Hi Hailey. No, I just looked, and zookeeper-server-stop does not have any facility to be specific about which ZK nodes to signal. So providing the ability in kafka-server-stop to be more specific than just "signal all controllers" or "signal all brokers" would be a bonus and therefore not necessarily required. But if it is easy to achieve and doesn't add any additional cognitive load -- and at first glance it does seem so -- we should probably just support it.
Ron On Wed, Sep 20, 2023 at 6:15 PM Hailey Ni <h...@confluent.io.invalid> wrote: > > Hi Ron, > > Thank you very much for the comment. I think it makes sense to me that we > provide an even more specific way to kill individual controllers/brokers. > I have one question: does the command line for ZooKeeper cluster provide > such a way to kill individual controllers/brokers? > > Thanks, > Hailey > > On Tue, Sep 19, 2023 at 11:01 AM Ron Dagostino <rndg...@gmail.com> wrote: > > > Thanks for the KIP, Hailey. It will be nice to provide some > > fine-grained control for when people running the broker and controller > > this way want to stop just one of them. > > > > One thing that occurs to me is that in a development environment > > someone might want to run multiple controllers and multiple brokers > > all on the same box, and in that case they might want to actually stop > > just one controller or just one broker instead of all of them. So I'm > > wondering if maybe instead of supporting kafka-server-stop > > [--process.roles <value>] we might want to instead support > > kafka-server-stop [--required-config <name=value>]. If someone wanted > > to stop any/all controllers and not touch the broker(s) they could > > still achieve that by invoking kafka-server-stop --required-config > > process.roles=controller. But if they did want to stop a particular > > controller they could then also achieve that via kafka-server-stop > > --required-config node.id=1 (for example). What do you think? > > > > Ron > > > > On Thu, Sep 14, 2023 at 5:56 PM Hailey Ni <h...@confluent.io.invalid> > > wrote: > > > > > > Hi all, > > > > > > I would like to start the discussion about *KIP-979: Allow independently > > > stop KRaft controllers or brokers* < > > > > > https://cwiki.apache.org/confluence/display/KAFKA/KIP-979%3A+Allow+independently+stop+KRaft+controllers+or+brokers > > > > > > > It proposes adding an optional field "--process.roles <value>" in the > > > script to allow users to independently stop either KRaft broker processes > > > or controller processes. While in the past, all processes were killed > > using > > > a single script. > > > Please let me know if you have any questions or comments. Much > > appreciated. > > > > > > Thanks & Regards, > > > Hailey > >
