On Sat, Sep 6, 2014 at 2:25 AM, Ori Livneh <ori@wikimedia.org> wrote:
In November of last year, Aaron noticed a spike in memcached traffic, which we were eventually able to attribute to Wikibase client fetching the SiteList on every request. When Katie fixed it, outbound memcached traffic nearly halved.

We're now back to the same rate of outbound traffic as then, and the culprit appears to be the same key.

See: http://i.imgur.com/v9ebld6.png



I can see two reasons for this:

1) the "other projects" sidebar beta feature, which we have realized needs improvement in how / where things are cached.

https://gerrit.wikimedia.org/r/#/c/157500/ - plan to backport on Monday

https://gerrit.wikimedia.org/r/#/c/158381/ - perhaps can wait (?) until next regular scheduled deployment of wikibase, not this week but following week

2) the way badges are handled in the sidebar.  This doesn't look like as simple of a fix but looking at options for this and sure we can find a solution. 

Cheers,
Katie
 

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Katie Filbert
Wikidata Developer

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