Hello!

You might be hitting our throttling limits [1]. But that throttling should result in an HTTP 429 (too many requests) and not in a ECONNRESET. So there is something fishy here. I assume that your application is following our usual policies [2] and that you are using a custom user agent string to identify it. If that's the case, can you tell us what UA you're using, and I can have a look into the logs.

Thanks!

Guillaume

[1] https://www.mediawiki.org/wiki/Wikidata_Query_Service/Implementation#Usage_c... [2] https://wikitech.wikimedia.org/wiki/Robot_policy#User_agent

On Fri, Feb 22, 2019 at 9:57 AM Matthew Moy de Vitry matthew.mdv@gmail.com wrote:

Hello everyone, I am developing an application that requires many SPARQL queries to the wikidata server (1k-2k each time I test it). The application front-end is visible here: https://beta.water-fountains.org

I am just making SPARQL queries from a nodeJS server to get information about fountains. This has been working fine for about a year, until yesterday, when the connection started returning ECONNRESET or "Socket hang up". If I run the query from the browser instead of the server it works fine, and if I use a vpn, the NodeJS server is able perform the queries without issue. Here is an example query: link

Has anyone else had such an issue? Thanks! Matthew _______________________________________________ Wikidata mailing list Wikidata@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/wikidata