Dear list,
I am experiencing unexpected problems with running Queries on FactGrid. (You find some sample queries here: https://database.factgrid.de/wiki/FactGrid:Projects) The error code is:
Can anyone make more sense of the information and how to handle it?
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>502 Proxy Error</title> </head><body> <h1>Proxy Error</h1> <p>The proxy server received an invalid response from an upstream server.<br /> The proxy server could not handle the request <em><a href="/sparql">GET /sparql</a></em>.<p> Reason: <strong>Error reading from remote server</strong></p></p> <hr> <address>Apache/2.4.25 (Debian) Server at database.factgrid.de Port 443</address> </body></html>
If I have killed the application it was with an attempt to get given names with our (deprecated) string Property P88 - trying to get the names together with the respective P101 "place in sequence" qualifiers.
Please tell me that it is impossible to kill our SPARQL with flawed scripts for queries.
Cheers, Olaf
Dr. Olaf Simons Forschungszentrum Gotha der Universität Erfurt Schloss Friedenstein, Pagenhaus 99867 Gotha
Büro: +49-361-737-1722 Mobil: +49-179-5196880
Privat: Hauptmarkt 17b/ 99867 Gotha