I have two questions regarding the kafka broker setup.
1. Assuming i have a 4-broker and 2-zookeeper (running in quorum mode)
setup, if topicA-partition0 has the leader set to broker4, can I change the
leader to other broker without killing the current leader?
2. What is the latency of switching to a different leader when the current
leader is down? Do we configure it using the consumer property -
3. What is the best practice of dynamically adding a new node to a kafka
cluster? Should i bring up the node, and then increase the replication
factor for the existing topic(s)?
thanks in advance,