运行的LLM服务从某天开始就突然不好使了，但是当时没有怀疑是向量数据库的问题，只觉得是token到期了之类的原因，不常用便没有管。结果登录LLM开放平台一看，余额还有很多，本地也跑得起来。一排查发现是云端数据库404了，登录QDrant Cloud发现集群空空如也。打开邮箱发现躺尸已久的数据库删库通知邮件：

Your cluster was deleted due to inactivity.

If you want to continue using Qdrant, you can always create a new cluster. If you don’t want your cluster to be deleted due to inactivity in the future, consider creating a paid cluster.

Paid clusters have multiple benefits over free tier clusters, such as:

Horizontal Scaling and Replication for High Availability
Support for automatic Snapshots and Restores
Included support with response time SLAs
No automatic suspension or deletion
Guaranteed resources for increased performance

原来被删三周前已经有预告：

Your cluster was suspended due to inactivity.

You can reactivate it here within the next three weeks, or you can upgrade to a paid cluster!

Paid clusters have multiple benefits over free tier clusters, such as:

Horizontal Scaling and Replication for High Availability
Support for automatic Snapshots and Restores
Included support with response time SLAs
No automatic suspension or deletion
Guaranteed resources for increased performance
If you do not reactivate your cluster or upgrade to a paid cluster, it will be permanently deleted.

被删一周前：

Due to inactivity, your suspended cluster will be deleted in 7 days.  

Please re-activate your cluster or upgrade to a paid cluster to avoid deletion!

Paid clusters have multiple benefits over free tier clusters, such as:

Horizontal Scaling and Replication for High Availability
Support for automatic Snapshots and Restores
Included support with response time SLAs
No automatic suspension or deletion
Guaranteed resources for increased performance