Add support for stop writing to the old file db schema
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	Ladsgroup
	Jan 23 2026, 1:13 AM

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Aklapper

Ladsgroup

Zabe

Description

Currently LocalFile writes to image and oldimage unconditionally. We should put that behind the migration config.

Details

Related Changes in Gerrit:

Subject	Repo	Branch	Lines +/-
FileRepo: Avoid writing to image/oldimage if config is not WRITE_OLD	mediawiki/core	master	+113 -78
FileRepo: More cases of stopping to read and wrtie on the old schema	mediawiki/core	master	+124 -53
FileRepo: First pass at putting write to old schema behind config	mediawiki/core	master	+142 -123

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Status	Assigned	Task
		· · ·
Open	Ladsgroup	T28741 Migrate file tables to a modern layout (image/oldimage; file/filerevision; add primary keys)
Open	Ladsgroup	T415330 Add support for stop writing to the old file db schema
		· · ·

Event Timeline

Ladsgroup created this task.Jan 23 2026, 1:13 AM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 23 2026, 1:13 AM

Maintenance_bot added a project: Commons.Jan 23 2026, 1:31 AM

Zabe subscribed.Feb 20 2026, 4:29 PM

Ladsgroup moved this task from Triage to Ready on the DBA board.Feb 23 2026, 1:03 PM

Mr._Starfleet_Command subscribed.Mar 4 2026, 10:10 PM

Mr._Starfleet_Command unsubscribed.Mar 5 2026, 1:38 AM

Change #1269743 had a related patch set uploaded (by Ladsgroup; author: Ladsgroup):

[mediawiki/core@master] FileRepo: First pass at putting write to old schema behind config

https://gerrit.wikimedia.org/r/1269743

gerritbot added a project: Patch-For-Review.Apr 10 2026, 12:35 AM

Change #1269743 merged by jenkins-bot:

[mediawiki/core@master] FileRepo: First pass at putting write to old schema behind config

https://gerrit.wikimedia.org/r/1269743

Maintenance_bot removed a project: Patch-For-Review.Apr 10 2026, 2:31 PM

ReleaseTaggerBot added a project: MW-1.46-notes (1.46.0-wmf.24; 2026-04-14).Apr 10 2026, 3:00 PM

Change #1273030 had a related patch set uploaded (by Ladsgroup; author: Ladsgroup):

[mediawiki/core@master] FileRepo: More cases of stopping to read and wrtie on the old schema

https://gerrit.wikimedia.org/r/1273030

gerritbot added a project: Patch-For-Review.Apr 17 2026, 12:27 AM

Change #1273030 merged by jenkins-bot:

[mediawiki/core@master] FileRepo: More cases of stopping to read and wrtie on the old schema

https://gerrit.wikimedia.org/r/1273030

ReleaseTaggerBot edited projects, added: MW-1.46-notes (1.46.0-wmf.26; 2026-04-28); removed: MW-1.46-notes (1.46.0-wmf.24; 2026-04-14).Apr 22 2026, 1:00 AM

Maintenance_bot removed a project: Patch-For-Review.Apr 22 2026, 1:30 AM

Change #1276832 had a related patch set uploaded (by Ladsgroup; author: Ladsgroup):

[mediawiki/core@master] FileRepo: Avoid writing to image/oldimage if config is not WRITE_OLD

https://gerrit.wikimedia.org/r/1276832

gerritbot added a project: Patch-For-Review.Apr 24 2026, 12:08 AM

This would be the last patch and this can be considered done afterwards.

Change #1276832 merged by jenkins-bot: