+ if ( $conn ) {
+ $close = false; // already open
+ } else {
+ $conn = $this->parent->openConnection( $i, $wiki );
+ $close = true; // new connection
+ }
+
+ if ( !$conn ) {
+ $lagTimes[$i] = false;
+ $host = $this->parent->getServerName( $i );
+ wfDebugLog( 'replication', __METHOD__ . ": host $host (#$i) is unreachable" );