Right now yes I have one seed per DC. I want to have more than one seed node in each DC, so unless I don't restart the node after changing the seed_list in that node it will not become the seed.
Do I need to update the seed_list across all the nodes even in separate DCs and perform a rolling restart even across DCs or the restart should be happening only on the new node that I want as a seed? The reason each Datacenter has: a seed from the current DC belongs to and a seed from the other DC. Thanks, Sergio Il giorno gio 13 feb 2020 alle ore 18:41 Erick Ramirez < erick.rami...@datastax.com> ha scritto: > 1) If I don't restart the node after changing the seed list this will >> never become the seed and I would like to be sure that I don't find my self >> in a spot where I don't have seed nodes and this means that I can not add a >> node in the cluster > > > Are you saying you only have 1 seed node in the seeds list of each node? > We recommend 2 nodes per DC as seeds -- if one node is down, there's still > another node in the local DC to contact. In the worst case scenario where 2 > nodes in the local DC are down, then nodes can contact seeds in other DCs. > > For the second item, could I make a small request? Since it's unrelated to > this thread, would you mind starting up a new email thread? It just makes > it easier for other users to follow the threads in the future if they're > searching for answers to similar questions. Cheers! > >>
