Page MenuHomePhabricator

Items not showing up in category they have been added to
Closed, DuplicatePublic


Recently when categorizing items on Commons, sometimes items added to a category don't show up in that category. It seems to happen about 1% of the time. For example, has been added to Category:Taken with KDDI Sharp SH009, but when viewing that category the file isn't there (12 hours later). It could be fixed by null-editing the file, but I don't know any way to discover such files that require null editing, and it shouldn't be necessary.

Event Timeline

Ghouston raised the priority of this task from to Needs Triage.
Ghouston updated the task description. (Show Details)
Ghouston added a project: Commons.
Ghouston added a subscriber: Ghouston.
Bawolff added a subscriber: Bawolff.

My theory is that, its a race condition with slave lag. LinksUpdate::getAsJobSpecification() doesn't set masterPos flag, as a result, Revision::newFromTitle( $title, false, Revision::READ_NORMAL ); might get a stale page_latest field from the db, and refreshLinksJob will run on the old version of the page.

Being a race condition would fit with it only happening on a small percentage of pages.