For questions related to confluent, I think you'd better ask in their
channel.

Luke

On Fri, Mar 10, 2023 at 12:54 PM sunil chaudhari <
sunilmchaudhar...@gmail.com> wrote:

> Hi Luke,
> This docu is good.
> Does it apply for confluent as well?
>
>
>
> On Fri, 10 Mar 2023 at 8:47 AM, Luke Chen <show...@gmail.com> wrote:
>
> > Hi Zhenyu,
> >
> > Answering your question:
> >
> > > Should I simply
> > 1. download 3.4 binary
> > 2. stop ZK & Kafka service
> > 3. upgrade Kafka to 3.4
> > 4. start only Kafka service with KRaft server.properties
> >
> > That is not migrating, actually. That is just creating another kafka
> > cluster in KRaft mode.
> > The point for migration is to move metadata in ZK into KRaft controllers.
> > You can follow the guide here to do migration:
> > https://kafka.apache.org/documentation/#kraft_zk_migration
> >
> > Thank you.
> > Luke
> >
> > On Tue, Mar 7, 2023 at 11:07 PM Zhenyu Wang <stupidbea...@gmail.com>
> > wrote:
> >
> > > Hi Sunil,
> > >
> > > As mentioned earlier in my question, I have only one "combined" node as
> > > both controller and broker, and I totally accept downtime (stop
> service)
> > >
> > > So just want to ask for my case, single node, if I want to upgrade to
> 3.4
> > > then start service under KRaft (get rid of ZK), what would be the
> steps?
> > >
> > > Thanks~
> > >
> > > On Mon, Mar 6, 2023 at 11:49 PM sunil chaudhari <
> > > sunilmchaudhar...@gmail.com>
> > > wrote:
> > >
> > > > How will you achieve zero downtime of you stop zookeeper and kafka?
> > > > There must be some standard steps so that stop zookeeper one by one
> and
> > > > start kraft same time so that it will be migrated gradually.
> > > >
> > > >
> > > >
> > > > On Tue, 7 Mar 2023 at 9:26 AM, Zhenyu Wang <stupidbea...@gmail.com>
> > > wrote:
> > > >
> > > > > Hi team,
> > > > >
> > > > > Here is a question about KRaft from normal user, who starts to use
> > and
> > > > > learn Kafka since 3.2
> > > > >
> > > > > Last month Kafka 3.4, the first bridge release was available, and I
> > am
> > > > > considering to have a plan to use KRaft (get rid of ZK) since this
> > > > version
> > > > >
> > > > > Currently I am using 3.3.2 (upgrade from 3.2) with only one node,
> > which
> > > > is
> > > > > both controller & broker, even ZK is installed on this node too
> > (sorry
> > > I
> > > > > know it is not distributed and I will try to improve it with more
> > > > knowledge
> > > > > learned in future)
> > > > >
> > > > > When I read KIP-866, ZK to KRaft migration, from section Migration
> > > > > Overview, seems like the document is for multi-nodes with no or
> > almost
> > > no
> > > > > downtime, enable KRaft node by node; however my case accepts
> downtime
> > > > (one
> > > > > node -_-!!), just want to have Kafka upgrade to 3.4 then start
> > service
> > > > > under KRaft mode, make sure everything works well and no log lost
> > > > >
> > > > > Should I simply
> > > > > 1. download 3.4 binary
> > > > > 2. stop ZK & Kafka service
> > > > > 3. upgrade Kafka to 3.4
> > > > > 4. start only Kafka service with KRaft server.properties
> > > > >
> > > > > Or any other thing I need to pay attention to?
> > > > >
> > > > > If there is a documentation as guide that would be quite helpful
> > > > >
> > > > > Really appreciate
> > > > >
> > > >
> > >
> >
>

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