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From Akira Ajisaka <aajis...@gmail.com>
Subject Re: [DISCUSS] Removal of old hamlet package in 3.3+ or 3.4+
Date Thu, 14 Feb 2019 06:18:49 GMT
Thanks Masatake for your comments.
Added the other Hadoop mailing lists to Cc.

> I'm +1 on making imcompatible change if this blocks another Java migration issues, while
I don't see strong reason to hurry as I see the patch of YARN-9279.
Agreed.

-Akira

On Sun, Feb 10, 2019 at 2:00 AM Masatake Iwasaki
<iwasakims@oss.nttdata.co.jp> wrote:
>
> Thanks for working on this, Akira.
>
>  > The only usage I can see is Apache Slider, however, the
>  > functionalities of Apache Slider have been merged into YARN.
>
> Do we have mailing lists other than yarn-dev to reach downstream developers?
> It would be better to make it confident that old hamlet of Hadoop 3 is
> used nowhere.
>
> I'm +1 on making imcompatible change if this blocks another Java
> migration issues,
> while I don't see strong reason to hurry as I see the patch of YARN-9279.
>
> Masatake Iwasaki
>
> On 2/3/19 18:10, Akira Ajisaka wrote:
> > Filed https://issues.apache.org/jira/browse/YARN-9279 to remove the
> > old hamlet package.
> >
> > -Akira
> >
> > 2019年1月21日(月) 13:08 Akira Ajisaka <aajisaka@apache.org>:
> >> Hi folks,
> >>
> >> I'd like to remove the deprecated hamlet package to reduce the maintenance cost.
> >>
> >> The old hamlet package has one character '_' and it is banned in Java
> >> 9+, so HADOOP-11875 deprecated this package and created a profile in
> >> pom.xml not to compile the package when the Java version is 9+. After
> >> the deprecation, we still have to maintenance the profile (see
> >> YARN-8123 and HADOOP-16046).
> >>
> >> The only usage I can see is Apache Slider, however, the
> >> functionalities of Apache Slider have been merged into YARN. Therefore
> >> I think there are no people using Slider with Hadoop 3.1+ and we can
> >> remove the package in 3.3+.
> >>
> >> Any thoughts?
> >>
> >> Regards,
> >> Akira
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>
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