Hello,
can the same node be used by multiple drivers concurrently?
No, at any given time, a node can only be connected to a single driver.
However, a node doesn't have to be stuck with only one driver. Every node has a fallback mechanism in case of driver failure. The default behavior is to get the driver connection information from the configuration, but you can also plug your own
connection strategy so that a node can reconnect to any server from an existing pool of servers, in the order that you specify.
I hope this clarifies,
-Laurent