Ok, got it. Is there anyway to get a sense of how fast/slow jobs are being executed on a wiki? For instance, on English Wikipedia, I can see how many jobs are in the query using the API, but can I get a sense of the average time it gets for a job to run?
On Sun, May 24, 2015 at 9:22 AM, John <[email protected]> wrote: > 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 > _______________________________________________ MediaWiki-l mailing list To unsubscribe, go to: https://lists.wikimedia.org/mailman/listinfo/mediawiki-l
