How do I add a node that has been decommissioned

[Kant Kodali]

Hi,

I am wondering how to add a node that I just decommissioned? I understand decommissioning a node means the token range is assigned to other nodes so I am trying to reinitialize by starting Cassandra again hoping that it would gossip again and join the cluster again but that doesn't seem to happen. don't know why?

Thanks!

[Andrew Tolbert]

Hi Kant,

This is more of a cassandra operational issue and not a driver problem so the cassandra-user list might be better able to handle this question, but I think all you need to do is delete the data and commitlog directories on that node and start it back up.  You may also need to change the initial_token if you had that set in cassandra.yaml and you aren't using vnodes before starting the node as well.

Thanks,

Andy