While in TDB2, read-transactions never write, there is a case where a
read-only setup needs to do writes.
It happens only at start-up and only the first time after the database
is written during setup.
If there is a journal file with outstanding changes, these are completed
before the
> On Sep 18, 2023, at 11:09 AM, Andy Seaborne wrote:
>
>
>
> On 18/09/2023 15:35, Jim Balhoff wrote:
>> Thanks, I think that’s basically what I’ve got. The only operation I have
>> enabled is 'fuseki:query’. But Fuseki still complains if the filesystem is
>> read-only.
>
> The database is
On 18/09/2023 15:35, Jim Balhoff wrote:
Thanks, I think that’s basically what I’ve got. The only operation I have
enabled is 'fuseki:query’. But Fuseki still complains if the filesystem is
read-only.
The database is opened before the configuration is processed.
Also, there is only one
Thanks, I think that’s basically what I’ve got. The only operation I have
enabled is 'fuseki:query’. But Fuseki still complains if the filesystem is
read-only.
> On Sep 18, 2023, at 10:03 AM, Martynas Jusevičius
> wrote:
>
> This looks like the configuration that you need:
>
This looks like the configuration that you need:
https://jena.apache.org/documentation/fuseki2/fuseki-configuration.html#read-only-service
On Mon, Sep 18, 2023 at 2:43 PM Jim Balhoff wrote:
>
> Hi,
>
> Is it possible to run a Fuseki server using a read-only TDB2 directory? I’d
> like to run a
The TDB2 database is open for general use (i.e. write).
You can get read-only by restricting the operations on the dataset to
only query and the read functions of the Graph Store Protocol.
Being SPARQL, query operations and write (update) operations are
separate by syntax and there are
I think it depends more on query than with the back end, but don't have
detailed comparisons. Perhaps others do.
On Mon, 18 Sept 2023, 14:43 Jim Balhoff, wrote:
> Thanks, maybe that would be a good fit. Do you know how query performance
> compares running over HDT compared to TDB2? Or is that
Thanks, maybe that would be a good fit. Do you know how query performance
compares running over HDT compared to TDB2? Or is that question is too
dependent on the particular queries to answer?
> On Sep 18, 2023, at 8:51 AM, Pedro
> wrote:
>
> Jim
> Perhaps
Jim
Perhaps https://www.rdfhdt.org/manual-of-hdt-integration-with-jena/ will
suit your need.
Cheers
Peter
On Mon, 18 Sept 2023, 13:43 Jim Balhoff, wrote:
> Hi,
>
> Is it possible to run a Fuseki server using a read-only TDB2 directory?
> I’d like to run a query-only SPARQL endpoint, no updates.
Hi,
Is it possible to run a Fuseki server using a read-only TDB2 directory? I’d
like to run a query-only SPARQL endpoint, no updates. However I get an
exception at startup if the filesystem is read-only. Does Fuseki need to
acquire the lock even if updates are turned off?
Thank you,
Jim
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