Hi Andreas - which version are you running?
It does not look like the corruption problem, which is now fixed.
The best thing to do is reload the database again. Whatever terms were
messed up are permanently damaged I'm afraid.
Andy
On 07/03/2019 10:49, Walker, Andreas wrote:
Dear all,
as a quick follow-up which might be helpful in identifying the error; I can
currently run a SPARQL query (just listing any triples) with LIMIT 80, but no
higher, before I run into the error, so it seems like there might indeed be a
particular part of the database that is corrupted.
Best,
Andreas
________________________________
Von: Walker, Andreas <[email protected]>
Gesendet: Mittwoch, 6. März 2019 10:42:32
An: [email protected]
Betreff: Error 500: No conversion to a Node: <RDF_Term >
Dear all,
from time to time, my Fuseki server starts throwing the following error message
on any SPARQL query I pose to one of my graphs:
"Error 500: No conversion to a Node: <RDF_Term >"
Unfortunately, I couldn't find any explanation of this error message, beyond a
discussion of a corrupted TDB2 database.
(https://users.jena.apache.narkive.com/LF4XE801/corrupted-tdb2-database)<https://users.jena.apache.narkive.com/LF4XE801/corrupted-tdb2-database>
Once this happens, the only thing I could do so far is to drop the entire
afflicted graph and rebuild it, but of course that isn't going to be a viable
solution in the long term.
The only way I interact with Fuseki is by starting and stopping it, querying it
via the SPARQL endpoint (and sometimes through the web interface, e.g. when
troubleshooting my application), and uploading new triples (as turtle files)
via the web interface. I haven't been able to find a pattern in when the error
appears so far.
Any insights into why this error appears, and what to do in order to avoid it?
I'd appreciate any help.
Best,
Andreas
