662208 - Users most often get complete updates for nightly/aurora ?

Status: RESOLVED DUPLICATE of bug 575317

(Toolkit :: Application Update, defect)

Description

[Nick Thomas [:nthomas] (UTC+12)]

Spun out from discussion on bug 504624:

(In bug 504624 comment #5, Vic said)
> In Aurora Channel, when I click "About Firefox", every day it pushes the
> whole 17 MB update. Or maybe once every 2 days. I am sure there are not that
> many fixes landed, but I have to download the whole 17 MB every 1-2 days.

(In bug 504624 comment #7, Christian Legneato said)
> 1. We only do binary deltas to the last release. With Aurora building daily,
> if you miss one you will likely get the full update. So, unless you use
> Aurora and install an update every day you'll get the full. And (I haven't
> checked this) there is likely the potential that the update check + install
> nag timers are skewed in just the right way with the build times so some
> people always are > 1 release behind and always get the full.
> 
> We are tracking building patch packages for more than the last release in
> bug 575317.

Re the Vic's comment: we only produce nightly builds once a day, regardless of if there have been changes or not. Users on the previous nightly get offered a partial & complete, older builds just a complete.

Re Christians comment, we query AUS on the same interval for both nightly and aurora, some 8 hours, which is 3 times more frequent than beta & release (see browser/branding/nightly/pref/firefox-branding.js, and replace nightly with aurora or official). We also download background updates (up to) 10 times faster (app.update.download.backgroundInterval). But I don't think we prompt on different intervals for different channels, based on http://mxr.mozilla.org/mozilla-central/source/browser/app/profile/firefox.js#169. Rob Strong knows exactly how those preferences are used and what the user sees.

Comment 1

[Nick Thomas [:nthomas] (UTC+12)]

Looking at Vic's update.xml would probably be useful, but I've lost track of where that lives on WinXP. Rob ?

Comment 2

[:Gavin Sharp [email: [e-mail]]]

Given the "or maybe once every 2 days", I suspect this may just be a case of Vic not checking frequently enough.

Comment 3

[Robert Strong (they/them - no direct email)]

Everything in comment #0 is correct. We notify via the "toast" after the download completes and prompt 12 hours after that with the update ui (this is being tuned to be a longer period of time
https://wiki.mozilla.org/Firefox/Features/Lessen_App_Update_Displayed_UI)

I suspect that this is due to the user being more than one update behind as has been the case with previous bug reports regarding this. If this is the case then this will need to be fixed on the releng side.

Comment 4

[Dão Gottwald [:dao]]

So, should we tune those prefs for nightly and aurora to get users to update earlier? Otherwise this is just a duplicate of bug 575317.

Comment 5

[Robert Strong (they/them - no direct email)]

I don't think we need to further tune the prefs