Review & Removal of Wikidata query service Blazegraph JNL on Cloudflare R2
Back in August, I uploaded a new Wikidata query service Blazegraph JNL file to both Cloudflare and the Internet Archive. 4 months on, it is time for me to remove the R2 version of this file, which is costing me around 18 USD per month to store, and fall back to the Internet Archive version…
COVID-19 Wikipedia pageview spikes, 2019-2022
Back in 2019 at the start of the COVID-19 outbreak, Wikipedia saw large spikes in page views on COVID-19 related topics while people here hunting for information. I briefly looked at some of the spikes in March 2020 using the easy-to-use pageview tool for Wikimedia sites. But the problem with viewing the spikes through this…
Wikidata query service Blazegraph JNL file on Cloudflare R2 and Internet Archive
At the end of 2022, I published a Blazegraph JNL file for Wikidata in a Google Cloud bucket for 1 month for folks to download and determine if it was useful. Thanks to Arno from weblyzard, inflatador from the WMF search platform team, and Mark from the Internet Archive for the recent conversations around this…
A first Wikidata query service JNL file for public use
Back in 2019 I wrote a blog post called Your own Wikidata Query Service, with no limits which documented loading a Wikidata TTL dump into your own Blazegraph instance running within Google cloud, a near 2 week process. I ended that post speculating that part 2 might be using a “pre-generated Blazegraph journal file to…
Wikidata query service updater evolution
The Wikidata Query Service (WDQS) sits in front of Wikidata and provides access to query its data via a SPARQL API. The query service itself is built on top of Blazegraph, but in many regards is very similar to any other triple store that provides a SPARQL API. In the early days of the query…
Wikidata maxlag, via the ApiMaxLagInfo hook
Wikidata tinkers with the concept of maxlag that has existed in MediaWiki for some years in order to slow automated editing at times of lag in various systems. Here you will find a little introduction to MediaWiki maxlag, and the ways that Wikidata hooks into the value, altering it for its needs. As you can…