[Engineering] 1.27.0-wmf.23 rolled back from Wikipedias

Mon May 9 17:04:51 UTC 2016

Le 09/05/2016 15:17, Gilles Dubuc a écrit :
> Investigation and likely explanation on
> https://phabricator.wikimedia.org/T134553
> 
> tl;dr: the source of the spike seems to be in the instrumentation and
> the newer higher values should be closer to reality.
> 
> It is safe to roll out 1.27-wmf.23 ASAP. Releng, please let me know when
> that will be, so that I can keep an eye on things to confirm my findings.
> 
> Sorry about the inconvenience!

It is better safe than sorry :-}

I am very happy we detect performance regression and end up rollbacking
a deployment because of that.  That is an indication we have largely
improved over the last few years.

-- 
Antoine "hashar" Musso