Ephemeral nodes are temporary nodes that are automatically deleted when the client session that created them ends.
The Ephemeral node will be created when establishing a connection between the client and ZooKeeper server, and will be deleted when the connection is disconnected.
Ephemeral nodes are typically used for temporary tasks, such as temporary task processing or temporary node registration.
The creation and deletion of Ephemeral nodes are controlled by the client, not by the ZooKeeper server.
Ephemeral nodes are not permitted to have child nodes, meaning they cannot contain any sub-nodes.
