[Engineering] SWAT deploy slot time changes (and adding European mid-day slot)

Greg Grossmeier greg at wikimedia.org
Tue Aug 9 18:00:05 UTC 2016

tl;dr: Starting the week of August 22nd there will be 3 SWAT deploy
windows: at 13:00, 18:00, and 23:00 UTC (6am, 11am, 4pm PDT).

Hello all,

I'm pleased to announce that after being heavily SF-focused for a long
time we're adding a Europe-focused (and slightly better for Asia/India)
SWAT window[0] starting on August 22nd[1].

This new SWAT window follows a couple changes to the SWAT process[2] and
scap tooling[3] which make SWAT deploys less risky and stressful for all

We hope this additional window will make the lives of all teams and
volunteers (at least slightly) better.

Greg and the Release Engineering Team

[0] https://wikitech.wikimedia.org/wiki/SWAT_deploys
[1] https://wikitech.wikimedia.org/wiki/Deployments#Week_of_August_22nd
[2] Utilizing mw1099/X-Wikimedia-Debug headers, see:
[3] Canary error rate checks built-in, see:

| Greg Grossmeier            GPG: B2FA 27B1 F7EB D327 6B8E |
| identi.ca: @greg                A18D 1138 8E47 FAC8 1C7D |
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