Disque\Connection\Manager::switchNodeIfNeeded PHP Метод

    private function switchNodeIfNeeded()
    {
        $sortedNodes = $this->priorityStrategy->sort($this->nodes, $this->nodeId);
        // Try to connect by priority, continue on error, return on success
        foreach ($sortedNodes as $nodeCandidate) {
            // If the first recommended node is our current node and it has
            // a working connection, return early.
            // If its connection is not working, let's try and reconnect further
            // below, or find the first best connected node.
            if ($nodeCandidate->getId() === $this->nodeId && $nodeCandidate->isConnected()) {
                return;
            }
            try {
                if ($nodeCandidate->isConnected()) {
                    // Say a new HELLO to the node, the cluster might have changed
                    $nodeCandidate->sayHello();
                } else {
                    $nodeCandidate->connect();
                }
            } catch (ConnectionException $e) {
                continue;
            }
            $this->switchToNode($nodeCandidate);
            return;
        }
        throw new ConnectionException('Could not switch to any node');
    }