Indeed I went through this Admin guide for my version 3.5.8 and iam a bit confused with this attribute standaloneEnabled it doesn't seems to present as a part of Pristine/out of the box config but docs says its value is true by default, what does it exactly govern , more specific is this be part of my ensemble zk server config?
PS thanks for the GitHub repo link Regards, Gaurav On Tue, 20 Jun, 2023, 01:04 Patrick Hunt, <ph...@apache.org> wrote: > It really depends on your requirements. You should read the admin docs for > insight and examples, start here: > https://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_designing > > That said, I have a project here which I use for config generation/testing. > YMMV: > https://github.com/phunt/zkconf > > Patrick > > On Mon, Jun 19, 2023 at 11:32 AM Gaurav Pande <gaupand...@gmail.com> > wrote: > > > Okay thanks, and could you share what's the standard config for ensemble > as > > example? I mean what all parameters it includes. > > > > Also do I need to add standaloneEnabled=false on these 2 new zk servers > > config file as a part of initial base ensemble config as by default this > > parameter value is true? So that Making 2 zk's run in replicated mode > > from starting (starting one at a time) > > > > Regards, > > Gaurav > > > > > > On Mon, 19 Jun, 2023, 22:03 Patrick Hunt, <ph...@apache.org> wrote: > > > > > On Mon, Jun 19, 2023 at 8:47 AM Gaurav Pande <gaupand...@gmail.com> > > wrote: > > > > > > > Hi Patrick, > > > > > > > > Thanks for guidance here , based on below I only have presently 1 zk > > > node > > > > so if I provision 2 new VM and install same version of zookeeper on > > them > > > > should I start them as standalone zookeepers first and then make > > changes > > > to > > > > there server config file? > > > > > > > > > > > No, you specifically want to add them as part of the ensemble, one at a > > > time in sequence (see 2). > > > > > > > > > > Also what are the valid zk configs that I would need to add on these > 2 > > > new > > > > VM's zk server config file? > > > > > > > > > > > You'll need a regular ensemble config, not a standalone. > > > > > > Patrick > > > > > > > > > > Regards, > > > > Gaurav > > > > > > > > On Mon, 19 Jun, 2023, 21:06 Patrick Hunt, <ph...@apache.org> wrote: > > > > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
