Re: [Virtuoso-users] Performance problems while uploading data

Hi Hugh, I haven't got the logs or core dump at hand at the moment, but it should be very easy to reproduce: just send the server a single query like "sparql insert into graph { . . . ... }", with 100,000 triples in the query. As I said, I realise this is an unreasonable thing to

Re: [Virtuoso-users] Performance problems while uploading data

Hi Jan, We are looking into these performance issue you report and shall respond back to you on them in a while. With regards to the server crash you report when performing a SPARQL insert query, was anything written to the Virtuoso Server log (virtuoso.log) at the time of the crash and w

[Virtuoso-users] Performance problems while uploading data

Hi all, I've noticed a few performance problems while using the Virtuoso JDBC driver (virtjdbc3.jar, from the Open Source release version 5.0.6) to upload triples to a Virtuoso server. First of all, I've been trying to do batch queries using Statement.addBatch() and Statement.executeBatch(). Whi