On Wed, Jan 4, 2017 at 1:21 PM, Addshore <[email protected]> wrote:

> The query listed selecting from wikidatawiki.wb_terms was me /
> wmde-analytics and runs daily.
>
> I agree that some sort of query limits would make sense.
> What limits are currently in place?
>

The wikidata queries I have seen are probably the most concerning, they are
full scan+very large sorts of the wb_terms table > 700 times a day (which
means server query pileups), each one time taking over 2 hour (the former
query limit), on what I assume is an append-mostly table. With a few easy
tweaks (some triggers or a query rewrite), the same data could be obtained
instantly instead of taking so many resources.

Please ask for a hand (you can do it privately)- it is actually faster and
easier, and I am here to help, and you will actually make my life easier if
servers continue being up :-).

I will talk about this at the Wikimedia developers conference
https://phabricator.wikimedia.org/T149624 , a session I am inviting you all
you to go to if you are attending the conference. I will talk about the new
analytics labsdb service (with new servers!) and provide some feedback that
applies to the analytics boxes, too.
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