$pendingDBs = array();
# Cross-reference DBs by master DB server
$dbsByMaster = array();
- $defaultMaster = $wgAlternateMaster['DEFAULT'];
+ $defaultMaster = isset( $wgAlternateMaster['DEFAULT'] )
+ ? $wgAlternateMaster['DEFAULT']
+ : $wgDBserver;
foreach ( $wgLocalDatabases as $db ) {
if ( isset( $wgAlternateMaster[$db] ) ) {
$dbsByMaster[$wgAlternateMaster[$db]][] = $db;