I agree and think that at least a mailing post here and on wikidata-tech
would've been great to make sure everyone has the chance to know what's
going on
Well, we only noticed what was up due to this email!
Take a look at https://phabricator.wikimedia.org/T119915

So you can always get an overall view of the query service at https://grafana.wikimedia.org/dashboard/db/wikidata-query-service
Key here for your issue would be the lag graph in the middle right.
This is generated using the following query:
    SELECT * WHERE { <http://www.wikidata.org> schema:dateModified ?y }
Which gives you the last modified date for the data stored!

Addshore

On 3 February 2016 at 21:44, Andra Waagmeester <andra@micelio.be> wrote:
Nice that the SPARQL service is upgraded. We noticed something was going on and terminated our bots to wait for more stability. 

1. Is that stability now reached?
2. Is there some sort of flag-mechanism, that would indicate if the SPARQL endpoint is stable, being upgraded or had change in state?

The SPARQL endpoint is core to our efforts in genewiki's ProteinBoxBot, for a spectrum of reasons. (e.g. concept resolution, identifying data inconsistencies (an item on a gene and protein being incorrectly merged), getting precision and recall numbers on included data sources, etc) Whenever there is an issue, we usually take a step back and retry later. However, this is based on trial and error. It would be quite convenient if we could use a flag-mechanism to decide if we can start or if already started we need to terminate.

Can we do this? Advise on different approaches would be also appreciated.

Regards, 


Andra Waagmeester 

On Wed, Feb 3, 2016 at 7:53 PM, Stas Malyshev <smalyshev@wikimedia.org> wrote:
Hi!

> is it me or is the SPARQL service very slow right now?

I've upgraded it yesterday to Blazegraph 2.0 and it looks like there was
some glitch there. I've restarted it and now it seems to be fine. I'll
be watching it and see if it repeats.

--
Stas Malyshev
smalyshev@wikimedia.org

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