maillpierre / lodservatory

SPARQL Endpoint Service Monitoring

Linked Open Data and SPARQL Endpoints Observatory

This repo provides automated service monitoring of SPARQL Endpoints on an hourly basis. The results are published in the file latest-status.ttl. Many Linked Data clients can consume the data directly from

https://raw.githubusercontent.com/MaillPierre/lodservatory/master/latest-status.ttl

How Does It Work

There is this git action which invokes the following process every hour.

The script update-status.sh first downloads the catalog of endpoints from the IndeGx framework, and then runs the SPARQL query in status-check.sparql on each endpoint URL.

The workflow runner is our sparql-integrate command line tool, built on Apache Jena, which simplifies the process of mashing-up RDF datasets and SPARQL queries.

Is Service Monitoring using GitActions Permitted?

According to this answer to my question: Yes

How To Contribute...

... New Endpoints?

This project uses OpenLink's SPARQL endpoint dataset and the catalog of endpoints from the IndeGx framework as the source, please make pull requests to their respective repositories.

... Additional Service Information?

As github has API limits (1000 requests per hour) it may be better to make separate projects for other kind of information, such as void descriptions. Note, that one can use this service status dataset as the basis in order to not waste requests!

Feel free to contribute your ideas on the issue tracker.

How Can I Monitor My Own Endpoints?

Just clone the repo and use a different dataset of endpoints as the source.

Licence

The source code of this repo is published under the Apache License Version 2.0.