Full ERROR Message Example

[Stream #9220a784-08ae-11eb-adc1-0242ac120002] Session failed because remote peer 10.10.238.196:7000 was restarted

Why does this ERROR occur?

This error message appears when a remote node involved in a streaming operation is restarted. When the node goes down, the handshake and agreement around the data to be streamed is reset.

How do you fix this ERROR?

There is nothing to actually fix from this error. Because the remote peer was restarted, the session fails. The only thing that you can do is prevent the error from occurring by not restarting Cassandra instances during Bootstrapping, Repair, or other operations that involve streaming of data between nodes.