Re: Jena 3.17, TDB performance and behaviour with read-only transaction

2021-04-08 Thread Zak Mc Kracken
Hi Andy, thank you for your quick reply. On 08/04/2021 18:59, Andy Seaborne wrote: Now I'm seeing performance problems with the TDB used in read-only transactions, as explained by the documentation: https://github.com/Rothamsted/rdf2pg/blob/44f2bd16b27a6f13f447d1070f6abcea45f3d492/rdf2pg-

Re: Jena 3.17, TDB performance and behaviour with read-only transaction

2021-04-08 Thread Andy Seaborne
Hi Marco, Thanks for the report. Before I dive into the code - a couple of questions: On 08/04/2021 12:02, Zak Mc Kracken wrote: Hi all, I've upgraded the Jena version that I use with this tool: https://github.com/Rothamsted/rdf2pg Now I'm seeing performance problems with the TDB used in re

Join heavy query does not return

2021-04-08 Thread Adrian Gschwend
Hi everyone, I got a dataset of around 5 million triples where I do relatively join heavy queries on it. It's a OLAP cube like structure that combines a bunch of them in a view. Fuseki never returns, we configured it with -Xmx60g. I could not find any other options that could/should be adjusted b

Fwd: Re: updating persistent jena-fuseki dataset increases memory consumption in gigas

2021-04-08 Thread jaanam
Hello, Still one question regarding this old issue. The previous answer said: The heap size by default is quite small in the scripts. It might be an idea to increase it a bit to give query working space but 0.5 million is really not very big. What would be the suitable heap size in my case

Jena 3.17, TDB performance and behaviour with read-only transaction

2021-04-08 Thread Zak Mc Kracken
Hi all, I've upgraded the Jena version that I use with this tool: https://github.com/Rothamsted/rdf2pg Now I'm seeing performance problems with the TDB used in read-only transactions, as explained by the documentation: https://github.com/Rothamsted/rdf2pg/blob/44f2bd16b27a6f13f447d1070f6abce