Editing the template adds 1? Job to the queue that then updates everything.
If needed you can run/schedule runjobs.php in the maintenance folder. I
know smaller wikis sometimes have issues with the jobs not getting executed
fast enough

On Sunday, May 24, 2015, Huji Lee <[email protected]> wrote:

> Great answers.
>
> Here is a follow up question though: I edited a template used in thousands
> of pages, yet the Job Queue for that wiki did NOT increase by a factor of
> thousand. It simply increased from around 10 to around 30. And since then
> (several days ago), the associated page links are not updated. I understand
> that Job Queue is not easy to comprehend, but can you shed a light as to
> why the job queue only grow that much, and why the links haven't been
> updated since? (Note that job queue very quickly shrank to 10 or so again).
>
> On Sun, May 24, 2015 at 8:47 AM, John <[email protected]
> <javascript:;>> wrote:
>
> > When editing a template the resulting link updates go thru the Job Queue
> > https://www.mediawiki.org/wiki/Manual:Job_queue which has a lot of
> > variables which determine the speed that jobs get executed.
> >
> > When you perform a null edit the page is reparsed, resulting in updates
> to
> > the link related tables (iwlink, external_links, page_links ect) which is
> > what the whatlinks here results. Normally the job queue forces a reparse
> as
> > needed.
> >
> > a standard purge does not update the table, however a forcelinkupdate
> added
> > to the purge URL will achieve the same thing see
> > https://www.mediawiki.org/wiki/Manual:Parameters_to_index.php#Actions
> >
> > As for job queue numbers, dont try and understand it, its a confusing
> mess.
> > A single job might affect many pages, might or might not spawn more jobs
> > and several other variable actions
> >
> > On Sun, May 24, 2015 at 8:35 AM, Huji Lee <[email protected]
> <javascript:;>> wrote:
> >
> > > I have a number of related questions regarding MediaWiki's caching
> > > mechanism. I would be grateful if one could answer these please. The
> > > assumption here is that a wiki is configured using the exact same
> caching
> > > methods that Wikimedia uses.
> > >
> > > Please feel free to provide links to https://www.mediawiki.org as well
> > as
> > > https://noc.wikimedia.org when specifying configuration variables in
> > your
> > > answers as I am sure this would benefit future readers of this thread
> as
> > > well.
> > >
> > > Q1: Page [[foo]] contains template {{bar}}. I edit that template, but
> the
> > > page is not immediately updated. If I don't manually purge the cache of
> > > that page, how long would it take for the page cache to be updated?
> Which
> > > variable sets that time? And what is the value of that variable
> currently
> > > at Wikimedia wikis?
> > >
> > > Q2: Page [[foo]] contains template {{bar}}, and that template provides
> a
> > > link to page [[norf]]. I edit the template such that it instead links
> to
> > > page [[qux]]. However, when I go to Special:WhatLinksHere/norf I still
> > see
> > > [[foo]] listed. Even if I try ?action=purge on [[foo]], that behavior
> > > doesn't change. The only way to change it is either to edit [[foo]] and
> > > change its content, or to simply go to the edit page of [[foo]] and
> save
> > > without changes.
> > >
> > > Q2.A: If I don't do that null edit, how long would it take for the page
> > > cache to be updated? Which variable sets that time? And what is the
> value
> > > of that variable currently at Wikimedia wikis?
> > >
> > > Q2.B: Why is it that ?action=purge doesn't update the pagelinks table?
> > >
> > > Q2.C: Why is it that saving a page without any edits triggers any
> update
> > > mechanism? (I would assume it'd be less costly overall to say "if diff
> is
> > > null, don't do anything at all"; this question is more philosophical:
> why
> > > would we not like the quoted behavior?
> > >
> > > Q2.D: Does the Special:WhatLinksHere results come from a cache? In
> other
> > > words, if I query the database directly right after I change the
> template
> > > (as mentioned in Q2) but before I do any null edits, would it still
> show
> > > the old page link from [[foo]] to [[norf]]? Or would it show the
> correct
> > > link from [[foo]] to [[qux]] while Special:WhatLinksHere is still
> showing
> > > the old link?
> > >
> > > Q2.E: Is it possible to induce the same "resolution" through API? That
> > is,
> > > is it possible to try to save a page without any changes to its content
> > via
> > > API, and thereby forcefully update the page links entries for that
> page?
> > >
> > > Q3: Assume that 100 pages contain template {{bar}}, and that template
> > > provides a link to page [[norf]]. I edit the template such that it
> > instead
> > > links to page [[qux]]. Would that add any jobs to the job queue? If
> yes,
> > > how many? Should I expect 100 new jobs to be added, because 100 page
> > > cache's need updating?
> > >
> > > Thanks in advance,
> > >
> > > Huji
> > > _______________________________________________
> > > MediaWiki-l mailing list
> > > To unsubscribe, go to:
> > > https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
> > >
> > _______________________________________________
> > MediaWiki-l mailing list
> > To unsubscribe, go to:
> > https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
> >
> _______________________________________________
> MediaWiki-l mailing list
> To unsubscribe, go to:
> https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
>
_______________________________________________
MediaWiki-l mailing list
To unsubscribe, go to:
https://lists.wikimedia.org/mailman/listinfo/mediawiki-l

Reply via email to