negative number of pages in a category?
Closed, ResolvedPublicBUG REPORT
Actions

Assigned To

Authored By

	Herzi.Pinki
	Sep 1 2024, 10:00 PM

Description

see https://commons.wikimedia.org/wiki/Category:Files_with_coordinates_missing_SDC_location_of_creation

there are some subcategories listed with a negative number of pages: e.g.
Files with coordinates missing SDC location of creation (49° N, 11° E)‎ (-287 S, 60932 D)
Files with coordinates missing SDC location of creation (48° N, 7° E)‎ (-11 S, 81645 D)
(might be transient and I'm not eager enough to make a screenshot)

afaik, there is no such thing as negative number of pages.

and even with positive number of pages,
Files with coordinates missing SDC location of creation (51° N, 1° W)‎ (4 S, 137090 D)
the subcat does not show any pages.

@Multichill , can you please assign a proper tag

Details

	Subject	Repo	Branch	Lines +/-
	Category: Fix mistake when adjusting negative page counts	mediawiki/core	master	+13 -5
	Category: Refresh counts for negative page count	mediawiki/core	master	+9 -6

Customize query in gerrit

Related Objects

Mentioned Here: T373722: module changes sometimes do not invalidate cache

Event Timeline

Herzi.Pinki created this task.Sep 1 2024, 10:00 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 1 2024, 10:00 PM

Herzi.Pinki updated the task description. (Show Details)Sep 1 2024, 10:06 PM

maybe a bug in recountCategories.php, which runs once every month (at 1st day 4:00).

Pppery removed a project: MediaWiki-Maintenance-system.Sep 2 2024, 3:54 AM

Some excessive linkpurge/nulledit also happen to fill the categories due to T373722
The next run of recountCategories.php should fix it.

In T373773#10111316, @Umherirrender wrote:

Some excessive linkpurge/nulledit also happen to fill the categories due to T373722
The next run of recountCategories.php should fix it.

it is about the number of subpages, not the number of files in those categories. Subpages are not affected by excessive linkpurge of files, I assume.
We can wait till the # of subpages are re-generated. In the worst case we loose the test case. In any case negative results (negative # of subpages, also files) should be asserted and considered a wrong state.

The count in the database has three parts: "all members", "file members" and "sub-category members".
The page count is not tracked as own field, but calcuated by the others.

In T373773#10109174, @Bugreporter wrote:

maybe a bug in recountCategories.php, which runs once every month (at 1st day 4:00).

another month is gone, problem persists (although with arbitrary subcats of https://commons.wikimedia.org/wiki/Category:Files_with_coordinates_missing_SDC_location_of_creation)

Change #1083887 had a related patch set uploaded (by Umherirrender; author: Umherirrender):

[mediawiki/core@master] Category: Refresh counts for negative page count

https://gerrit.wikimedia.org/r/1083887

gerritbot added a project: Patch-For-Review.Oct 28 2024, 7:31 PM

Change #1083887 merged by jenkins-bot:

[mediawiki/core@master] Category: Refresh counts for negative page count

https://gerrit.wikimedia.org/r/1083887

Umherirrender closed this task as Resolved.Oct 31 2024, 5:43 PM

Umherirrender claimed this task.

Umherirrender removed a project: Patch-For-Review.

ReleaseTaggerBot added a project: MW-1.44-notes (1.44.0-wmf.2; 2024-11-05).Oct 31 2024, 6:00 PM

Change #1085505 had a related patch set uploaded (by PleaseStand; author: PleaseStand):

[mediawiki/core@master] Category: Fix mistake when adjusting negative page counts

https://gerrit.wikimedia.org/r/1085505

gerritbot added a project: Patch-For-Review.Nov 1 2024, 2:06 AM

Change #1085505 merged by jenkins-bot: