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From Bowen Li <bowen...@offerupnow.com>
Subject Re: [POLL] Who still uses Java 7 with Flink ?
Date Wed, 12 Jul 2017 18:53:19 GMT
+1 for dropping Java 7

On Wed, Jul 12, 2017 at 9:04 AM, Gyula Fóra <gyula.fora@gmail.com> wrote:

> +1 for dropping 1.7 from me as well.
>
> Gyula
>
> On Wed, Jul 12, 2017, 17:53 Ted Yu <yuzhihong@gmail.com> wrote:
>
> > +1 on dropping support for Java 1.7
> >
> > -------- Original message --------
> > From: Robert Metzger <rmetzger@apache.org>
> > Date: 7/12/17 8:36 AM (GMT-08:00)
> > To: dev@flink.apache.org
> > Cc: user <user@flink.apache.org>
> > Subject: Re: [POLL] Who still uses Java 7 with Flink ?
> >
> > +1 to drop Java 7 support
> >
> > I believe that we can move to Java 8 for the argument you've stated.
> > ElasticSearch 5, Spark 2.2  require Java 8 already, Hadoop 3.0.0 will
> > require it as well.
> >
> > On Wed, Jul 12, 2017 at 4:02 PM, Driesprong, Fokko <fokko@driesprong.frl
> >
> > wrote:
> >
> >> Hi,
> >>
> >> I would be in favor of dropping Java 7 as we don't use it in our hadoop
> >> infra (and we are a bank). Also, Spark 2.2 has been released today,
> >> which doesn't
> >> support Java 7 <http://spark.apache.org/releases/spark-release-2-2-0.
> html
> >> >
> >> anymore, and Flink should not lack behind :-)
> >>
> >> Cheers, Fokko
> >>
> >> 2017-07-12 15:56 GMT+02:00 Stephan Ewen <sewen@apache.org>:
> >>
> >> > Bumping this thread again.
> >> >
> >> > There are several strong points for dropping Java 7 support, apart
> from
> >> the
> >> > fact that it is not maintained
> >> >
> >> >   - We could really use the Java 8 default methods feature in
> >> interfaces to
> >> > evolve the API without breaking backwards compatibility
> >> >
> >> >   - Easier build setup for Scala 2.12 (which requires Java 8), no need
> >> to
> >> > manage the tricky combinations of Java / Scala versions
> >> >
> >> >   - Ability to use vanilla Akka (rather than Flakka) which requires
> >> Java 8.
> >> >     - Fewer problems for users that use Akka in the Flink applications
> >> >     - Flakka currently does not support Scala 2.12
> >> >     - Newer Akka versions shade protobuf, which is important
> >> >
> >> > I think these together make a pretty good case for bumping the
> required
> >> > Java version to Java 8.
> >> >
> >> > It would just help both Flink users (dependency management, Scala
> >> versions)
> >> > and developers (build simplification) a lot.
> >> > Unless we see users stepping forward and making a case that it will be
> >> > impossible for them to upgrade to Java 8, I suggest to go forward with
> >> > this.
> >> >
> >> > Best,
> >> > Stephan
> >> >
> >> >
> >> >
> >> > On Thu, Jun 8, 2017 at 9:36 PM, Haohui Mai <ricetons@gmail.com>
> wrote:
> >> >
> >> > > +1
> >> > >
> >> > > There are several high impacts security vulnerabilities in JDK 7 and
> >> will
> >> > > not be addressed.
> >> > >
> >> > > As a result we completely moved away from JDK 7.
> >> > >
> >> > > +1 on separating the tasks of supporting Scala 2.12 and JDK 8 in two
> >> > steps.
> >> > >
> >> > >
> >> > > On Thu, Jun 8, 2017 at 9:53 AM Greg Hogan <code@greghogan.com>
> wrote:
> >> > >
> >> > > > Is this not two different issues?
> >> > > > - adding builds for Scala 2.12
> >> > > > - upgrading to Java version 1.8
> >> > > >
> >> > > > It may be time to switch, but I haven’t seen anything in
> FLINK-5005
> >> > which
> >> > > > prevents simply adding Scala 2.12 to our supported build matrix
> and
> >> > > > continuing to build 2.10 / 2.11 against Java 1.7.
> >> > > >
> >> > > > Greg
> >> > > >
> >> > > >
> >> > > > > On Jun 8, 2017, at 11:39 AM, Robert Metzger <
> rmetzger@apache.org>
> >> > > wrote:
> >> > > > >
> >> > > > > Hi all,
> >> > > > >
> >> > > > > as promised in March, I want to revive this discussion!
> >> > > > >
> >> > > > > Our users are begging for Scala 2.12 support [1], migration
to
> >> Akka
> >> > 2.4
> >> > > > would solve a bunch of shading / dependency issues (Akka 2.4
will
> >> > remove
> >> > > > Akka's protobuf dependency [2][3]) and generally Java 8's new
> >> language
> >> > > > features all speak for dropping Java 7.
> >> > > > >
> >> > > > > Java 8 has been released in March, 2014. Java 7 is unsupported
> >> since
> >> > > > June 2016.
> >> > > > >
> >> > > > > So what's the feeling in the community regarding the step?
> >> > > > >
> >> > > > >
> >> > > > > [1] https://issues.apache.org/jira/browse/FLINK-5005# <
> >> > > > https://issues.apache.org/jira/browse/FLINK-5005#>
> >> > > > > [2] https://issues.apache.org/jira/browse/FLINK-5989 <
> >> > > > https://issues.apache.org/jira/browse/FLINK-5989>
> >> > > > > [3]
> >> > > > https://issues.apache.org/jira/browse/FLINK-3211?
> >> > > focusedCommentId=15274018&page=com.atlassian.jira.
> >> > > plugin.system.issuetabpanels:comment-tabpanel#comment-15274018
> >> > > > <
> >> > > > https://issues.apache.org/jira/browse/FLINK-3211?
> >> > > focusedCommentId=15274018&page=com.atlassian.jira.
> >> > > plugin.system.issuetabpanels:comment-tabpanel#comment-15274018
> >> > > > >
> >> > > > >
> >> > > > >
> >> > > > > On Thu, Mar 23, 2017 at 2:42 PM, Theodore Vasiloudis <
> >> > > > theodoros.vasiloudis@gmail.com <mailto:
> >> theodoros.vasiloudis@gmail.com
> >> > >>
> >> > > > wrote:
> >> > > > > Hello all,
> >> > > > >
> >> > > > > I'm sure you've considered this already, but what this data
does
> >> not
> >> > > > include is all the potential future users,
> >> > > > > i.e. slower moving organizations (banks etc.) which could
be on
> >> Java
> >> > 7
> >> > > > still.
> >> > > > >
> >> > > > > Whether those are relevant is up for debate.
> >> > > > >
> >> > > > > Cheers,
> >> > > > > Theo
> >> > > > >
> >> > > > > On Thu, Mar 23, 2017 at 12:14 PM, Robert Metzger <
> >> > rmetzger@apache.org
> >> > > > <mailto:rmetzger@apache.org>> wrote:
> >> > > > > Yeah, you are right :)
> >> > > > > I'll put something in my calendar for end of May.
> >> > > > >
> >> > > > > On Thu, Mar 23, 2017 at 12:12 PM, Greg Hogan <
> code@greghogan.com
> >> > > > <mailto:code@greghogan.com>> wrote:
> >> > > > > Robert,
> >> > > > >
> >> > > > > Thanks for the report. Shouldn’t we be revisiting this
decision
> at
> >> > the
> >> > > > beginning of the new release cycle rather than near the end?
There
> >> is
> >> > > > currently little cost to staying with Java 7 since no Flink code
> or
> >> > pull
> >> > > > requests have been written for Java 8.
> >> > > > >
> >> > > > > Greg
> >> > > > >
> >> > > > >
> >> > > > >
> >> > > > >> On Mar 23, 2017, at 6:37 AM, Robert Metzger <
> rmetzger@apache.org
> >> > > > <mailto:rmetzger@apache.org>> wrote:
> >> > > > >>
> >> > > > >> Looks like 9% on twitter and 24% on the mailing list
are still
> >> using
> >> > > > Java 7.
> >> > > > >>
> >> > > > >> I would vote to keep supporting Java 7 for Flink 1.3
and then
> >> > revisit
> >> > > > once we are approaching 1.4 in September.
> >> > > > >>
> >> > > > >> On Thu, Mar 16, 2017 at 8:00 AM, Bowen Li <
> >> bowen.li@offerupnow.com
> >> > > > <mailto:bowen.li@offerupnow.com>> wrote:
> >> > > > >> There's always a tradeoff we need to make. I'm in favor
of
> >> upgrading
> >> > > to
> >> > > > Java 8 to bring in all new Java features.
> >> > > > >>
> >> > > > >> The common way I've seen (and I agree) other software
upgrading
> >> > major
> >> > > > things like this is 1) upgrade for next big release without
> backward
> >> > > > compatibility and notify everyone 2) maintain and patch current,
> >> > old-tech
> >> > > > compatible version at a reasonably limited scope. Building
> backward
> >> > > > compatibility is too much for an open sourced project
> >> > > > >>
> >> > > > >>
> >> > > > >>
> >> > > > >> On Wed, Mar 15, 2017 at 7:10 AM, Robert Metzger <
> >> > rmetzger@apache.org
> >> > > > <mailto:rmetzger@apache.org>> wrote:
> >> > > > >> I've put it also on our Twitter account:
> >> > > > >> https://twitter.com/ApacheFlink/status/842015062667755521
<
> >> > > > https://twitter.com/ApacheFlink/status/842015062667755521>
> >> > > > >>
> >> > > > >> On Wed, Mar 15, 2017 at 2:19 PM, Martin Neumann <
> >> > martin.neumann@ri.se
> >> > > > <mailto:martin.neumann@ri.se>>
> >> > > > >> wrote:
> >> > > > >>
> >> > > > >> > I think this easier done in a straw poll than in
an email
> >> > > > conversation.
> >> > > > >> > I created one at: http://www.strawpoll.me/12535073
<
> >> > > > http://www.strawpoll.me/12535073>
> >> > > > >> > (Note that you have multiple choices.)
> >> > > > >> >
> >> > > > >> >
> >> > > > >> > Though I prefer Java 8 most of the time I have
to work on
> Java
> >> 7.
> >> > A
> >> > > > lot of
> >> > > > >> > the infrastructure I work on still runs Java 7,
one of the
> >> > > companies I
> >> > > > >> > build a prototype for a while back just updated
to Java 7 2
> >> years
> >> > > > ago. I
> >> > > > >> > doubt we can ditch Java 7 support any time soon
if we want to
> >> make
> >> > > it
> >> > > > easy
> >> > > > >> > for companies to use Flink.
> >> > > > >> >
> >> > > > >> > cheers Martin
> >> > > > >> >
> >> > > > >> > //PS sorry if this gets sent twice, we just migrated
to a new
> >> mail
> >> > > > system
> >> > > > >> > and a lot of things are broken
> >> > > > >> >
> >> > > > >> > ________________________________
> >> > > > >> > From: Stephan Ewen <sewen@apache.org <mailto:
> sewen@apache.org
> >> >>
> >> > > > >> > Sent: Wednesday, March 15, 2017 12:30:24 PM
> >> > > > >> > To: user@flink.apache.org <mailto:user@flink.apache.org>;
> >> > > > dev@flink.apache.org <mailto:dev@flink.apache.org>
> >> > > > >> > Subject: [POLL] Who still uses Java 7 with Flink
?
> >> > > > >> >
> >> > > > >> > Hi all!
> >> > > > >> >
> >> > > > >> > I would like to get a feeling how much Java 7 is
still being
> >> used
> >> > > > among
> >> > > > >> > Flink users.
> >> > > > >> >
> >> > > > >> > At some point, it would be great to drop Java 7
support and
> >> make
> >> > use
> >> > > > of
> >> > > > >> > Java 8's new features, but first we would need
to get a
> feeling
> >> > how
> >> > > > much
> >> > > > >> > Java 7 is still used.
> >> > > > >> >
> >> > > > >> > Would be happy if users on Java 7 respond here,
or even users
> >> that
> >> > > > have
> >> > > > >> > some insights into how widespread they think Java
7 still is.
> >> > > > >> >
> >> > > > >> > Thanks,
> >> > > > >> > Stephan
> >> > > > >> >
> >> > > > >> >
> >> > > > >> >
> >> > > > >> >
> >> > > > >> >
> >> > > > >>
> >> > > > >>
> >> > > > >
> >> > > > >
> >> > > > >
> >> > > > >
> >> > > >
> >> > > >
> >> > >
> >> >
> >>
> >
> >
>

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