Hi Folks,
On behalf of the WMF, I wanted to share more information about what has
happened and what our plan is moving forward. We were actually discussing
how to communicate this when the thread popped up, and I apologize for not
sending something out sooner.
Basically, the load on our maps servers increased to the point where the
service was falling down. We had an incident in February where this
happened and while the root cause is not well understood yet, it was clear
that the issue is systemic and this was not a 1-time event. Details are here
<https://wikitech.wikimedia.org/wiki/Incident_documentation/20200204-maps>.
A big part of our map traffic (~35% is from 3rd parties) and by limiting
support for third parties, we were able to mitigate the issue.
The immediate change we made was to drop cache misses from 3rd parties, but
to keep serving the tiles that are in cache. This lessens our loads without
turning 3rd party support off entirely, but is understandably confusing to
the few 3rd parties who are using our service. In terms of long term
support, we do not have any plans to increase it and are actively
discussing how we might further limit 3rd party support in the future.
We're doing this proactively so that we can provide appropriate warning,
details and dates for any further decreases in service that might be coming
down the pike.
As always your feedback is very welcome. What do you think? What are your
primary questions, etc. We may not be able to respond right away as finding
answers can sometimes require communication across many time zones, but
that doesn't mean we're not listening and taking it in.
Thanks,
Jon
Director of Product Management, Wikimedia Foundation
On Sun, Mar 1, 2020 at 7:23 AM AntiCompositeNumber <
anticompositenumber(a)gmail.com> wrote:
The current restriction is still a temporary
mitigation for an outage.
Draft information about the outage is available at
<https://wikitech.wikimedia.org/wiki/Incident_documentation/20200204-maps
.
The Wikimedia Foundation has not yet made
a policy decision about
external access to the maps service. You should expect a public
announcement when that decision is made; if it's not sent to this list
I'll forward it across.
On Sun, Mar 1, 2020 at 7:47 AM Gandalf Corvotempesta
<gandalf.corvotempesta(a)gmail.com> wrote:
A whitelist is possibile?
We use cloudflare with a forced 1 year cache but our application still
use
Wikimedia maps as tile server
We talked about this 1 year ago and It was ok for you, if your policy is
changed
with no warning, it's a huge issue for us as we have to refactor a
lot of things.....
Il dom 1 mar 2020, 12:57 Albin Larsson <albin.post(a)gmail.com> ha
scritto:
>
> Hi,
>
> It's worth mentioning that WMFs Kartotherian instance now should deny
all
non-cached tile requests from third-party domains. Tiles cached in
Varnish should however return as normal.
https://gerrit.wikimedia.org/r/plugins/gitiles/operations/puppet/+/de877764…
>
> //
> Albin
>
> Den lör 29 feb. 2020 kl 23:24 skrev Federico Leva (Nemo) <
nemowiki(a)gmail.com>gt;:
Maarten Dammers, 29/02/20 22:12:
> Late reply. Prado has been using the Wikimedia maps for years, see
>
https://www.museodelprado.es/ .
Thanks! I had missed that (I rarely scroll that far). Funny.
Their website seems to have less traffic but the map is on the front
page. I'll definitely mention it next time I need an example. :-)
Federico
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