tl;dr: Backport windows will shift earlier in the (UTC) day starting on Mon, Feb 14th.
*Problem* Some backport windows have few deployers, and windows are not evenly distributed for global users—the window times slant US-centric.
*Solution* tl;dr: we made a spreadsheet https://docs.google.com/spreadsheets/d/1-bMfSzzzNxaOswFgqxkGVhfBnTenYL0Rw8XW-bHmolQ/edit?pli=1#gid=690147374 (Antoine did, actually).
After discussing with backport and train deployers, we're shifting backport window timeslots to:
1. Evenly distribute backport windows – the IST timezone had no good time to deploy 2. Provide better deployer coverage – the late afternoon backport window (which previously happened at 4pm Pacific) often had few deployers (and few users)
Here's a schedule that will be live *Mon, Feb 14th *(my Valentine's day present to you all)
- 08:00 UTC 🔙 Early Backport - 14:00 UTC 🔙 Afternoon Backport - 21:00 UTC 🔙 Evening Backport
Train
- 09:00 UTC 🚂 UTC-0 (Antoine) Train - 19:00 UTC 🚂 UTC-7 (US) Train
Big(ish) Changes
- UTC-7 train is an hour earlier - Swapped with the backport window so backport is now after train - UTC-Early backport is much earlier - UTC-Late backport is pretty early, too
<3 Tyler Cipriani (he/him) Engineering Manager, Release Engineering Wikimedia Foundation
Are they still pinned to Pacific time for DST, or will they stay in UTC?
AntiCompositeNumber
On Mon, Jan 31, 2022 at 7:32 PM Tyler Cipriani tcipriani@wikimedia.org wrote:
tl;dr: Backport windows will shift earlier in the (UTC) day starting on Mon, Feb 14th.
Problem Some backport windows have few deployers, and windows are not evenly distributed for global users—the window times slant US-centric.
Solution tl;dr: we made a spreadsheet (Antoine did, actually).
After discussing with backport and train deployers, we're shifting backport window timeslots to:
Evenly distribute backport windows – the IST timezone had no good time to deploy Provide better deployer coverage – the late afternoon backport window (which previously happened at 4pm Pacific) often had few deployers (and few users)
Here's a schedule that will be live Mon, Feb 14th (my Valentine's day present to you all)
08:00 UTC 🔙 Early Backport 14:00 UTC 🔙 Afternoon Backport 21:00 UTC 🔙 Evening Backport
Train
09:00 UTC 🚂 UTC-0 (Antoine) Train 19:00 UTC 🚂 UTC-7 (US) Train
Big(ish) Changes
UTC-7 train is an hour earlier
Swapped with the backport window so backport is now after train
UTC-Early backport is much earlier UTC-Late backport is pretty early, too
<3 Tyler Cipriani (he/him) Engineering Manager, Release Engineering Wikimedia Foundation _______________________________________________ Wikitech-l mailing list -- wikitech-l@lists.wikimedia.org To unsubscribe send an email to wikitech-l-leave@lists.wikimedia.org https://lists.wikimedia.org/postorius/lists/wikitech-l.lists.wikimedia.org/
On Mon, Jan 31, 2022 at 5:36 PM AntiCompositeNumber < anticompositenumber@gmail.com> wrote:
Are they still pinned to Pacific time for DST, or will they stay in UTC?
Everything is still anchored to Pacific Time, so currently PST on the spreadsheet will remain correct year round. The times will spring forward and fall back with America/Los_Angeles.
Initially, I tried anchoring the calendar to UTC. Then when DST happened (for most of the world) folks noted their deployment windows were suddenly an hour earlier than they expected :)
Timezones, – Tyler
On Mon, Jan 31, 2022 at 7:32 PM Tyler Cipriani tcipriani@wikimedia.org
wrote:
tl;dr: Backport windows will shift earlier in the (UTC) day starting on
Mon, Feb 14th.
Problem Some backport windows have few deployers, and windows are not evenly
distributed for global users—the window times slant US-centric.
Solution tl;dr: we made a spreadsheet (Antoine did, actually).
After discussing with backport and train deployers, we're shifting
backport window timeslots to:
Evenly distribute backport windows – the IST timezone had no good time
to deploy
Provide better deployer coverage – the late afternoon backport window
(which previously happened at 4pm Pacific) often had few deployers (and few users)
Here's a schedule that will be live Mon, Feb 14th (my Valentine's day
present to you all)
08:00 UTC 🔙 Early Backport 14:00 UTC 🔙 Afternoon Backport 21:00 UTC 🔙 Evening Backport
Train
09:00 UTC 🚂 UTC-0 (Antoine) Train 19:00 UTC 🚂 UTC-7 (US) Train
Big(ish) Changes
UTC-7 train is an hour earlier
Swapped with the backport window so backport is now after train
UTC-Early backport is much earlier UTC-Late backport is pretty early, too
<3 Tyler Cipriani (he/him) Engineering Manager, Release Engineering Wikimedia Foundation _______________________________________________ Wikitech-l mailing list -- wikitech-l@lists.wikimedia.org To unsubscribe send an email to wikitech-l-leave@lists.wikimedia.org
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