thanks for all your help. i successfully upgraded my zookeeper to an ensemble. what i did is updated the configuration and restarted the first node. then launched one node. then launched another node.
i think the thing to remember is to launch the original node first so that its data would be copied to the other nodes. On Wed, May 29, 2013 at 11:29 PM, kishore g <[email protected]> wrote: > Are you ok with shutting down zookeeper and clients ? If yes, then > > 1. shutdown existing zookeeper > 2. copy zookeeper data and translog directory new locations > 3. change the zoo.config on each server to include all 3 servers. see > ( > http://zookeeper.apache.org/doc/r3.2.2/zookeeperStarted.html#sc_RunningReplicatedZooKeeper > ) > > Start the servers, change your clients to use all > zk1:port1,zk2:port2,zk3:port3 in the connect string. > > thanks, > Kishore G > > On Wed, May 29, 2013 at 2:54 AM, Kuba Lekstan <[email protected]> wrote: > > Nothing bad should happen as long as you start your current ZK instance > > before other. > > > > BTW: Before doing the change in production environment do some tests. > > > > > > 2013/5/29 Nathaniel Domingo <[email protected]> > > > >> not existing cluster. zookeeper operating in standalone mode. i need to > >> convert it into a cluster for redundancy. > >> > >> > >> On Wed, May 29, 2013 at 4:34 PM, Kuba Lekstan <[email protected]> > wrote: > >> > >> > Hello, > >> > > >> > If you want to just add one ZK node to existing cluster the easier and > >> > safest way would be to do a rolling restart. > >> > > >> > Kuba. > >> > > >> > > >> > 2013/5/29 Nathaniel Domingo <[email protected]> > >> > > >> > > Hi, > >> > > > >> > > What do you think is the safest way of upgrading a single instance > >> > > zookeeper to an ensemble? The goal is not to loose any data. > >> > > > >> > > Regards, > >> > > Nathaniel > >> > > > >> > > >> >
