https://bugzilla.wikimedia.org/show_bug.cgi?id=42452
--- Comment #23 from Ryan Kaldari <[email protected]> --- Reported on German Wikipedia as well: https://de.wikipedia.org/wiki/Wikipedia:Fragen_zur_Wikipedia#Navigationsmen.C3.BC Just to summarize the situation... This bug consists of 3 different potential problems, 2 of which have been successfully resolved: 1. Users getting updated CSS, but cached HTML - fixed with https://gerrit.wikimedia.org/r/#/c/35817/ and https://gerrit.wikimedia.org/r/#/c/35819 2. Users getting updated HTML, but outdated client-side-cached CSS ("5 minutes of doom") - fixed by deploying CSS a day before the HTML changes. (Our CSS files are supposed to expire after 5 minutes at the most on the client-side.) 3. Users getting updated HTML, but outdated server-side-cached CSS (that is over 5 minutes old). This is the one we haven't solved. The problem is difficult to reproduce reliably, and seems to fade away on its own. Users who experience this problem state that they are logged in, have cleared their browser cache, and purged the pages. The problem has been reported across a wide range of browsers and from users in both the US and Europe. If we accept these reports as accurate, the only explanation I can come up with is that some WMF servers are holding onto old caches of CSS and JS pages after they have been updated and synced from fenari. (Anecdotal reports from mobile and fundraising developers lead me to believe that this affects JS as well as CSS.) Although the current incarnation of this problem was merely cosmetic, it has the potential to cause major site breakage. We may want to have someone from Ops investigate further if possible. -- You are receiving this mail because: You are the assignee for the bug. You are watching all bug changes. _______________________________________________ Wikibugs-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/wikibugs-l
