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From Robert Metzger <rmetz...@apache.org>
Subject Re: [VOTE] Release Apache Flink 1.3.0 (RC3)
Date Tue, 30 May 2017 16:10:45 GMT
Hi Till,
good catch! That is definitively a severe issue. Probably it didn't surface
yet, because
a) the code example in the documentation is using a new instance for each
state descriptor
b) people are using stateless serializers?
c) don't have the same state descriptor on the same machine

I see two options how to handle the situation
1) Cancel RC3 and do another vote (potentially with a 24 hrs vote time)
2) Release RC3 as 1.3.0 and start the vote for 1.3.1 right afterwards.


+ Pros and - cons for cancelling RC3
- The release would be delayed (not sure who's expecting the 1.3.0 to be
available on time)
- The bug has been there since many releases, probably no user is affected
and it was not introduced during the rel 1.3.0 cycle.
- There is a workaround for the issue
+ We would have a better feeling for the 1.3.0 release because there are no
known critical issues.

+ pro and - cons for releasing RC3:
+ there are some other "minor" issues that showed up during the 1.3.0
testing that could go into 1.3.1 (FLINK-6763
<https://issues.apache.org/jira/browse/FLINK-6763>, FLINK-6764
<https://issues.apache.org/jira/browse/FLINK-6764>) without too much
time-pressure (I'm happy to manage the 1.3.1 release and start it tomorrow)


I'm undecided between both options and more than happy to hear your opinion.



On Tue, May 30, 2017 at 4:18 PM, Till Rohrmann <trohrmann@apache.org> wrote:

> I might have found a blocking issue [1]. The problem is that a
> StateDescriptor cannot be shared by multiple subtasks because they don't
> duplicate their serializer. As a consequence, things break if you have a
> stateful serializer. The problem exists since 1.0. However, given that this
> issue is really hard to debug for the user and one can easily fall into
> this trap, I would like to fix it for the release.
>
> [1] https://issues.apache.org/jira/browse/FLINK-6775
>
> Cheers,
> Till
>
> On Tue, May 30, 2017 at 4:01 PM, Greg Hogan <code@greghogan.com> wrote:
>
> > +1 (binding)
> >
> > - verified source and binary signatures
> > - verified source and binary checksums
> > - verified LICENSEs
> > - verified NOTICEs
> > - built from source
> >
> > Greg
> >
> >
> > > On May 26, 2017, at 12:58 PM, Robert Metzger <rmetzger@apache.org>
> > wrote:
> > >
> > > Hi all,
> > >
> > > this is the second VOTEing release candidate for Flink 1.3.0
> > >
> > > The commit to be voted on:
> > > 760eea8a <http://git-wip-us.apache.org/repos/asf/flink/commit/760eea8a
> >
> > > (*http://git-wip-us.apache.org/repos/asf/flink/commit/760eea8a
> > > <http://git-wip-us.apache.org/repos/asf/flink/commit/760eea8a>*)
> > >
> > > Branch:
> > > release-1.3.0-rc3
> > >
> > > The release artifacts to be voted on can be found at:
> > > http://people.apache.org/~rmetzger/flink-1.3.0-rc3
> > >
> > >
> > > The release artifacts are signed with the key with fingerprint
> D9839159:
> > > http://www.apache.org/dist/flink/KEYS
> > >
> > > The staging repository for this release can be found at:
> > > *https://repository.apache.org/content/repositories/orgapach
> eflink-1122
> > > <https://repository.apache.org/content/repositories/orgapach
> eflink-1122
> > >*
> > >
> > > -------------------------------------------------------------
> > >
> > >
> > > The vote ends on Tuesday (May 30th), 7pm CET.
> > >
> > > [ ] +1 Release this package as Apache Flink 1.3.0
> > > [ ] -1 Do not release this package, because ...
> >
> >
>

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