[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-09 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

--- Comment #8 from Lars Aronsson l...@aronsson.se 2011-03-09 19:40:30 UTC ---
I'm always logged in and it happens to me. Several times today (March 9).

The following might be related: When I added a reply to a thread in Liquid
Threads on en.wiktionary, the page (Special:Newmessages) was immediately
updated, but a few seconds later a notice appeared that this thread has new
messages, click here to update, but of course my own reply was the only news.
I have not seen that behaviour in Liquid Threads before version 1.17.

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-09 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

Tim Starling tstarl...@wikimedia.org changed:

   What|Removed |Added

 CC||tstarl...@wikimedia.org

--- Comment #9 from Tim Starling tstarl...@wikimedia.org 2011-03-10 01:09:05 
UTC ---
The page view immediately after edit submission should always be a squid cache
miss, because a session cookie should be sent when you view the edit page,
which suppresses caching. It doesn't matter if you're logged in or not.

In theory, page_latest should be loaded from the master, to prevent this bug
from happening. Loading page data from the master was introduced in r7615 for
this reason. It may have been broken as early as r12680, when the redirect
check in Wiki.php was modified to load page data from a slave.

If you load page data from a slave, then it seems like the only thing standing
in the way of this bug is the ChronologyProtector. That's surprising, because
it's been broken on several occasions since r12680. I would have expected it to
have been reported more often.

ChronologyProtector has a timeout of 10 seconds. If the timeout is reached, the
lagged slave will be used, and page_latest may be incorrect. Perhaps the
collation updates are causing slave lag of more than 10s but less than 30s,
causing this bug to be seen.

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-08 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

--- Comment #6 from Platonides platoni...@gmail.com 2011-03-08 12:42:21 UTC 
---
r83513 may have fixed it.

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-07 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

Lars Aronsson l...@aronsson.se changed:

   What|Removed |Added

 CC||l...@aronsson.se

--- Comment #3 from Lars Aronsson l...@aronsson.se 2011-03-07 13:55:04 UTC ---
After the 1.17 upgrade, this happens sporadically on all projects: English
Wiktionary, Swedish Wikipedia, ... It is very irritating to the frequent editor
and should have a high priority.

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-07 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

Roan Kattouw roan.katt...@gmail.com changed:

   What|Removed |Added

 CC||roan.katt...@gmail.com

--- Comment #4 from Roan Kattouw roan.katt...@gmail.com 2011-03-07 18:03:33 
UTC ---
(In reply to comment #3)
 After the 1.17 upgrade, this happens sporadically on all projects: English
 Wiktionary, Swedish Wikipedia, ... It is very irritating to the frequent 
 editor
 and should have a high priority.
Has it been observed on wikis that don't have FlaggedRevs?

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-07 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

--- Comment #5 from Lars Aronsson l...@aronsson.se 2011-03-07 18:18:49 UTC ---
I don't think en.wiktionary has FlaggedRevs. I have seen it happen several
times there, both when I create new articles and when I add my view to a
discussion. The stale version that is viewed after saving is either the
non-existing page or the discussion before my addition. I haven't created any
new articles on sv.wikipedia lately, but I have seen the same happen when I add
to a discussion, and I'm pretty sure sv.wikipedia doesn't use FlaggedRevs.

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-06 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

Platonides platoni...@gmail.com changed:

   What|Removed |Added

 CC||platoni...@gmail.com

--- Comment #1 from Platonides platoni...@gmail.com 2011-03-06 15:23:20 UTC 
---
Does it happen to all pages or just to a few? Even if the page has only latin
characters?

Once a page has been purged, do the next edit also need to be purged?

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-06 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

Mark A. Hershberger m...@everybody.org changed:

   What|Removed |Added

 CC||m...@everybody.org
 Blocks||27339

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[Bug 27891] Cache setting on Wikipedia Chinese

2011-03-06 Thread bugzilla-daemon
https://bugzilla.wikimedia.org/show_bug.cgi?id=27891

--- Comment #2 from Mark A. Hershberger m...@everybody.org 2011-03-06 
21:14:44 UTC ---
Roan says (via IRC) that this may be a flagged revs issue which is being
reported sporadically:

  hexmode: Also, some wikis have been reporting that users see a
  stale version of the page immediately after submitting an
  edit. I suspect FlaggedRevs involvement because it only happens
  on some wikis, but I forgot which ones. I think at least enwiki
  and zhwiki reported it

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