Re: Fuseki and bulk loading problem via HTTP (heap space)

[Davide <ka...@gmail.com>]

I resolved the issue, It was a configuration problem. Thanks

2018-06-30 17:57 GMT+02:00 Andy Seaborne <an...@apache.org>:

> Davide,
>
> A couple of things aren't clear:
>
> * Is the server being used for other requests at the same time?
> * After how many interactions do problems occur?
> * What's the stacktrace for the heap space problem?
>
>     Andy
>
>
>
> On 30/06/18 09:32, Davide wrote:
>
>> Hi,
>> I have some problems with Fuseki server and the triples loading via HTTP.
>> In my code, I add triples in the local model. When it reaches 300'000
>> triples, I load the model in the database with HTTP using:
>>
>> "RDFConnectionFactory.connect("url")"
>>
>> to create a connection with the database. Then I load the model in Fuseki
>> with:
>>
>> "conn.load(model)"
>>
>> After that, I create a new model with "ModelFactory.createDefaultMod
>> el()",
>> and I start another time to load triples in the model. This approach works
>> iteratively.
>>
>> Well.. for the first iteractions, the db loads data without problems. The
>> problem is when the algorithm has already load many models. Because the
>> loading becomes slower, until the server crash due to heap space problems.
>> I increase the heap space size until 8 gb but I haven't resolve the
>> problem. Then I would ask you how to resolve this problem, and if this
>> approach is correct for this kind of problems.
>>
>> Regards
>>
>> Davide
>>
>>