I am trying to migrate an 0.9.0 druid cluster off of a degraded zookeeper instance. I am moving the whole cluster to a new provider and am not sure what complications might arise by just swapping the zookeeper connection string and restarting. I know zk is used not only for service discovery but segment announcement afaik.
We use tranquility to index from kafka so I am not sure how swapping zookeeper will work in this case. Will announced segments get ‘stuck’, should i disable the hourly workers, let the jobs queue up, then restart the middle managers once they are idle?
4 middle managers (new provider) & tranq