Manual:$wgMaxExecutionTimeForExpensiveQueries

Database settings: $wgMaxExecutionTimeForExpensiveQueries
Max execution time for queries of several expensive special pages such as RecentChanges in milliseconds.
Introduced in version:1.37.2 (Gerrit change 766791; git #I3ff7875)
Removed in version:still in use
Allowed values:(integer)
Default value:0

Availability edit

This was introduced in MediaWiki 1.38.0 (Gerrit change 747142). It was backported to 1.37.2 (Gerrit change 766791), 1.36.4 (Gerrit change 766792) and 1.35.6 (Gerrit change 766793).