Ted: Thanks for the answer. The quorum of four servers was hypothetical; our business has not incorporated ZooKeeper yet.
Also, I would imagine that this solution wouldn't work for two servers, because we'd lose the quorum? Jordan: Thanks for the link, that looks like it'll be very helpful. On Mon, Jun 18, 2012 at 2:35 PM, Jordan Zimmerman <[email protected]>wrote: > 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? > >> > >
