On Wed, Dec 2, 2009 at 11:47 AM, Andrew Garrett agarrett@wikimedia.org wrote:
It was disabled for performance reasons. Bryan has updated the extension to improve its performance, and I have reviewed these updates. Some of his updates depend on schema changes, which, even by entirely dropping the data table and recreating it under the new schema, will take time to apply. Once this schema change has been applied, it will be possible to re-activate GlobalUsage.
Truncation is currently not running, right? Perhaps we could truncate the table in a more or less database friendly way: while ( $dbw->query( 'DELETE FROM globalimagelinks LIMIT 5000' ) ) { wfWaitForSlaves(5); }, so that the schema change can be easily applied.
Bryan