Do I need to restart a repository after changing its configuration?

[Manuel Fiorelli]

Dear all,

I've been experimenting with changing the value of ShaclSailSchema.VALIDATION_ENABLED in the configuration of a repository at runtime. However, I've the impression that the change enters into effect only after restarting the repository. In my experiments, I restarted my application. If I am right, is there a more lightweight approach? Perhaps, calling LocalRepositoryManager.shutdown and then LocalRepositoryManager.init

What about remote repositories? Ontotext GraphDB has a dedicated protocol URI to restart a repository. If I am right and repositories need to be explicitly restarted, I think that there is nothing to do about this in the stock RDF4J server.

Best regards,

Manuel Fiorelli

[hmott...@gmail.com]

Maybe your usecase is better served by using the new transaction settings. That way you can disable validation on a single transaction, or force the transaction to use bulk validation (load all the data then revalidate the entire database). 

https://rdf4j.org/documentation/programming/shacl/#performance

Cheers,

Håvard

[Manuel Fiorelli]

Hi Håvard

thank you for the prompt reply.

My use case is to "simulate" the possibility to do a bulk validation of a repository. To this end, I setup the SHACL sail with validation disabled, and then I use the proper TransactionSetting to request the bulk validation and generate a validation report. Interestingly enough, requesting bulk validation works also for a repository for which validation has been disabled. As I am not interested in frequently switching validation on/off from transaction to transaction, I preferred to disable validation altogether when I don't need it.

Best regards

Manuel

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Manuel Fiorelli

[Håvard Ottestad]

Hi Manuel,

I’m not sure if I understand what you mean by simulating the possibility to do bulk validation. 

One thing to keep in mind is that the transactional validation assumes that the repository is in a valid state. So if you turn on validation again make sure to run a transaction with the bulk validation transaction setting. 

What is the reason you don’t want to keep validation enabled all the time?

Håvard

On 8 Jun 2021, at 00:10, Manuel Fiorelli <manuel....@gmail.com> wrote:



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