Page MenuHomePhabricator

Full UserMerge support for WMF wikis
Open, Needs TriagePublic

Description

Problem

Not sure if it'd qualify for this wishlist, so apologies in advance if I'm mistaken.

MediaWiki-extensions-UserMerge has a good potential to help in the final stage of SUL-Finalization, but it is still somewhat buggy. Work has been done at T69758

Who would benefit

All wikis using the extension.

Proposed solution

T69758: Identify extensions that need updates to work with user merging needs attention. If we can add support for at least the extensions in use at WMF, it'd be a big step forward. I think it is doable because it is not like rewritting the whole extension from scratch, but to identify specific parts of the extensions to work with this one. If we can make this happen, T49918: Rename of global (attached) users to existing global usernames would be achievable as we did with GlobalRename

Related Objects

StatusAssignedTask
OpenNone
ResolvedJdforrester-WMF
ResolvedReedy
ResolvedReedy
ResolvedLegoktm
ResolvedLegoktm
ResolvedEjegg
InvalidNone
ResolvedLegoktm
ResolvedLegoktm
ResolvedNone
ResolvedLegoktm
ResolvedEBernhardson
ResolvedLegoktm
DeclinedNone
ResolvedLegoktm
Resolvedaaron
ResolvedLegoktm
ResolvedLegoktm
DeclinedNone
ResolvedNikerabbit
DeclinedNone
DeclinedNone
DeclinedNone
ResolvedLegoktm
ResolvedLegoktm
ResolvedLegoktm
InvalidLegoktm
ResolvedTgr

Event Timeline

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptJan 29 2017, 12:30 PM

To my understanding, big part of the issue with this is old contributions in the databases that can throw up if reassigned.

Tgr added a subscriber: Tgr.Jan 29 2017, 11:37 PM

More in scope for the community tech wishlist than the developer wishlist, I think?

Removing wishlist tag. This is important but not something that would make development easier.

@Tgr Ok, I've added this as parent task of the mentioned above. Feel free to triage/close as duplicate/decline as appropriate. Regards.

Please note that while we've discarded global user merge for now, this Special:UserMerge would be useful, still, in some cases where stewards are required to fix SUL issues.

Restricted Application added a project: User-MarcoAurelio. · View Herald TranscriptAug 5 2017, 9:45 AM
1997kB added a subscriber: 1997kB.May 8 2018, 12:15 AM

A couple of days ago being able to at least merge two accounts on mediawikiwiki would've been tad useful (request) 😿

The main problem with this is the large number of database updates that need to be made here, as well as lack of indexes on those tables (e.g. T105398). When we tried global user merge on Yuvi's account, it ended up doing a full table scan on the commonswiki image table and caused a decent amount of replag. At that time Aaron and I had brainstormed some ways to work around the lack of indexes by just going through the table in batches but I don't remember why it was never implemented...probably lack of time/resources.

What I said in T177410#3659562 is still true, and has probably worsened.

@Legoktm Seeing the issues you describe, and taking into count that the extension is unusable in our environment as it stands now; is there any reason why we still keep UserMerge on Wikimedia Production? I still think UM would be fantastic and useful, but if it is broken and cannot be fixed I'd say we should undeploy the thing from prod. I do not have all the data nor the knowledge to make such decision so I'm not opening a task. I'm saying all this with sadness, for the record. Thanks.