeout to 100s, but it is rather 3s (see below). I have 
seen that there were some discussions regarding the handling of timeouts, but 
I'm not sure if this is related to my problem. Here's the log - please note 
that I'm using one of the latest snapshot builds (the official 2.0.0 release is 
behaving the same way for me):

[2015-04-17 09:53:14] Server     INFO  Fuseki 2.0.1-SNAPSHOT 
2015-04-16T16:45:46+0000
...
[2015-04-17 09:53:58] Config     INFO  Register: 
/dbpedia_topical_concepts_unredirected_en
[2015-04-17 09:53:58] Config     INFO  Register: /dbpedia_wikipedia_links_en
[2015-04-17 09:53:58] Server     INFO  Started 2015/04/17 09:53:58 MESZ on port 
3030
[2015-04-17 09:54:12] Fuseki     INFO  [1] POST 
http://xxx.xxx.xxx.xxx:3030/dbpedia_page_links_unredirected_en/query
[2015-04-17 09:54:12] Fuseki     INFO  [1] POST 
/dbpedia_page_links_unredirected_en :: 'query' :: 
[application/x-www-form-urlencoded charset=UTF-8] ?
[2015-04-17 09:54:12] Fuseki     INFO  [1] Query = select (count(*) as ?count) 
{?s ?p ?o}
[2015-04-17 09:54:15] Fuseki     INFO  [1] 503 The query timed out (restricted 
to 100000 ms) (3,098 s)

The problem appears with other queries as well. Sometimes limiting the result 
set (e.g. by appending "LIMIT 20" to the SPARQL query) helps.

The system is a quad core virtual machine with 32 GB RAM, running Ubuntu 14.04. 
"java -version" is reporting:

OpenJDK Runtime Environment (IcedTea 2.5.4) (7u75-2.5.4-1~trusty1)
OpenJDK 64-Bit Server VM (build 24.75-b04, mixed mode)

I would highly appreciate any advice. I really like Fuseki and would love to 
use it for some data mining in medical informatics.

Many thanks,
Sebastian

------------------------------------------------------------------------------------------
Dipl.-Inf. Sebastian Mate

Lehrstuhl für Medizinische Informatik
Friedrich-Alexander-Universität Erlangen-Nürnberg
Wetterkreuz 13, 91058 Erlangen-Tennenlohe, Germany

Tel. +49 (9131) 85-26722  //  Fax +49 (9131) 85-26754
eMail: [email protected]




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