An update is already in progress.
It is normal that the update progresses only slowly since it only refreshes data in small chunks each time a user accesses the wiki.
To finish this update more quickly, you can invoke the MediaWiki maintenance script runJobs.php (use the option --maxjobs 1000 to restrict the number of updates done in one batch).
Estimated progress of current update:
MediaWiki:Smw smwadmin datarefreshprogress
From AquaPedia Case Study Database
