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log_search rows with ls_field='target_author_actor' and empty ls_value are created during actor migration
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Description

When the actor migration stage is set to write-both and migrateActors.php hasn't been run yet, using RevDel will create entries in log_search with ls_field='target_author_actor' and empty ls_value.

This happened on Wikimedia wikis, and so needs to be cleaned up, but should not be happening anymore since migrateActors.php has already been completed.

  • Patch MediaWiki so this won't happen anymore.
  • Fix the maintenance script's inefficient query.
  • Run maintenance to clean up existing instances of this problem on Wikimedia wikis.

This blocks setting actor migration on Wikimedia wikis to write-both/read-new.

Details

SubjectRepoBranchLines +/-
MigrateActors: Improve query for log_search rowsmediawiki/corewmf/1.33.0-wmf.23+1 -1
MigrateActors: Improve query for log_search rowsmediawiki/corewmf/1.33.0-wmf.24+1 -1
MigrateActors: Improve query for log_search rowsmediawiki/coremaster+1 -1
RevDel: Avoid log_search rows with empty values for target_author_actormediawiki/coremaster+107 -23
Customize query in gerrit

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Event Timeline

Anomie created this task.Feb 7 2019, 4:11 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptFeb 7 2019, 4:11 PM
gerritbot subscribed.Feb 7 2019, 4:38 PM

Change 488961 had a related patch set uploaded (by Anomie; owner: Anomie):
[mediawiki/core@master] RevDel: Avoid log_search rows with empty values for target_author_actor

https://gerrit.wikimedia.org/r/488961

gerritbot added a project: Patch-For-Review.Feb 7 2019, 4:38 PM
Anomie mentioned this in T188327: Deploy refactored actor storage.Mar 15 2019, 4:43 PM
Nirmos subscribed.Mar 16 2019, 1:24 AM
Anomie mentioned this in T203913: User.php: Cannot create a user with no name, no ID, and no actor ID (Unable to delete certain pages on Chinese Wikisource).Mar 19 2019, 6:07 PM
gerritbot added a comment.Mar 21 2019, 8:42 PM

Change 488961 had a related patch set uploaded (by Anomie; owner: Anomie):
[mediawiki/core@master] RevDel: Avoid log_search rows with empty values for target_author_actor

https://gerrit.wikimedia.org/r/488961

gerritbot added a comment.Mar 21 2019, 10:03 PM

Change 488961 merged by jenkins-bot:
[mediawiki/core@master] RevDel: Avoid log_search rows with empty values for target_author_actor

https://gerrit.wikimedia.org/r/488961

ReleaseTaggerBot added a project: MW-1.33-notes (1.33.0-wmf.23; 2019-03-26).Mar 21 2019, 11:01 PM
daniel subscribed.Apr 1 2019, 11:38 AM

Looks like the patch is merged. Now this needs a maintenance script to run, right?

daniel moved this task from Waiting for Review to Ready on the Platform Team Workboards board.Apr 1 2019, 11:38 AM
daniel edited projects, added Platform Team Workboards; removed Platform Team Workboards (Waiting for Review).
daniel triaged this task as Medium priority.Apr 1 2019, 1:26 PM
Stashbot added a comment.Apr 2 2019, 1:44 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-02T13:44:27Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on test wikis and mediawikiwiki for T215525

Anomie updated the task description. (Show Details)Apr 2 2019, 1:45 PM
Anomie edited projects, added Platform Team Workboards (Waiting for Review); removed Platform Team Workboards.Apr 2 2019, 2:43 PM

When running the maintenance script on mediawikiwiki, I found that a query can no longer use the indexes properly after the change made for T216247: DatabaseMysql(Base)::buildStringCast should probably actually cast. In brief, the join ON ( ls_value = CAST( actor_user AS BINARY ) ) can't use the actor_user index as intended. It needs to cast the other way instead, ON ( actor_user = CAST( ls_value AS INTEGER ) ).

gerritbot added a comment.Apr 2 2019, 2:43 PM

Change 500754 had a related patch set uploaded (by Anomie; owner: Anomie):
[mediawiki/core@master] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500754

Anomie updated the task description. (Show Details)Apr 2 2019, 2:43 PM
gerritbot added a comment.Apr 3 2019, 8:27 AM

Change 500754 merged by jenkins-bot:
[mediawiki/core@master] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500754

ReleaseTaggerBot edited projects, added MW-1.33-notes (1.33.0-wmf.25; 2019-04-09); removed MW-1.33-notes (1.33.0-wmf.23; 2019-03-26).Apr 3 2019, 9:01 AM
gerritbot added a comment.Apr 3 2019, 2:27 PM

Change 500969 had a related patch set uploaded (by Anomie; owner: Anomie):
[mediawiki/core@wmf/1.33.0-wmf.23] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500969

gerritbot added a comment.Apr 3 2019, 2:27 PM

Change 500970 had a related patch set uploaded (by Anomie; owner: Anomie):
[mediawiki/core@wmf/1.33.0-wmf.24] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500970

Anomie edited projects, added Platform Team Workboards (Doing); removed Platform Team Workboards (Waiting for Review), Patch-For-Review.Apr 3 2019, 2:31 PM
Anomie updated the task description. (Show Details)
gerritbot added a comment.Apr 3 2019, 2:53 PM

Change 500969 merged by jenkins-bot:
[mediawiki/core@wmf/1.33.0-wmf.23] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500969

gerritbot added a comment.Apr 3 2019, 2:53 PM

Change 500970 merged by jenkins-bot:
[mediawiki/core@wmf/1.33.0-wmf.24] MigrateActors: Improve query for log_search rows

https://gerrit.wikimedia.org/r/500970

Stashbot added a comment.Apr 3 2019, 2:59 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T14:59:33Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 1 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:06Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 2 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:09Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on remaining section 3 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:12Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 4 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:15Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 5 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:18Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 6 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:21Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 7 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:24Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on section 8 wikis for T215525

Stashbot added a comment.Apr 3 2019, 3:00 PM

Mentioned in SAL (#wikimedia-operations) [2019-04-03T15:00:29Z] <anomie@mwmaint1002> Fixing empty values for 'target_author_actor' in log_search on wikitech for T215525

ReleaseTaggerBot edited projects, added MW-1.33-notes (1.33.0-wmf.23; 2019-03-26); removed MW-1.33-notes (1.33.0-wmf.25; 2019-04-09).Apr 3 2019, 3:01 PM
Anomie closed this task as Resolved.Apr 3 2019, 4:16 PM
Anomie updated the task description. (Show Details)

Script run and results checked.

• WDoranWMF edited projects, added Platform Team Workboards (Done with CPT); removed Platform Team Workboards (Doing).Jul 5 2019, 3:26 PM
Aklapper removed a subscriber: Anomie.Oct 16 2020, 5:41 PM
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