Couchbase CbBackup工具在集群中特定存储桶30秒不活动后被中断

我有一个包含4个存储桶的集群。每当我尝试单独备份存储桶时，其中两个存储桶会得到备份，而另外两个不会得到备份

Bucket 1 - 4GB RAM, currently has around 400,000 documents.
Bucket 2 - 4GB RAM, currently has around 150,000 documents.

对于未备份的存储桶，我在控制台中收到了此消息

w0 no response for 30 seconds while there 1024 active streams

这是我为每个桶运行的命令

./cbbackup http://localhost:8091 /datadrive/cb-backups/ -u <USERNAME> -p '<PASSWORD>' -b <BUCKET_NAME> -m full

值得注意的是，我们首先在两个存储桶中都有2GB内存。在增加两个存储桶的RAM后，备份再次开始工作，但从第二天起发生了相同的错误

CbBackup工具是否存在固有问题？有人知道备份是如何进行的吗？这将使我们更深入地了解为什么会发生这种错误

DISTILLED TECHNICAL INFORMATION:

Couchbase Server - Community Edition 5.0.1 build 5003
Command used - `./cbbackup http://localhost:8091 /datadrive/cb-backups/ -u <USERNAME> -p '<PASSWORD>' -b <BUCKET_NAME> -m full`

* Bucket Specs -
   * Bucket 1 - 4GB RAM, currently has around 400,000 documents.
   * Bucket 2 - 4GB RAM, currently has around 150,000 documents.

技术信息：
Couchbase服务器-社区版5.0.1构建5003
使用的命令-`./cbbackuphttp://localhost:8091 /datadrive/cb备份/-u-p'-b-m已满`
*桶规格-
*Bucket 1-4GB RAM，目前有大约400000个文档。
*Bucket 2-4GB RAM，目前大约有150000个文档。

谢谢你宝贵的时间