Your email is a little ambiguous. a) "5 instances with 3 as quorum" could mean 5 instances configured and running normally.
Or b) it could mean 5 instances with 2 instances that are down. In (a) restarting the leader instance *should* cause the cluster to do a leader election again and form a new quorum. That is a form of losing quorum. If that is what you mean, this is normal. A new quorum should be formed and things should continue fairly soon. In (b), restarting the leader will result in only 2 instances running which is not enough to maintain quorum and until you have at least 3 nodes running again, you can't proceed. On Wed, Apr 9, 2014 at 11:03 AM, Bae, Jae Hyeon <[email protected]> wrote: > Hi zookeeper users > > While rolling restart zookeeper cluster of 5 instances with 3 as quorum, > restarting the leader instance made quorum lost. Is this expected? > Otherwise, how can I restart the leader instance without interrupting whole > cluster? Or is this fixed in 3.4.6? > > Thank you > Best, Jae >
