Josef,
Consider your redundancy model carefully. 3 voting (participant) nodes are
required for quorum, however given the 2N+1 redundancy model, this means that
you can lose one node and continue to function. If a second node is lost, you
will lose quorum.
It’s recommended to have 5
I wasn’t aware of the observer concept. I just read the documentation about it,
but I’m not 100% whether I’m getting it right. The document tells that
observers are non-voting members, but do observer extend the quorum or not?
Because, you said you would do 1 observer per location, but what
I don’t think you need a third data Center. You can still go with 2 DC with
3 and 2 ZK nodes. A cluster with 5 nodes. You can keep 1 node in each dc as
observer node. This will make sure only 3 nodes are participating in leader
election process and hence a quorum of 3 will work.
On Mon, 24 Jul
Hi guys
Today we have just one datacenter with a few NiFi clusters, so we use a
dedicated 3-node zookeeper cluster in that datacenter. We are now planning to
expand to another datacenter, so we would like to split the NiFi nodes as well
as zookeeper nodes to the two datacenters. However 2
