HughWilliams

What is the kernel [`swappiness`](https://vos.openlinksw.com/owiki/wiki/VOS/VirtRDFPerformanceTuning#Linux-only%20--%20%22swappiness%22) setting on both servers?

We are looking into this ...

This issue has been resolved in the latest [stable/7](https://github.com/openlink/virtuoso-opensource/tree/stable/7) branch and [Virtuoso_Open_Source_for_Windows.exe](https://github.com/openlink/virtuoso-opensource/releases/download/v7.2.12/Virtuoso_Open_Source_for_Windows.exe) installer ...

Can you confirm the [`SPARQL_LOAD_SERVICE_DATA` role](https://community.openlinksw.com/t/enabling-sparql-1-1-federated-query-processing-in-virtuoso/2477) is enabled on the Virtuoso host running the SPARQL query, as detailed in the post? BTW, the fix for https://github.com/openlink/virtuoso-opensource/issues/571 should be in the...

A variable is void if no combination of data in the database can result in a binding for this variable. In most cases, a void variable is not what the...

You just don't pass the `&signal_void=on&signal_unconnected=on` params in the query URL passed by the application accessing the SPARQL endpoint, which is what are turned on by default in the SPARQL...

So basically you are continuously deleting and loading the same RDF dataset ? What does the output of the Linux `top` command and Virtuoso `status();" command run from "isql" report...

Looking at the `virtuoso.ini` config file, I note the following settings: ``` ThreadCleanupInterval = 0 ResourcesCleanupInterval = 0 ``` Setting these to `0` results in no cleanup of thread and...

I assume the Virtuoso instance was restarted when the INI file parameters where changed, such that they will take effect? (These settings do not take effect on a running instance...

Where did you obtain the indicated `ODS Framework - 1.89.49 / 2022-05-18` VAD from, as that looks like a Virtuoso Enterprise VAD which is not compatible with Virtuoso Open Source....