Two ways to do it come to mind, which I've used in the past: 1) most straightforward is to "clone" the repos for the two new members of the ensemble in their respective configs/datadirs. Just make sure to update the configs appropriately. Including the "myid" for each server. Then restart the ensemble and verify.
2) You can't go from 1->3 servers just by adding two new servers to the ensemble as they may form a quorum on the "zero" zxid, rather than the zxid of the existing member. Rather you would need to go from 1->2, with quorum, and then from 2->3 with quorum. This will ensure that the true state of the original quorum is maintained (this is what we implemented for Cloudera Manager to ensure proper functioning when increasing quorum size). Good luck, Patrick On Mon, Jun 19, 2023 at 12:02 AM Gaurav Pande <gaupand...@gmail.com> wrote: > Hi tison, > > When you say stop services you mean existing standalone Zk service right? > , if that's the case then yes we can. But what's the process ? Also can it > be done without re-start I didn't know , can you share both process/steps? > > On Mon, 19 Jun, 2023, 10:15 tison, <wander4...@gmail.com> wrote: > > > Can you stop the services for reconfig, or you need an online reconfig? > > > > Best, > > tison. > > > > > > Gaurav Pande <gaupand...@gmail.com> 于2023年6月19日周一 11:22写道： > > > > > Hi Guys, > > > > > > Any help on this thread please? > > > > > > Regards, > > > Gaurav > > > > > > On Sun, 18 Jun, 2023, 20:14 Gaurav Pande, <gaupand...@gmail.com> > wrote: > > > > > > > Hello Guys, > > > > > > > > Iam new in this space, I wanted to know process/steps to convert a > > > single > > > > Zk node in standalone presently to a 3 node ZK quorum . > > > > > > > > What steps should I perform to add make my standalone Zk node a > Quorum > > of > > > > 3 zk nodes? > > > > > > > > I am using ZK version 3.5.8 presently. > > > > > > > > Note - I have single Zookeeper(Standalone) and 3 Kafka brokers at > this > > > > point. > > > > > > > > Regards, > > > > Gaurav > > > > > > > > > > > > > >
