问在动物园管理员建议请求阶段时，跟随节点对磁盘的刷新请求是吗？

EN

 //  the follower receive the proposal request method , forword to syncProcessor
 public void FollowerZooKeeperServer#logRequest(TxnHeader hdr, Record txn) {
            Request request = new Request(null, hdr.getClientId(), hdr.getCxid(),
                    hdr.getType(), null, null);
            request.hdr = hdr;
            request.txn = txn;
            request.zxid = hdr.getZxid();
            if ((request.zxid & 0xffffffffL) != 0) {
                pendingTxns.add(request);
            }
            syncProcessor.processRequest(request);
        }



 // the SyncRequestProcessor operation , after tx log commit to disk , it response the ack request. Was it ok ?
private void flush(LinkedList<Request> toFlush)
        throws IOException, RequestProcessorException
    {
        if (toFlush.isEmpty())
            return;

        zks.getZKDatabase().commit();
        while (!toFlush.isEmpty()) {
            Request i = toFlush.remove();
            if (nextProcessor != null) {
                nextProcessor.processRequest(i);
            }
        }
        if (nextProcessor != null && nextProcessor instanceof Flushable) {
            ((Flushable)nextProcessor).flush();
        }
    }