I'll be there at quarter after

On Fri, May 8, 2020 at 06:51 Trevor Grant <trevor.d.gr...@gmail.com> wrote:

> Who can be there for this today?
>
> On Fri, Apr 24, 2020 at 8:31 AM Andrew Musselman <
> andrew.mussel...@gmail.com>
> wrote:
>
> > Alright, great; here's the link to join:
> >
> >
> https://hangouts.google.com/hangouts/_/calendar/YW5kcmV3Lm11c3NlbG1hbkBnbWFpbC5jb20.4tg9vg3t51gjlco0ebl5siim1s
> >
> > On Fri, Apr 24, 2020 at 02:19 Christofer Dutz <christofer.d...@c-ware.de
> >
> > wrote:
> >
> > > Hi all,
> > >
> > > just found the email with the time for the call today ... that's 19:00
> /
> > > 7pm here ... perfect.
> > > Would just need some information on how to join.
> > >
> > > Chris
> > >
> > >
> > > Am 20.04.20, 17:31 schrieb "Andrew Musselman" <
> > andrew.mussel...@gmail.com
> > > >:
> > >
> > >     Thanks Chris, will take a look at your PR.
> > >
> > >     I think we would be fine upgrading anything that is still making
> > >     improvements, probably makes sense to discuss Friday on our call if
> > > you can
> > >     make it.
> > >
> > >     Best
> > >     Andrew
> > >
> > >     On Mon, Apr 20, 2020 at 1:53 AM Christofer Dutz <
> > > christofer.d...@c-ware.de>
> > >     wrote:
> > >
> > >     > Hi Folks,
> > >     >
> > >     > so I've now tested the build with java 1.8, 9, 10 and they work
> ...
> > >     > 11 I'm getting errors about unsupported java major versions again
> > ...
> > >     > guess there's some old library version in there somewhere.
> > >     >
> > >     > But at least I managed to get you out of this 1.7 trap.
> > >     >
> > >     > Chris
> > >     >
> > >     >
> > >     > Am 20.04.20, 09:46 schrieb "Christofer Dutz" <
> > > christofer.d...@c-ware.de>:
> > >     >
> > >     >     Hi folks,
> > >     >
> > >     >     so I was now able to build (including all tests) with Java 8
> > and
> > > 9 ...
> > >     > currently trying 10 ...
> > >     >
> > >     >     Are there any objection that some maven dependencies get
> > updated
> > > to
> > >     > more recent versions? I mean ... the hbase-client you're using is
> > > more than
> > >     > 5 years old ...
> > >     >
> > >     >     Chris
> > >     >
> > >     >
> > >     >     Am 20.04.20, 00:29 schrieb "Andrew Musselman" <
> > >     > andrew.mussel...@gmail.com>:
> > >     >
> > >     >         No problem; would 10:00 a.m. Pacific next Friday the 24th
> > > work for
> > >     > you time
> > >     >         zone-wise?
> > >     >
> > >     >         On Sun, Apr 19, 2020 at 12:15 PM Christofer Dutz <
> > >     > christofer.d...@c-ware.de>
> > >     >         wrote:
> > >     >
> > >     >         > Sorry ...
> > >     >         >
> > >     >         > didn't see your response ... into Mahout too deep ;-)
> > >     >         > Guess we have to postpone this to sometime over the
> week.
> > >     >         >
> > >     >         > Chris
> > >     >         >
> > >     >         >
> > >     >         > Am 19.04.20, 19:56 schrieb "Andrew Musselman" <
> > >     > andrew.mussel...@gmail.com
> > >     >         > >:
> > >     >         >
> > >     >         >     *what time
> > >     >         >
> > >     >         >     On Sun, Apr 19, 2020 at 10:51 Andrew Musselman <
> > >     >         > andrew.mussel...@gmail.com>
> > >     >         >     wrote:
> > >     >         >
> > >     >         >     > I think it's safe to move to 1.8; yeah what tune
> is
> > > good
> > >     > for you?
> > >     >         > I'm in
> > >     >         >     > Pacific time zone and am flexible this afternoon.
> > >     >         >     >
> > >     >         >     > Trevor you free?
> > >     >         >     >
> > >     >         >     > On Sun, Apr 19, 2020 at 09:37 Christofer Dutz <
> > >     >         > christofer.d...@c-ware.de>
> > >     >         >     > wrote:
> > >     >         >     >
> > >     >         >     >> Yikes! ... well guess then I can't help you
> folks
> > > as it's
> > >     > almost
> > >     >         >     >> impossible to get my hands on a 1.7 version.
> > >     >         >     >>
> > >     >         >     >> What's preventing you from going to 1.8+?
> > >     >         >     >>
> > >     >         >     >> Any your build says 1.8 and above:
> > >     >         >     >>         <requireJavaVersion>
> > >     >         >     >>                   <version>[1.8,)</version>
> > >     >         >     >>                 </requireJavaVersion>
> > >     >         >     >>
> > >     >         >     >> Regarding the artifacts ... would it be ok to
> have
> > > the
> > >     > maven
> > >     >         > artifacts
> > >     >         >     >> using classifiers and perhaps the files in the
> > libs
> > > and
> > >     >         > distribution to
> > >     >         >     >> follow the typical scala sheme?
> > >     >         >     >>
> > >     >         >     >> Chris
> > >     >         >     >>
> > >     >         >     >> Am 19.04.20, 17:56 schrieb "Trevor Grant" <
> > >     > trevor.d.gr...@gmail.com
> > >     >         > >:
> > >     >         >     >>
> > >     >         >     >>     Yea, we have a requirement on 1.7. we need
> to
> > > get it
> > >     > up to 8,
> > >     >         > but
> > >     >         >     >>     considered that a different issue.
> > >     >         >     >>
> > >     >         >     >>     Maven throws warning, sbt breaks down
> entirely
> > > (when
> > >     > importing)-
> > >     >         >     >> hence why
> > >     >         >     >>     we were using a script to replace 2.11 w
> 2.12
> > >     >         >     >>
> > >     >         >     >>     On Sun, Apr 19, 2020, 10:33 AM Christofer
> > Dutz <
> > >     >         >     >> christofer.d...@c-ware.de>
> > >     >         >     >>     wrote:
> > >     >         >     >>
> > >     >         >     >>     > Well I have been compiling with various
> jdks
> > > from 8
> > >     > to 14.
> > >     >         > However I
> > >     >         >     >>     > noticed that if I select a jdk and start
> the
> > > build
> > >     > that the
> > >     >         > Scala
> > >     >         >     >> parts
> > >     >         >     >>     > Seefahrt to the version in my systems
> path.
> > > Which
> > >     > then
> > >     >         > results in
> > >     >         >     >> all sorts
> > >     >         >     >>     > of major version problems.
> > >     >         >     >>     >
> > >     >         >     >>     > For the Scalatest plugin I managed to have
> > it
> > > use
> > >     > the maven
> > >     >         >     >> java.home...
> > >     >         >     >>     > The Scala compiler is being a little
> > trickyer.
> > >     >         >     >>     >
> > >     >         >     >>     > Will continue this evening. Keep your
> > fingers
> > >     > crossed.
> > >     >         >     >>     >
> > >     >         >     >>     > Also does maven totally not like variables
> > in
> > >     > artifactids.
> > >     >         >     >>     >
> > >     >         >     >>     > Chris
> > >     >         >     >>     > ________________________________
> > >     >         >     >>     > Von: Trevor Grant <
> trevor.d.gr...@gmail.com
> > >
> > >     >         >     >>     > Gesendet: Sonntag, 19. April 2020 15:41
> > >     >         >     >>     > An: Mahout Dev List <
> dev@mahout.apache.org>
> > >     >         >     >>     > Betreff: Re: Hi ... need some help?
> > >     >         >     >>     >
> > >     >         >     >>     > Hey Chris,
> > >     >         >     >>     >
> > >     >         >     >>     > First of all- thank you so much for your
> > work
> > > so
> > >     > far.
> > >     >         >     >>     >
> > >     >         >     >>     > The build 100% currently works, the only
> > > issue is
> > >     > with
> > >     >         > releasing
> > >     >         >     >> binaries.
> > >     >         >     >>     > Are you compiling w 1.7? Not really sure
> why
> > >     > artifact IDs are
> > >     >         >     >> changing?
> > >     >         >     >>     > That's very strange.
> > >     >         >     >>     >
> > >     >         >     >>     > To answer your question regarding the
> > > community
> > >     > block- no, it
> > >     >         > is
> > >     >         >     >> not as if
> > >     >         >     >>     > there is a company that pays us to work on
> > > Mahout
> > >     > and the
> > >     >         > rest is
> > >     >         >     >>     > community. What it means is that while we
> > >     > appreciate those
> > >     >         > code
> > >     >         >     >>     > contributions, no one still actively
> > involved
> > > is
> > >     > maintaining
> > >     >         > them
> > >     >         >     >> and we
> > >     >         >     >>     > advise people to use at their own risk.
> The
> > >     > refactor to a
> > >     >         >     >> `community`
> > >     >         >     >>     > folder was meant to reflect the reality of
> > the
> > >     > situation.
> > >     >         >     >>     >
> > >     >         >     >>     > The only test issues I was aware of were
> > with
> > >     > Javadocs when
> > >     >         > trying
> > >     >         >     >> to do a
> > >     >         >     >>     > release with Java 1.8+ those would fail
> due
> > to
> > >     > formatting.
> > >     >         >     >>     >
> > >     >         >     >>     > I feel like you're hitting some unique
> > > issues, and
> > >     > maybe we
> > >     >         > could
> > >     >         >     >> help you
> > >     >         >     >>     > out / there may exist simple solutions.
> > >     >         >     >>     >
> > >     >         >     >>     > Thank you again for your help!
> > >     >         >     >>     >
> > >     >         >     >>     > tg
> > >     >         >     >>     >
> > >     >         >     >>     >
> > >     >         >     >>     >
> > >     >         >     >>     >
> > >     >         >     >>     > On Sun, Apr 19, 2020 at 2:17 AM Christofer
> > > Dutz <
> > >     >         >     >> christofer.d...@c-ware.de
> > >     >         >     >>     > >
> > >     >         >     >>     > wrote:
> > >     >         >     >>     >
> > >     >         >     >>     > > Hi folks,
> > >     >         >     >>     > >
> > >     >         >     >>     > > So yesterday I invested several hours in
> > > cleaning
> > >     > up your
> > >     >         > build.
> > >     >         >     >> I got
> > >     >         >     >>     > > quite far, currently trying to get the
> > > tests to
> > >     > pass. For
> > >     >         > some
> > >     >         >     >>     > > Scala-Java-major-version problems, but
> > > working on
> > >     > fixing
> > >     >         > them.
> > >     >         >     >>     > >
> > >     >         >     >>     > > However sind things will be different. I
> > > hope
> > >     > that's OK.
> > >     >         >     >> Especially with
> > >     >         >     >>     > > the artifact ids.
> > >     >         >     >>     > >
> > >     >         >     >>     > > Just as a question: does the build
> > > currently work
> > >     > at all?
> > >     >         >     >> Especially in
> > >     >         >     >>     > > the community block I had to fix quite a
> > > few API
> > >     > changes
> > >     >         > where
> > >     >         >     >> the code
> > >     >         >     >>     > in
> > >     >         >     >>     > > the blocks were for older versions of
> > > libraries.
> > >     >         >     >>     > >
> > >     >         >     >>     > > I hope I get some more tests to pass
> > today.
> > >     >         >     >>     > >
> > >     >         >     >>     > > Chris
> > >     >         >     >>     > > ________________________________
> > >     >         >     >>     > > Von: Andrew Musselman <a...@apache.org>
> > >     >         >     >>     > > Gesendet: Donnerstag, 16. April 2020
> 20:35
> > >     >         >     >>     > > An: Mahout Dev List <
> > dev@mahout.apache.org>
> > >     >         >     >>     > > Betreff: Re: Hi ... need some help?
> > >     >         >     >>     > >
> > >     >         >     >>     > > Looking forward to working on this with
> > you;
> > >     > thanks again!
> > >     >         >     >>     > >
> > >     >         >     >>     > > On Thu, Apr 16, 2020 at 11:09 AM
> > Christofer
> > > Dutz <
> > >     >         >     >>     > > christofer.d...@c-ware.de>
> > >     >         >     >>     > > wrote:
> > >     >         >     >>     > >
> > >     >         >     >>     > > > Hi Andrew,
> > >     >         >     >>     > > >
> > >     >         >     >>     > > > guess I'll start with the fork and
> > > contact you
> > >     > folks on
> > >     >         > slack.
> > >     >         >     >>     > > >
> > >     >         >     >>     > > > Chris
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >
> > >     >         >     >>     > > > Am 16.04.20, 19:43 schrieb "Andrew
> > > Musselman" <
> > >     >         > a...@apache.org>:
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     Chris, thank you for your help..
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     Yeah if you fork what's in master
> > you
> > > can
> > >     > see what
> > >     >         > state
> > >     >         >     >> it's in;
> > >     >         >     >>     > we
> > >     >         >     >>     > > > are in
> > >     >         >     >>     > > >     the #mahout channel in tge-asf
> slack
> > > and
> > >     > this is also
> > >     >         > a
> > >     >         >     >> fine way to
> > >     >         >     >>     > > > keep
> > >     >         >     >>     > > >     track of discussion.
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     We could file a JIRA ticket as
> well,
> > >     > however you
> > >     >         > prefer to
> > >     >         >     >> work.
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     Best
> > >     >         >     >>     > > >     Andrew
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     On Thu, Apr 16, 2020 at 06:59
> > > Christofer
> > >     > Dutz <
> > >     >         >     >>     > > > christofer.d...@c-ware.de>
> > >     >         >     >>     > > >     wrote:
> > >     >         >     >>     > > >
> > >     >         >     >>     > > >     > Hi Trevor,
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > ok ... first of all ... the
> Mahout
> > > PMC is
> > >     > defining a
> > >     >         >     >> "community
> > >     >         >     >>     > > >     > maintained" library which is not
> > >     > maintained by the
> > >     >         > mahout
> > >     >         >     >> PMC?!?!
> > >     >         >     >>     > > >     > I thought at Apache everything
> is
> > > about
> > >     > Community
> > >     >         > over
> > >     >         >     >> code. So
> > >     >         >     >>     > is
> > >     >         >     >>     > > a
> > >     >         >     >>     > > >     > company driving the
> non-community
> > > stuff?
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > But back to your build issues:
> > >     >         >     >>     > > >     > I had a look and I too
> encountered
> > > these
> > >     > comments
> > >     >         > and
> > >     >         >     >> remarks and
> > >     >         >     >>     > > >     > sometimes patterns I recognized
> > and
> > > could
> > >     > imagine
> > >     >         > why
> > >     >         >     >> they were
> > >     >         >     >>     > > > created.
> > >     >         >     >>     > > >     > Yes quite a bit of the build
> could
> > > be
> > >     > cleaned up and
> > >     >         >     >> simplified a
> > >     >         >     >>     > > > lot.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > So how about I create a fork and
> > > try to
> > >     > do a
> > >     >         > cleanup of
> > >     >         >     >> the
> > >     >         >     >>     > build.
> > >     >         >     >>     > > >     > Usually I also leave comments
> > about
> > > what
> > >     > I do as I
> > >     >         > hope
> > >     >         >     >> I'll not
> > >     >         >     >>     > be
> > >     >         >     >>     > > > the
> > >     >         >     >>     > > >     > only one maintaining a build and
> > >     > documenting things
> > >     >         > helps
> > >     >         >     >> people
> > >     >         >     >>     > > > feel more
> > >     >         >     >>     > > >     > confident.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > However in some cases I will
> have
> > >     > questions ... so
> > >     >         > would
> > >     >         >     >> someone
> > >     >         >     >>     > be
> > >     >         >     >>     > > >     > available on Slack for quick
> > > questions?
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > Usually switching to another
> build
> > > system
> > >     > does
> > >     >         > solve some
> > >     >         >     >>     > problems
> > >     >         >     >>     > > > ...
> > >     >         >     >>     > > >     > mostly the reason to switch is
> > that
> > > it
> > >     > solved the
> > >     >         > main
> > >     >         >     >> problem
> > >     >         >     >>     > that
> > >     >         >     >>     > > > you are
> > >     >         >     >>     > > >     > having with the old.
> > >     >         >     >>     > > >     > However you usually notice too
> > late
> > > that
> > >     > you get
> > >     >         > yourself
> > >     >         >     >> a lot
> > >     >         >     >>     > of
> > >     >         >     >>     > > > new
> > >     >         >     >>     > > >     > problems. I remember doing some
> > > contract
> > >     > work for an
> > >     >         >     >> insurance
> > >     >         >     >>     > > > company and
> > >     >         >     >>     > > >     > they were totally down
> Maven-road
> > > but
> > >     > then had to
> > >     >         > build
> > >     >         >     >> something
> > >     >         >     >>     > > > with SBT
> > >     >         >     >>     > > >     > ... in the end I compiled the
> > thing
> > > on my
> > >     > laptop,
> > >     >         > copied
> > >     >         >     >> it to a
> > >     >         >     >>     > > USB
> > >     >         >     >>     > > > stick
> > >     >         >     >>     > > >     > and told the people what was on
> > the
> > > stick
> > >     > and that
> > >     >         > I'll be
> > >     >         >     >>     > having a
> > >     >         >     >>     > > > coffee
> > >     >         >     >>     > > >     > and will be back in 30 minutes.
> > > When I
> > >     > came back
> > >     >         > the sick
> > >     >         >     >> wasn't
> > >     >         >     >>     > at
> > >     >         >     >>     > > > the
> > >     >         >     >>     > > >     > same place and the build problem
> > was
> > >     > "solved" ;-)
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > So I think it's quite good to
> > stick
> > > to
> > >     > maven ...
> > >     >         > that is
> > >     >         >     >> very
> > >     >         >     >>     > > > mature, you
> > >     >         >     >>     > > >     > can do almost everything you
> want
> > > with it
> > >     > and it
> > >     >         >     >> integrates
> > >     >         >     >>     > > > perfectly into
> > >     >         >     >>     > > >     > the Apache infrastructure.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > But that's just my opinion.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > So if you want me to help, I'll
> be
> > > happy
> > >     > to be of
> > >     >         >     >> assistance.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > Chris
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     > Am 16.04.20, 15:28 schrieb
> "Trevor
> > > Grant"
> > >     > <
> > >     >         >     >>     > > trevor.d.gr...@gmail.com
> > >     >         >     >>     > > > >:
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     Hey Christopher,
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     I would agree with what
> Stevo
> > >     > outlined but add
> > >     >         > some
> > >     >         >     >> more
> > >     >         >     >>     > > context
> > >     >         >     >>     > > > and a
> > >     >         >     >>     > > >     >     couple related JIRA issues.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     For 0.14.0 We did a big
> > > refactor and
> > >     > finally
> > >     >         > moved the
> > >     >         >     >>     > > MapReduce
> > >     >         >     >>     > > > based
> > >     >         >     >>     > > >     >     Mahout all into what we
> called
> > >     > "community/"
> > >     >         > that is
> > >     >         >     >> community
> > >     >         >     >>     > > >     > maintained,
> > >     >         >     >>     > > >     >     which is to say, we're not
> > >     > maintaining it
> > >     >         > anymore
> > >     >         >     >> (sunset
> > >     >         >     >>     > > began I
> > >     >         >     >>     > > >     > think in
> > >     >         >     >>     > > >     >     2015).
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     But all of our POMs were so
> > > huge and
> > >     > fat because
> > >     >         >     >> they'd been
> > >     >         >     >>     > > > layered up
> > >     >         >     >>     > > >     >     over the years by people
> > coming
> > > and
> > >     > going and
> > >     >         >     >> dropping in
> > >     >         >     >>     > > code. I
> > >     >         >     >>     > > >     > wouldn't
> > >     >         >     >>     > > >     >     call these drive- bys, its
> > just
> > > been
> > >     > over 10
> > >     >         > years
> > >     >         >     >> and people
> > >     >         >     >>     > > > come and
> > >     >         >     >>     > > >     > go.
> > >     >         >     >>     > > >     >     Such is the life of Apache
> > > Projects.
> > >     > So we had a
> > >     >         >     >> situation
> > >     >         >     >>     > > where
> > >     >         >     >>     > > > a lot
> > >     >         >     >>     > > >     > of
> > >     >         >     >>     > > >     >     the old Map Reduce stuff and
> > > the POMs
> > >     > were
> > >     >         > considered
> > >     >         >     >>     > > > "old-magic" no
> > >     >         >     >>     > > >     > one
> > >     >         >     >>     > > >     >     really knew how it was all
> > tied
> > >     > together, but we
> > >     >         >     >> didn't want
> > >     >         >     >>     > to
> > >     >         >     >>     > > > mess
> > >     >         >     >>     > > >     > with
> > >     >         >     >>     > > >     >     it for fear of breaking
> > > something in
> > >     > the "new"
> > >     >         > Mahout
> > >     >         >     >> (aka
> > >     >         >     >>     > > > Samsar)
> > >     >         >     >>     > > >     > which is
> > >     >         >     >>     > > >     >     the Scala/Spark based
> library
> > > that it
> > >     > is now*
> > >     >         > (to
> > >     >         >     >> others in
> > >     >         >     >>     > the
> > >     >         >     >>     > > >     > community:
> > >     >         >     >>     > > >     >     I know it runs on other
> > > engines, but
> > >     > for
> > >     >         > simplicity,
> > >     >         >     >> I'm just
> > >     >         >     >>     > > > calling
> > >     >         >     >>     > > >     > it
> > >     >         >     >>     > > >     >     "runs-on-spark").
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     For 0.14.0 We decided to
> trim
> > > out as
> > >     > much of
> > >     >         > that
> > >     >         >     >> which was
> > >     >         >     >>     > > > possible.
> > >     >         >     >>     > > >     > We
> > >     >         >     >>     > > >     >     did some major liposuction
> on
> > > POMs,
> > >     > re organized
> > >     >         >     >> things, etc.
> > >     >         >     >>     > > > This was
> > >     >         >     >>     > > >     > done
> > >     >         >     >>     > > >     >     by commenting out a section,
> > > then
> > >     > seeing if it
> > >     >         > would
> > >     >         >     >> still
> > >     >         >     >>     > > > build. So
> > >     >         >     >>     > > >     > the
> > >     >         >     >>     > > >     >     current release
> > >     >         >     >>     > > >     >     _does_ build. And aside for
> > > some CLI
> > >     > driver
> > >     >         > issues
> > >     >         >     >> which are
> > >     >         >     >>     > > > outlined
> > >     >         >     >>     > > >     > in
> > >     >         >     >>     > > >     >     [1], the project runs fairly
> > > smooth.
> > >     > (An SBT
> > >     >         > would
> > >     >         >     >> probably
> > >     >         >     >>     > > > solve [1],
> > >     >         >     >>     > > >     > I
> > >     >         >     >>     > > >     >     believe Pat Ferrel has made
> > his
> > > own
> > >     > SBT script
> > >     >         > to
> > >     >         >     >> compile
> > >     >         >     >>     > > > Mahout, which
> > >     >         >     >>     > > >     >     solved that problem for
> them).
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     The issue we ran into with
> the
> > >     > releases (and the
> > >     >         >     >> reason I
> > >     >         >     >>     > think
> > >     >         >     >>     > > > you're
> > >     >         >     >>     > > >     >     here), is that we also
> > somewhere
> > >     > along the line
> > >     >         >     >> commented out
> > >     >         >     >>     > > > something
> > >     >         >     >>     > > >     >     that was important to the
> > > release
> > >     > process.
> > >     >         > Hence why
> > >     >         >     >> 0.14.0
> > >     >         >     >>     > > > released
> > >     >         >     >>     > > >     > source
> > >     >         >     >>     > > >     >     only.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     Since 2008, there has been a
> > > lot of
> > >     > great work
> > >     >         > on
> > >     >         >     >> generating
> > >     >         >     >>     > > > plugins
> > >     >         >     >>     > > >     > for
> > >     >         >     >>     > > >     >     doing Apache releases.
> Instead
> > > of the
> > >     > awkward
> > >     >         > hacks
> > >     >         >     >> that made
> > >     >         >     >>     > > up
> > >     >         >     >>     > > > the
> > >     >         >     >>     > > >     > old
> > >     >         >     >>     > > >     >     poms (literally comments
> that
> > > said,
> > >     > "this is a
> > >     >         > hack,
> > >     >         >     >> there's
> > >     >         >     >>     > > > supposedly
> > >     >         >     >>     > > >     >     something better coming from
> > > ..."
> > >     > dated like
> > >     >         > 2012),
> > >     >         >     >> we would
> > >     >         >     >>     > > > like to
> > >     >         >     >>     > > >     > do it
> > >     >         >     >>     > > >     >     the "right way" and
> > incorporate
> > > the
> > >     > appropriate
> > >     >         >     >> plugins.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     Refactoring to SBT was _one_
> > > proposed
> > >     > solution.
> > >     >         > We're
> > >     >         >     >> also OK
> > >     >         >     >>     > > >     > continuing to
> > >     >         >     >>     > > >     >     use Maven, and I agree with
> > > what you
> > >     > said about
> > >     >         > the
> > >     >         >     >> cross
> > >     >         >     >>     > > > compiling. We
> > >     >         >     >>     > > >     >     actually have a script that
> > just
> > >     > changes the
> > >     >         > scala
> > >     >         >     >> version.
> > >     >         >     >>     > We
> > >     >         >     >>     > > > tried
> > >     >         >     >>     > > >     > using
> > >     >         >     >>     > > >     >     the classifiers but there
> were
> > > issues
> > >     > in SBT,
> > >     >         > but the
> > >     >         >     >> way
> > >     >         >     >>     > > you're
> > >     >         >     >>     > > >     > proposing
> > >     >         >     >>     > > >     >     sounds a lot more pro than
> the
> > > route
> > >     > we were
> > >     >         > trying
> > >     >         >     >> for.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     That said- we'd be OK just
> > > releasing
> > >     > one
> > >     >         > scala/spark
> > >     >         >     >> version
> > >     >         >     >>     > at
> > >     >         >     >>     > > > a time.
> > >     >         >     >>     > > >     >     But getting the convenience
> > > binaries
> > >     > to
> > >     >         >     >> release/publish would
> > >     >         >     >>     > > be
> > >     >         >     >>     > > > a
> > >     >         >     >>     > > >     > major
> > >     >         >     >>     > > >     >     first step.
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     Also, we really appreciate
> the
> > > help,
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     tg
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     [1]
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >
> > >     >         >     >>     > >
> > >     >         >     >>     >
> > >     >         >     >>
> > >     >         >
> > >     >
> > >
> >
> https://issues.apache.org/jira/projects/MAHOUT/issues/MAHOUT-2093?filter=allopenissues
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     On Thu, Apr 16, 2020 at 4:50
> > AM
> > >     > Christofer Dutz
> > >     >         > <
> > >     >         >     >>     > > >     > christofer.d...@c-ware.de>
> > >     >         >     >>     > > >     >     wrote:
> > >     >         >     >>     > > >     >
> > >     >         >     >>     > > >     >     > Hi Stevo,
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > so let me summarize what I
> > >     > understood:
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > - There are some modules
> in
> > > mahout
> > >     > that are
> > >     >         > built
> > >     >         >     >> with
> > >     >         >     >>     > Scala,
> > >     >         >     >>     > > > some
> > >     >         >     >>     > > >     > with
> > >     >         >     >>     > > >     >     > java and some with both
> (At
> > > least
> > >     > that's what
> > >     >         > I see
> > >     >         >     >> when
> > >     >         >     >>     > > > checking
> > >     >         >     >>     > > >     > out the
> > >     >         >     >>     > > >     >     > project)
> > >     >         >     >>     > > >     >     > - The current build uses
> > > Scala 2.11
> > >     > to build
> > >     >         > the
> > >     >         >     >> Scala
> > >     >         >     >>     > code.
> > >     >         >     >>     > > >     >     > - The resulting libraries
> > are
> > > only
> > >     > compatible
> > >     >         > with
> > >     >         >     >> Scala
> > >     >         >     >>     > 2.11
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > Now you want to also
> publish
> > >     > versions
> > >     >         > compatible
> > >     >         >     >> with Scala
> > >     >         >     >>     > > > 2.12?
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > If that's the case I think
> > > Maven
> > >     > could easily
> > >     >         > add
> > >     >         >     >> multiple
> > >     >         >     >>     > > > executions
> > >     >         >     >>     > > >     >     > where each compile
> compiles
> > to
> > >     > different
> > >     >         > output
> > >     >         >     >>     > directories:
> > >     >         >     >>     > > >     >     > - Java --> target/classes
> > >     >         >     >>     > > >     >     > - Scala 2.11 -->
> > > target/classes-2.11
> > >     >         >     >>     > > >     >     > - Scala 2.12 -->
> > > target/classes-2.12
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > Then the packaging would
> > also
> > > need
> > >     > a second
> > >     >         >     >> execution ...
> > >     >         >     >>     > > each
> > >     >         >     >>     > > > of the
> > >     >         >     >>     > > >     >     > executions bundling the
> > > classes and
> > >     > the
> > >     >         >     >> corresponding scala
> > >     >         >     >>     > > > output.
> > >     >         >     >>     > > >     >     > Ideally I would probably
> use
> > > maven
> > >     >         > classifiers to
> > >     >         >     >>     > distinguish
> > >     >         >     >>     > > > the
> > >     >         >     >>     > > >     >     > artifacts.
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > <dependency>
> > >     >         >     >>     > > >     >     >
> > >     >  <groupId>org.apache.mahout</groupId>
> > >     >         >     >>     > > >     >     >
> > >     >  <artifactId>mahout-spark</artifactId>
> > >     >         >     >>     > > >     >     >
> > >  <version>14.1-SNAPSHOT</version>
> > >     >         >     >>     > > >     >     >
> > >  <classifier>2.11</classifier>
> > >     >         >     >>     > > >     >     > </dependency>
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > Then it should all work
> in a
> > > normal
> > >     > maven
> > >     >         > build. In
> > >     >         >     >> the
> > >     >         >     >>     > > >     > distributions you
> > >     >         >     >>     > > >     >     > could also filter the
> > versions
> > >     > according to
> > >     >         > their
> > >     >         >     >>     > > classifiers.
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > So if this is the case, I
> > > could
> > >     > help you with
> > >     >         > this.
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > Chris
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     > Am 16.04.20, 09:39 schrieb
> > > "Stevo
> > >     > Slavić" <
> > >     >         >     >>     > ssla...@gmail.com
> > >     >         >     >>     > > >:
> > >     >         >     >>     > > >     >     >
> > >     >         >     >>     > > >     >     >     Disclaimer: I'm not
> > active
> > >     > Mahout
> > >     >         > maintainer
> > >     >         >     >> for quite
> > >     >         >     >>     > a
> > >     >         >     >>     > > > while,
> > >     >         >     >>     > > >     > have
> > >     >         >     >>     > > >     >     > some
> > >     >         >     >>     > > >     >     >     historical
> perspective,
> > > take it
> > >     > with a
> > >     >         > grain of
> > >     >         >     >> salt,
> > >     >         >     >>     > > > could be
> > >     >         >     >>     > > >     > I'm
> > >     >         >     >>     > > >

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