https://bugzilla.wikimedia.org/show_bug.cgi?id=24375

           Summary: $wgDeferredUpdateList and long-running scripts
           Product: MediaWiki
           Version: 1.17-svn
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: Normal
         Component: Maintenance scripts
        AssignedTo: innocentkil...@gmail.com
        ReportedBy: jschulz_4...@msn.com


Import scripts and probably other maintenance script call things like doEdit()
or (onArticleEdit() directly) which builds up $wgDeferredUpdateList. These
updates are not done until it finishes whatever it was doing, which means the
$wgDeferredUpdateList array can get huge and slow.

Maybe:
(a) they should call wfDoUpdates() around wfWaitForSlaves(). This is simple but
requires script writers to remember non-obvious crap
(b) stuff that uses wgDeferredUpdateList does it immediately if in cli mode
(c) stuff that uses wgDeferredUpdateList does do (nor defer) updates when in
cli mode. Callers would have to do whatever themselves (which could lead to
duplicated code).

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