$pending = $queue->getSize();
$claimed = $queue->getAcquiredCount();
$abandoned = $queue->getAbandonedCount();
$active = max( 0, $claimed - $abandoned );
$pending = $queue->getSize();
$claimed = $queue->getAcquiredCount();
$abandoned = $queue->getAbandonedCount();
$active = max( 0, $claimed - $abandoned );