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Posted to dev@kafka.apache.org by Ismael Juma <is...@juma.me.uk> on 2019/11/08 01:34:17 UTC
[DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Hi all,
I think it's time to simplify our development environment by dropping
support for Scala 2.11. Please take a look at the proposal and
provide feedback:
https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
Ismael
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Lucas Bradstreet <lu...@confluent.io>.
This would be great. Maintaining Scala 2.11 support is reasonably painful.
Dropping support in 2.5 sounds good to me.
On Thu, 7 Nov 2019 at 17:35, Ismael Juma <is...@juma.me.uk> wrote:
> Hi all,
>
> I think it's time to simplify our development environment by dropping
> support for Scala 2.11. Please take a look at the proposal and
> provide feedback:
>
>
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
>
> Ismael
>
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Bill Bejeck <bb...@gmail.com>.
Thanks for the KIP Ismael.
+1 for me.
-Bill
On Fri, Nov 8, 2019 at 11:52 AM Ismael Juma <is...@juma.me.uk> wrote:
> I was hoping we'd get the documentation update in the 2.4 release notes so
> that it's not a surprise for 2.5 users.
>
> Ismael
>
> On Fri, Nov 8, 2019 at 8:40 AM Jose Armando Garcia Sancio <
> jsancio@confluent.io> wrote:
>
> > Hi Ismael,
> >
> > Thanks for the KIP. The KIP LGTM in general. In the KIP you mentioned:
> >
> > > Deprecate Scala 2.11 build in Kafka 2.4.
> >
> > Kafka 2.4 is in the RC process should we change this to 2.5?
> >
> > -Jose
> >
>
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Ismael Juma <is...@juma.me.uk>.
I was hoping we'd get the documentation update in the 2.4 release notes so
that it's not a surprise for 2.5 users.
Ismael
On Fri, Nov 8, 2019 at 8:40 AM Jose Armando Garcia Sancio <
jsancio@confluent.io> wrote:
> Hi Ismael,
>
> Thanks for the KIP. The KIP LGTM in general. In the KIP you mentioned:
>
> > Deprecate Scala 2.11 build in Kafka 2.4.
>
> Kafka 2.4 is in the RC process should we change this to 2.5?
>
> -Jose
>
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Jose Armando Garcia Sancio <js...@confluent.io>.
Hi Ismael,
Thanks for the KIP. The KIP LGTM in general. In the KIP you mentioned:
> Deprecate Scala 2.11 build in Kafka 2.4.
Kafka 2.4 is in the RC process should we change this to 2.5?
-Jose
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Ismael Juma <is...@juma.me.uk>.
Hi Charly,
Java versions have a much bigger impact. The Scala version for the Kafka
broker is mostly an implementation detail. The Kafka Streams library for
Scala is not as clear, but this is a recent library and I don't think it
makes sense to bump the major version for the whole project, we should
mention it in the upgrade notes instead.
Apache Kafka 3.0 is likely to happen as part of the KIP-500 (Built-in
consensus) effort and that may take a while. I don't think we should wait
for that to streamline the development process. As stated in the KIP, Scala
2.12 has been out for 3 years so people have had enough time to migrate.
Ismael
On Fri, Nov 8, 2019 at 1:07 AM charly molter <ch...@gmail.com>
wrote:
> This makes sense but as this is a breaking change shouldn’t it be happening
> in a major version?
> I believe that’s what was done with java7 support isn’t it?
>
> On Fri, 8 Nov 2019 at 01:56, Gwen Shapira <gw...@confluent.io> wrote:
>
> > About time :) Let's do it.
> >
> > On Thu, Nov 7, 2019 at 5:35 PM Ismael Juma <is...@juma.me.uk> wrote:
> > >
> > > Hi all,
> > >
> > > I think it's time to simplify our development environment by dropping
> > > support for Scala 2.11. Please take a look at the proposal and
> > > provide feedback:
> > >
> > >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
> > >
> > > Ismael
> >
> --
> Charly Molter
>
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by charly molter <ch...@gmail.com>.
This makes sense but as this is a breaking change shouldn’t it be happening
in a major version?
I believe that’s what was done with java7 support isn’t it?
On Fri, 8 Nov 2019 at 01:56, Gwen Shapira <gw...@confluent.io> wrote:
> About time :) Let's do it.
>
> On Thu, Nov 7, 2019 at 5:35 PM Ismael Juma <is...@juma.me.uk> wrote:
> >
> > Hi all,
> >
> > I think it's time to simplify our development environment by dropping
> > support for Scala 2.11. Please take a look at the proposal and
> > provide feedback:
> >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
> >
> > Ismael
>
--
Charly Molter
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by David Jacot <dj...@confluent.io>.
Thanks for the KIP. It is a big +1 from me.
David
On Fri, Nov 8, 2019 at 2:56 AM Gwen Shapira <gw...@confluent.io> wrote:
> About time :) Let's do it.
>
> On Thu, Nov 7, 2019 at 5:35 PM Ismael Juma <is...@juma.me.uk> wrote:
> >
> > Hi all,
> >
> > I think it's time to simplify our development environment by dropping
> > support for Scala 2.11. Please take a look at the proposal and
> > provide feedback:
> >
> >
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
> >
> > Ismael
>
Re: [DISCUSS] KIP-531: Drop support for Scala 2.11 in Kafka 2.5
Posted by Gwen Shapira <gw...@confluent.io>.
About time :) Let's do it.
On Thu, Nov 7, 2019 at 5:35 PM Ismael Juma <is...@juma.me.uk> wrote:
>
> Hi all,
>
> I think it's time to simplify our development environment by dropping
> support for Scala 2.11. Please take a look at the proposal and
> provide feedback:
>
> https://cwiki.apache.org/confluence/display/KAFKA/KIP-531%3A+Drop+support+for+Scala+2.11+in+Kafka+2.5
>
> Ismael