FYI - have a look at our Exhibitor system which makes upgrades/additions easier to manage.
https://github.com/Netflix/exhibitor On 6/18/12 11:26 AM, "Ted Dunning" <[email protected]> wrote: >Yes. Updating and restarting works fine. > >One does wonder why you have *four* servers now. That generally doesn't >provide any advantage over having three servers. > >On Mon, Jun 18, 2012 at 10:28 AM, David Nickerson < >[email protected]> wrote: > >> Say I have a quorum of four ZooKeeper servers. Is there any way I can >>add a >> fifth ZooKeeper to the quorum without interrupting the service? I see >>some >> work on making it easy >> here<https://issues.apache.org/jira/browse/ZOOKEEPER-107>and >> here< >> >>https://cwiki.apache.org/confluence/display/ZOOKEEPER/ClusterMembership>, >> but I'm wondering if there's currently any way to do it at all. Would it >> work to start up the fifth pointing to all of the others, then >>one-by-one >> restart the others, updating their configuration to include the fifth? >>
