Hi Ron,

Yes, that's what I am proposing, yes.

Ismael

On Sat, Sep 30, 2023 at 2:30 PM Ron Dagostino <rndg...@gmail.com> wrote:

> Thanks, Ismael.  I think you are proposing a pair of mutually exclusive
> args --process.roles and --node.id, right?  I agree that is more
> user-friendly than the --required-config arg, and it comes at the possible
> expense of generality.  So that’s the tradeoff between the two, I think.
> No other config comes to mind now that we’ve identified these two.  I think
> the two specific and mutually exclusive parameters would be the way to go
> unless someone else identifies still more options that people might want.
>
> Did I get that right, or were you proposing something different?
>
> Ron
>
> > On Sep 30, 2023, at 10:42 AM, Ismael Juma <m...@ismaeljuma.com> wrote:
> >
> > Hi,
> >
> > Thanks for the KIP. I think this approach based on configs is a bit too
> > open ended and not very user friendly. Why don't we simply provide flags
> > for the things a user may care about? So far, it seems like we have two
> > good candidates (node id and process role). Are there any others?
> >
> > Ismael
> >
> >> On Fri, Sep 29, 2023 at 6:19 PM Hailey Ni <h...@confluent.io.invalid>
> wrote:
> >>
> >> Hi Ron,
> >>
> >> I think you made a great point, making the "name" arbitrary instead of
> >> hard-coding it will make the functionality much more flexible. I've
> updated
> >> the KIP and the code accordingly. Thanks for the great idea!
> >>
> >> Thanks,
> >> Hailey
> >>
> >>
> >>> On Fri, Sep 29, 2023 at 2:34 PM Ron Dagostino <rndg...@gmail.com>
> wrote:
> >>>
> >>> Thanks, Hailey.  Is there a reason to restrict it to just
> >>> process.roles and node.id?  Someone might want to do
> >>> "--required-config any.name=whatever.value", for example, and at first
> >>> glance I don't see a reason why the implementation should be any
> >>> different -- it seems it would probably be easier to not have to worry
> >>> about restricting to specific cases, actually.  WDYT?
> >>>
> >>> Ron
> >>>
> >>> On Fri, Sep 29, 2023 at 5:12 PM Hailey Ni <h...@confluent.io.invalid>
> >>> wrote:
> >>>>
> >>>> Updated. Please let me know if you have any additional comments. Thank
> >>> you!
> >>>>
> >>>> On Thu, Sep 21, 2023 at 3:02 PM Hailey Ni <h...@confluent.io> wrote:
> >>>>
> >>>>> Hi Ron. Thanks for the response. I agree with your point. I'll make
> >> the
> >>>>> corresponding changes in the KIP and KAFKA-15471
> >>>>> <https://issues.apache.org/jira/browse/KAFKA-15471>.
> >>>>>
> >>>>> On Thu, Sep 21, 2023 at 1:40 PM Ron Dagostino <rndg...@gmail.com>
> >>> wrote:
> >>>>>
> >>>>>> 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
> >>>>>>>>
> >>>>>>
> >>>>>
> >>>
> >>
>

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