Thanks Sjoerd. Some en-wiki users consider the delay as a (one more) argument that Wikidata is junk and should be thrown down the toilet, so I was curious whether the delay was handled as a part of the problem.
Cheers Yaroslav On Thu, Oct 19, 2017 at 12:09 PM, Sjoerd de Bruin <sjoerddebr...@me.com> wrote: > Hi Yaoslav, > > No, but there has been some dispatch issues in the last few days. The > current lag for enwiki is 3 hours, for example. You can see a graph of the > dispatch lag here: https://grafana.wikimedia.org/dashboard/db/ > wikidata-dispatch?refresh=1m&orgId=1&from=now-7d&to=now > > Greetings, > > Sjoerd de Bruin > sjoerddebr...@me.com > > Op 19 okt. 2017, om 11:30 heeft Yaroslav Blanter <ymb...@gmail.com> het > volgende geschreven: > > Thanks Guilaume, > > is this the same accident which caused an hour delay of Wikidata items on > Wikipedia watchlists? > > Cheers > Yaroslav > > On Thu, Oct 19, 2017 at 10:14 AM, Guillaume Lederrey < > gleder...@wikimedia.org> wrote: > >> Hello all! >> >> As you might have seen / endured, we've had a Wikdiata Query Service >> partial outage yesterday morning (central european time). The full >> incident report is available [1] if you are interested in the details. >> The short version: >> >> * a single client started to run an unusually high number of queries on >> WDQS >> * the overload was not prevented by our current throttling >> * the failure was not detected and isolated automatically >> >> To prevent this from happening again, we will review our throttling >> rules. Those rules were previously tuned to prevent a single client >> from overloading the service with a small number of expensive >> requests: we started to log a client activity only when the duration >> of a request exceeded 10 seconds. Which means that a client sending >> tons of short requests would never be throttled. >> >> We will correct that by lowering the threshold to probably 25ms. The >> throttling rules are still the same: >> >> * 60 seconds of processing time per minute (peaking at 120 seconds) >> * 30 errors per minute (peaking at 60) >> >> If you are using WDQS to make lots of small requests, and you are over >> the throttling rates above, there is a chance that you will start >> seeing throttling errors. We are not doing this to bother you, we're >> just trying to keep another crash from happening... >> >> If you are throttled, you will receive an HTTP 429 error code. This >> response include the "Retry-After" HTTP header which specify a number >> of seconds you should wait before retrying. >> >> Thanks for your patience! >> >> And contact me if you want any clarification. >> >> Guillaume >> >> [1] https://wikitech.wikimedia.org/wiki/Incident_documentation/ >> 20171018-wdqs >> [2] https://en.wikipedia.org/wiki/List_of_HTTP_status_codes#429 >> >> -- >> Guillaume Lederrey >> Operations Engineer, Discovery >> Wikimedia Foundation >> UTC+2 / CEST >> >> _______________________________________________ >> Wikidata mailing list >> Wikidata@lists.wikimedia.org >> https://lists.wikimedia.org/mailman/listinfo/wikidata >> > > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata > > > > _______________________________________________ > Wikidata mailing list > Wikidata@lists.wikimedia.org > https://lists.wikimedia.org/mailman/listinfo/wikidata > >
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