Thank you very much for this helpful information! I opened a new thread for the other question :)
Sergio Il giorno gio 13 feb 2020 alle ore 19:22 Erick Ramirez < erick.rami...@datastax.com> ha scritto: > 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. > > > That's not really going to hurt you if you have other seeds in other DCs. > But if you're willing to take the hit from the restart then feel free to do > so. Just saying that it's not necessary to do it immediately so the option > is there for you. :) > > > 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? > > > You generally want to make the seeds list the same across all nodes in the > cluster. You want to avoid the situation where lots of nodes are used as > seeds by various nodes. Limiting the seeds to 2 per DC means that gossip > convergence will happen much faster. Cheers! > >>