No, there isn't any prioritization. Updates are guaranteed as they stay in the update queue if they could not be written, but both read and writes are impacted by resource saturation.
On Mon, 17 Jun 2019, 15:35 Gerard Meijssen, gerard.meijssen@gmail.com wrote:
Hoi, Does this mean that the retrieval of data has priority over updates ? Thanks, GerardM On Mon, 17 Jun 2019 at 14:52, Guillaume Lederrey glederrey@wikimedia.org wrote:
Hello all!
We now have an incident report [1] describing in more detail this overload of Wikidata Query Service. The ban of python-request is still in effect and will remain so until we have a throttling solution in place for generic user agents.
Thanks all for your patience!
Guillaume
[1] https://wikitech.wikimedia.org/wiki/Incident_documentation/20190613-wdqs
On Thu, Jun 13, 2019 at 7:52 PM Guillaume Lederrey glederrey@wikimedia.org wrote:
Hello all!
We are currently dealing with a bot overloading the Wikidata Query Service. This bot does not look actively malicious, but does create enough load to disrupt the service. As a stop gap measure, we had to deny access to all bots using python-request user agent.
As a reminder, any bot should use a user agent that allows to identify it [1]. If you have trouble accessing WDQS, please check that you are following those guidelines.
More information and a proper incident report will be communicated as soon as we are on top of things again.
Thanks for your understanding!
Guillaume
[1] https://meta.wikimedia.org/wiki/User-Agent_policy
-- Guillaume Lederrey Engineering Manager, Search Platform Wikimedia Foundation UTC+2 / CEST
-- Guillaume Lederrey Engineering Manager, Search Platform Wikimedia Foundation UTC+2 / CEST
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