public function synchronizeAllAction()
    {
        $batch = $this->loader->getTracker()->synchronizeSources(null, $this->currentUser->getUserId());
        $batch->minimalStepDurationMs = 3000;

        $title = $this->_('Synchronize all sources.');
        $this->_helper->batchRunner($batch, $title, $this->accesslog);

        $this->html->actionLink(array('action' => 'index'), $this->_('Cancel'), array('class' => 'btn-danger'));

        $this->addSynchronizationInformation();
    }