Thanks for the information Simon/Andy. I won't pursue the Lucene spatial integration.
It turns out it was a few mistakes on my part causing the slowness anyway. We are using Jena 5.5.0 and after fixing the below issue, it seems to work very well. >From what I can figure my issues were coming from a misconfiguration in the >assembler for my dataset. I had fusekiService --> textDatatset --> geosparqlDataset --> tdb2Dataset. Which was causing some odd behavior. I changed that to fusekiService --> geosparqlDataset --> textDataset --> tdb2Dataset. and things seem to be operating normally now. Generally, is there advice or documentation somewhere with recommended assembler setups? I need to add a deltaDataset to the mix too, and I'd love to see some examples that work with all of these capabilities. cheers, Lawson On Thursday, September 4th, 2025 at 06:02, Andy Seaborne <[email protected]> wrote: > > On 03/09/2025 08:15, Simon Bin wrote: > > > Did you already try our index improvements in Jena 5.5.0? > > > > On Tue, 2025-09-02 at 23:30 +0000, [email protected] wrote: > > > > > Hi all, > > > > > > I am looking into Lucene spatial index integration with Fuseki. > > > Hi Lawson, > > jena-spatial, the module using Lucene spatial indexing was last released > in 2019. > > https://github.com/apache/jena/blob/main/archived-modules.md > > It is no longer in the jena releases. > The source code is available from git with tag "jena-3.12.0". > > Andy > > > > From previous mailing list discussions [1] it seems that this is > > > supported in some way, but I am struggling to find any documentation > > > or examples around it. > > > > > > Does anyone have experience building and using a Lucene spatial index > > > with Fuseki? > > > > > > The reason for the investigation is because we are suffering from too > > > long build times for the native Jena spatial index, and I am starting > > > to look for alternatives. > > > Is the index persistent? > > > > [1] > > > https://users.jena.apache.narkive.com/bbRiIrmw/spatial-distance-in-fuseki > > > > > > regards. > > > > > > Lawson Lewis > > > > > > Infrastructure and Development > > > > > > KurrawongAI > > > > > > [emailAddress] [email protected] > > > > > > [website] https://kurrawong.ai
