Hi All!

I have found the following issue today which might be considered a blocker
for this release as well:

https://issues.apache.org/jira/browse/FLINK-20221

Could someone please quickly provide a second set of eyes and confirm that
this is indeed a big problem? :)

Thank you!
Gyula

On Wed, Nov 18, 2020 at 5:12 AM Xintong Song <tonysong...@gmail.com> wrote:

> Hi devs,
>
> Updates on the progress of preparing the 1.11.3 release.
>
> We are approaching the creation of our first release candidate. Thanks all
> for the efforts so far.
>
> # Ongoing threads
>
>    - *FLIP-27 backportings:* 74 out of 102 commits are already backported.
>    Stephan and Becket are actively working on this.
>    - *Blockers:* There are 2 remaining blockers, both have been fixed on
>    the master branch and should be backported along with the FLIP-27
> changes.
>
> As soon as the above threads are done, we will create our first release
> candidate. If there's any other issues that you believe should be a release
> blocker, please reach out to either me or Gordon.
>
> # JIRA version
>
> Version 1.11.4 has been created on JIRA. I've already tagged some of the
> tickets with the new fix version. Please feel free to continue with the
> efforts and merge once they are ready. I'll double check and update the fix
> versions before the release.
>
> Thank you~
>
> Xintong Song
>
>
>
> On Thu, Nov 12, 2020 at 1:31 PM Xintong Song <tonysong...@gmail.com>
> wrote:
>
> > Thanks for the notice and fix, Roman.
> >
> > Thank you~
> >
> > Xintong Song
> >
> >
> >
> > On Wed, Nov 11, 2020 at 5:53 PM Khachatryan Roman <
> > khachatryan.ro...@gmail.com> wrote:
> >
> >> Hi,
> >>
> >> I'd like FLINK-20079 [1] to be merged into 1.11 and included in 1.11.3.
> >>
> >> [1] https://issues.apache.org/jira/browse/FLINK-20079
> >>
> >> Regards,
> >> Roman
> >>
> >>
> >> On Tue, Nov 10, 2020 at 8:21 AM Xintong Song <tonysong...@gmail.com>
> >> wrote:
> >>
> >> > Thanks for the notice, Dian.
> >> >
> >> > Thank you~
> >> >
> >> > Xintong Song
> >> >
> >> >
> >> >
> >> > On Tue, Nov 10, 2020 at 10:19 AM Dian Fu <dian0511...@gmail.com>
> wrote:
> >> >
> >> > > Hi Xintong,
> >> > >
> >> > > I want to bring one more issue to your attention [1]. The test case
> >> > > UnalignedCheckpointCompatibilityITCase.test failed several times in
> >> the
> >> > > last nightly test of release-1.11. We need to figure out if it's
> just
> >> an
> >> > > instable test or caused by recent changes.
> >> > >
> >> > > [1] https://issues.apache.org/jira/browse/FLINK-20065
> >> > >
> >> > > > 在 2020年11月10日,上午9:24,Xintong Song <tonysong...@gmail.com> 写道:
> >> > > >
> >> > > > Thanks for the replies.
> >> > > >
> >> > > > Thank you~
> >> > > >
> >> > > > Xintong Song
> >> > > >
> >> > > >
> >> > > >
> >> > > > On Tue, Nov 10, 2020 at 1:09 AM Becket Qin <becket....@gmail.com>
> >> > wrote:
> >> > > >
> >> > > >> Hi Xintong,
> >> > > >>
> >> > > >> Thanks for driving the release. Just want to sync up on the
> FLIP-27
> >> > > >> backporting. Stephan and I are still trying to backport a bunch
> of
> >> > > patches
> >> > > >> of Source to 1.11.3. Including:
> >> > > >>
> >> > > >> [FLINK-19698][connector/common] Add a close() method to the
> >> > SplitReader.
> >> > > >> [FLINK-19717] SourceReaderBase.pollNext may return END_OF_INPUT
> if
> >> > > >> SplitReader.fetch throws
> >> > > >> [FLINK-19535] [connector/common] Avoid failing a job multiple
> >> times in
> >> > > >> SourceCoordinator.
> >> > > >> [FLINK-19265] [FLINK-20049][core] Source API final adjustments.
> >> > > >>
> >> > > >> and a few more fixes.
> >> > > >>
> >> > > >> We are currently trying to fix them in 1.12 first so it might
> take
> >> a
> >> > > little
> >> > > >> longer to backport them to 1.11.3. I think it will probably take
> >> us a
> >> > > few
> >> > > >> more days to finish the backport. So that would roughly be the
> end
> >> of
> >> > > this
> >> > > >> week.
> >> > > >>
> >> > > >> Thanks,
> >> > > >>
> >> > > >> Jiangjie (Becket) Qin
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >>
> >> > > >> On Mon, Nov 9, 2020 at 9:57 PM Till Rohrmann <
> trohrm...@apache.org
> >> >
> >> > > wrote:
> >> > > >>
> >> > > >>> Yes, I've downgraded FLINK-19816 to critical.
> >> > > >>>
> >> > > >>> Cheers,
> >> > > >>> Till
> >> > > >>>
> >> > > >>> On Mon, Nov 9, 2020 at 10:19 AM Xintong Song <
> >> tonysong...@gmail.com>
> >> > > >>> wrote:
> >> > > >>>
> >> > > >>>> Thanks for the notice, Till.
> >> > > >>>>
> >> > > >>>> I just checked and found FLINK-20033 is already fixed. Shall we
> >> also
> >> > > >>>> downgrade FLINK-19816 to `Critical`?
> >> > > >>>>
> >> > > >>>> Thank you~
> >> > > >>>>
> >> > > >>>> Xintong Song
> >> > > >>>>
> >> > > >>>>
> >> > > >>>>
> >> > > >>>> On Mon, Nov 9, 2020 at 4:42 PM Till Rohrmann <
> >> trohrm...@apache.org>
> >> > > >>> wrote:
> >> > > >>>>
> >> > > >>>>> I would like to bring one more critical issue to your
> attention
> >> > which
> >> > > >>> is
> >> > > >>>>> FLINK-20033 [1]. I believe that this issue is actually causing
> >> what
> >> > > >> has
> >> > > >>>>> been reported in FLINK-19816 [2]. I hope to have it fixed by
> the
> >> > end
> >> > > >> of
> >> > > >>>>> today. Once FLINK-20033 is fixed, I think that we don't have
> to
> >> > block
> >> > > >>> the
> >> > > >>>>> release on FLINK-19816.
> >> > > >>>>>
> >> > > >>>>> [1] https://issues.apache.org/jira/browse/FLINK-20033
> >> > > >>>>> [2] https://issues.apache.org/jira/browse/FLINK-19816
> >> > > >>>>>
> >> > > >>>>> Cheers,
> >> > > >>>>> Till
> >> > > >>>>>
> >> > > >>>>> On Mon, Nov 9, 2020 at 4:05 AM Xintong Song <
> >> tonysong...@gmail.com
> >> > >
> >> > > >>>> wrote:
> >> > > >>>>>
> >> > > >>>>>> Hi devs,
> >> > > >>>>>>
> >> > > >>>>>> I'd like to provide an update on the progress of preparing
> >> release
> >> > > >>>>> 1.11.3.
> >> > > >>>>>>
> >> > > >>>>>> *Blockers*
> >> > > >>>>>> We currently have 3 remaining blockers. (3 resolved and 1
> >> emerged
> >> > > >>>>> compared
> >> > > >>>>>> to last week)
> >> > > >>>>>>
> >> > > >>>>>> - [FLINK-19698] Add close() method and onCheckpointComplete()
> >> to
> >> > > >> the
> >> > > >>>>>> Source.
> >> > > >>>>>> The issue has been fixed on the master branch. It's currently
> >> > > >> blocked
> >> > > >>>> on
> >> > > >>>>>> the FLIP-27 backportings to backport it to the 1.11 branch.
> >> > > >>>>>>
> >> > > >>>>>> - [FLINK-19717] SourceReaderBase.pollNext may return
> >> END_OF_INPUT
> >> > > >> if
> >> > > >>>>>> SplitReader.fetch throws
> >> > > >>>>>> A PR has been opened and reviewed. From the discussions on
> the
> >> PR,
> >> > > >> it
> >> > > >>>>> looks
> >> > > >>>>>> close to mergeable.
> >> > > >>>>>>
> >> > > >>>>>> - [FLINK-19816] Flink restored from a wrong checkpoint (a
> very
> >> old
> >> > > >>> one
> >> > > >>>>> and
> >> > > >>>>>> not the last completed one)
> >> > > >>>>>> This is a newly emerged blocker and Matthias is working on
> it.
> >> > > >>>>>>
> >> > > >>>>>> *Test Instabilities*
> >> > > >>>>>> We currently have 27 test instabilities[1].
> >> > > >>>>>> AFAIK, none of them are as serious as to block the 1.11.3
> >> release.
> >> > > >>>>>>
> >> > > >>>>>> *FLIP-27 Backprotings*
> >> > > >>>>>>
> >> > > >>>>>> I noticed that there's no jira issues opened on the FLIP-27
> >> > > >>> backporting
> >> > > >>>>>> efforts, which is part of the major efforts planned for the
> >> 1.11.3
> >> > > >>>>> release,
> >> > > >>>>>> making it hard to track the progress.
> >> > > >>>>>>
> >> > > >>>>>>
> >> > > >>>>>> @Stephan and @Becket, could you please share the updates on
> the
> >> > > >>>>> backporting
> >> > > >>>>>> efforts? How is the progress and when are the efforts
> expected
> >> to
> >> > > >> be
> >> > > >>>>>> finished? It would be appreciated and helpful if we can have
> a
> >> > jira
> >> > > >>>>> ticket
> >> > > >>>>>> to track the backporing progress publicly.
> >> > > >>>>>>
> >> > > >>>>>>
> >> > > >>>>>> Thank you~
> >> > > >>>>>>
> >> > > >>>>>> Xintong Song
> >> > > >>>>>>
> >> > > >>>>>>
> >> > > >>>>>> [1]
> >> > > >>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://issues.apache.org/jira/browse/FLINK-16908?filter=12348580&jql=project%20%3D%20FLINK%20AND%20resolution%20%3D%20Unresolved%20AND%20affectedVersion%20in%20(1.11.0%2C%201.11.1%2C%201.11.2%2C%201.11.3)%20AND%20labels%20%3D%20test-stability%20ORDER%20BY%20updated%20DESC%2C%20created%20DESC
> >> > > >>>>>>
> >> > > >>>>>> On Wed, Nov 4, 2020 at 3:58 PM Tzu-Li (Gordon) Tai <
> >> > > >>>> tzuli...@apache.org>
> >> > > >>>>>> wrote:
> >> > > >>>>>>
> >> > > >>>>>>> Thanks for the efforts so far with pushing for 1.11.3.
> >> > > >>>>>>>
> >> > > >>>>>>> I'd like to provide a mid-week update on how we're looking
> >> with
> >> > > >> all
> >> > > >>>> the
> >> > > >>>>>>> pending blockers and backports:
> >> > > >>>>>>>
> >> > > >>>>>>> *Blockers**:*
> >> > > >>>>>>>
> >> > > >>>>>>> Currently all blockers either have an open PR, or have been
> >> > > >> merged.
> >> > > >>>>> I'll
> >> > > >>>>>>> highlight below the blockers *that still require reviewing
> >> > > >> efforts
> >> > > >>>> for
> >> > > >>>>>> them
> >> > > >>>>>>> to move forward:*
> >> > > >>>>>>>
> >> > > >>>>>>> - [FLINK-19909] Flink application in attach mode could not
> >> > > >>> terminate
> >> > > >>>>> when
> >> > > >>>>>>> the only job is canceled. PR:
> >> > > >>>>> https://github.com/apache/flink/pull/13911
> >> > > >>>>>>> - [FLINK-19717] SourceReaderBase.pollNext may return
> >> END_OF_INPUT
> >> > > >>> if
> >> > > >>>>>>> SplitReader.fetch throws. PR:
> >> > > >>>>> https://github.com/apache/flink/pull/13776
> >> > > >>>>>>>
> >> > > >>>>>>> The above PRs currently have no reviews at all yet. They
> seem
> >> to
> >> > > >>>>> already
> >> > > >>>>>>> have designated reviewers.
> >> > > >>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>> *Backports:*
> >> > > >>>>>>> - FLIP-27 robustness improvement backports: Stephan is
> >> currently
> >> > > >>>>> working
> >> > > >>>>>> on
> >> > > >>>>>>> backporting several FLIP-27 changes. There are no PRs yet
> for
> >> the
> >> > > >>>>>>> backported changes.
> >> > > >>>>>>> - DataStreamUtils.collect() refactorings backport: Steven Wu
> >> > > >>>> mentioned
> >> > > >>>>> to
> >> > > >>>>>>> backport this, but AFAIK this isn't assigned to anyone yet.
> >> > > >>>>>>>
> >> > > >>>>>>> *ETAs*:
> >> > > >>>>>>>
> >> > > >>>>>>> I'd like to request ETAs for the remaining backports, to
> >> prevent
> >> > > >> a
> >> > > >>>>> creep
> >> > > >>>>>> in
> >> > > >>>>>>> the scope of this bugfix release.
> >> > > >>>>>>>
> >> > > >>>>>>> We already have Flink users that would benefit from fixes
> that
> >> > > >> have
> >> > > >>>>> been
> >> > > >>>>>>> merged to release-1.11 already, so technically speaking the
> >> > > >>> backports
> >> > > >>>>>>> should be considered "nice-to-have" (to the best of my
> >> knowledge
> >> > > >> of
> >> > > >>>> the
> >> > > >>>>>>> changes) and could potentially be moved to a follow-up
> 1.11.4.
> >> > > >>>>>>> Most notably, the Stateful Functions project is already
> >> waiting
> >> > > >> on
> >> > > >>>>> Flink
> >> > > >>>>>>> 1.11.3 to address critical recovery issues (please see the
> >> > > >> StateFun
> >> > > >>>>> 2.2.1
> >> > > >>>>>>> release discussion thread [1]).
> >> > > >>>>>>>
> >> > > >>>>>>> @Stephan Ewen <se...@apache.org> @Becket Qin <
> >> > > >> becket....@gmail.com
> >> > > >>>>
> >> > > >>>>>> could
> >> > > >>>>>>> you provide an ETA for the FLIP-27 backports? It would help
> to
> >> > > >> get
> >> > > >>> a
> >> > > >>>>>> better
> >> > > >>>>>>> estimate to decide how we proceed here.
> >> > > >>>>>>>
> >> > > >>>>>>> Cheers,
> >> > > >>>>>>> Gordon
> >> > > >>>>>>>
> >> > > >>>>>>> [1]
> >> > > >>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> http://apache-flink-mailing-list-archive.1008284.n3.nabble.com/DISCUSS-Releasing-StateFun-hotfix-version-2-2-1-td46239.html
> >> > > >>>>>>>
> >> > > >>>>>>> On Wed, Nov 4, 2020 at 3:16 PM Tzu-Li (Gordon) Tai <
> >> > > >>>>> tzuli...@apache.org>
> >> > > >>>>>>> wrote:
> >> > > >>>>>>>
> >> > > >>>>>>>>> The collect() utils can be picked back, I see no issue
> with
> >> > > >>> that
> >> > > >>>>> (it
> >> > > >>>>>> is
> >> > > >>>>>>>> isolated utilities).
> >> > > >>>>>>>>
> >> > > >>>>>>>> Just checking on all the requested backports mentioned in
> >> this
> >> > > >>>>> thread,
> >> > > >>>>>>> and
> >> > > >>>>>>>> figuring out which ones seem to still be unassigned / open.
> >> > > >>>>>>>>
> >> > > >>>>>>>> Is someone working on backporting
> >> > > >>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://github.com/apache/flink/commit/09a7a66b7313fea64817fe960a8da1265b428efc
> >> > > >>>>>>>> to release-1.11 at the moment?
> >> > > >>>>>>>>
> >> > > >>>>>>>> On Wed, Nov 4, 2020 at 1:39 AM Steven Wu <
> >> stevenz...@gmail.com
> >> > > >>>
> >> > > >>>>> wrote:
> >> > > >>>>>>>>
> >> > > >>>>>>>>> @Stephan Ewen <se...@apache.org> yeah, we can do that.
> >> don't
> >> > > >>>> worry
> >> > > >>>>>>> about
> >> > > >>>>>>>>> it. your earlier email had the perfect explanation on why
> >> file
> >> > > >>>>> source
> >> > > >>>>>>>>> shouldn't be backported.
> >> > > >>>>>>>>>
> >> > > >>>>>>>>> On Tue, Nov 3, 2020 at 3:37 AM Stephan Ewen <
> >> se...@apache.org
> >> > > >>>
> >> > > >>>>> wrote:
> >> > > >>>>>>>>>
> >> > > >>>>>>>>>> @Steven would it be possible to initially copy some of
> the
> >> > > >>> code
> >> > > >>>>> into
> >> > > >>>>>>> the
> >> > > >>>>>>>>>> iceberg source and later replace it by a dependency on
> the
> >> > > >>> Flink
> >> > > >>>>>> file
> >> > > >>>>>>>>>> source?
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>> On Mon, Nov 2, 2020 at 8:33 PM Steven Wu <
> >> > > >>> stevenz...@gmail.com>
> >> > > >>>>>>> wrote:
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>>> Stephan, thanks a lot for explaining the file connector.
> >> > > >>> that
> >> > > >>>>>> makes
> >> > > >>>>>>>>>> sense.
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>> I was asking because we were trying to reuse some of the
> >> > > >>>>>>>>> implementations
> >> > > >>>>>>>>>> in
> >> > > >>>>>>>>>>> the file source for Iceberg source. Flink Iceberg source
> >> > > >>> lives
> >> > > >>>>> in
> >> > > >>>>>>> the
> >> > > >>>>>>>>>>> Iceberg repo, which is not possible to code against the
> >> > > >>> master
> >> > > >>>>>>> branch
> >> > > >>>>>>>>> of
> >> > > >>>>>>>>>>> the Flink code.
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>> On Mon, Nov 2, 2020 at 3:31 AM Stephan Ewen <
> >> > > >>> se...@apache.org
> >> > > >>>>>
> >> > > >>>>>>> wrote:
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>>> Hi Steven!
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>> So far there are no plans to pick back the file system
> >> > > >>>>> connector
> >> > > >>>>>>>>> code.
> >> > > >>>>>>>>>>> This
> >> > > >>>>>>>>>>>> is still evolving and not finalized for 1.12, so I
> don't
> >> > > >>>> feel
> >> > > >>>>> it
> >> > > >>>>>>> is
> >> > > >>>>>>>>> a
> >> > > >>>>>>>>>>> good
> >> > > >>>>>>>>>>>> candidate to be backported.
> >> > > >>>>>>>>>>>> However, with the base connector changes backported,
> you
> >> > > >>>>> should
> >> > > >>>>>> be
> >> > > >>>>>>>>> able
> >> > > >>>>>>>>>>> to
> >> > > >>>>>>>>>>>> run the file connector code from master against 1.11.3.
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>> The collect() utils can be picked back, I see no issue
> >> > > >>> with
> >> > > >>>>> that
> >> > > >>>>>>>>> (it is
> >> > > >>>>>>>>>>>> isolated utilities).
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>> Best,
> >> > > >>>>>>>>>>>> Stephan
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>> On Mon, Nov 2, 2020 at 3:02 AM Steven Wu <
> >> > > >>>>> stevenz...@gmail.com>
> >> > > >>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>>> Basically, it would be great to get the latest code in
> >> > > >>> the
> >> > > >>>>>>>>>>>>> flink-connector-files (FLIP-27).
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>> On Sat, Oct 31, 2020 at 9:57 AM Steven Wu <
> >> > > >>>>>> stevenz...@gmail.com
> >> > > >>>>>>>>
> >> > > >>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>> Stephan, it will be great if we can also backport
> >> > > >> the
> >> > > >>>>>>>>>> DataStreamUtils
> >> > > >>>>>>>>>>>>>> related commits that help with collecting output
> >> > > >> from
> >> > > >>>>>>> unbounded
> >> > > >>>>>>>>>>>> streams.
> >> > > >>>>>>>>>>>>>> e.g.
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://github.com/apache/flink/commit/09a7a66b7313fea64817fe960a8da1265b428efc
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>> I tried to copy and paste the code to unblock
> >> > > >> myself.
> >> > > >>>> but
> >> > > >>>>> it
> >> > > >>>>>>>>>> quickly
> >> > > >>>>>>>>>>>> got
> >> > > >>>>>>>>>>>>>> into the rabbit hole of more and more code.
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>> On Fri, Oct 30, 2020 at 11:02 AM Stephan Ewen <
> >> > > >>>>>>> se...@apache.org
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>> I have started with backporting the source API
> >> > > >>> changes.
> >> > > >>>>>> Some
> >> > > >>>>>>>>> minor
> >> > > >>>>>>>>>>>>>>> conflicts to solve, will need a bit more to finish
> >> > > >>>> this.
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>> On Fri, Oct 30, 2020 at 7:25 AM Tzu-Li (Gordon)
> >> > > >> Tai <
> >> > > >>>>>>>>>>>>> tzuli...@apache.org>
> >> > > >>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>> @Stephan Ewen <se...@apache.org>
> >> > > >>>>>>>>>>>>>>>> Are there already plans or ongoing efforts for
> >> > > >>>>>> backporting
> >> > > >>>>>>>>> the
> >> > > >>>>>>>>>>> list
> >> > > >>>>>>>>>>>> of
> >> > > >>>>>>>>>>>>>>>> FLIP-27 changes that you posted?
> >> > > >>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>> On Thu, Oct 29, 2020 at 7:08 PM Xintong Song <
> >> > > >>>>>>>>>>> tonysong...@gmail.com
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Hi folks,
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Just to provide some updates concerning the
> >> > > >> status
> >> > > >>>> on
> >> > > >>>>>> the
> >> > > >>>>>>>>>>>>>>>>> test instabilities.
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Currently, we have 30 unresolved tickets labeled
> >> > > >>>> with
> >> > > >>>>>>>>> `Affects
> >> > > >>>>>>>>>>>>> Version`
> >> > > >>>>>>>>>>>>>>>>> 1.11.x.
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://issues.apache.org/jira/browse/FLINK-19775?filter=12348580&jql=project%20%3D%20FLINK%20AND%20resolution%20%3D%20Unresolved%20AND%20affectedVersion%20in%20(1.11.0%2C%201.11.1%2C%201.11.2%2C%201.11.3)%20AND%20labels%20%3D%20test-stability%20ORDER%20BY%20created%20DESC
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Among the 30 tickets, 11 of them are:
> >> > > >>>>>>>>>>>>>>>>> - Have occured in the recent 3 months
> >> > > >>>>>>>>>>>>>>>>> - Not confirmed to be pure testability issues
> >> > > >>>>>>>>>>>>>>>>> - Not confirmed to be rare condition cases
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> It would be nice if someone familiar with these
> >> > > >>>>>> components
> >> > > >>>>>>>>> can
> >> > > >>>>>>>>>>>> take a
> >> > > >>>>>>>>>>>>>>> look
> >> > > >>>>>>>>>>>>>>>>> into these issues.
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-17159
> >> > > >>>>>> (ES6)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-17912
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-17949
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> ⁃
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-18444
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-18634
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-18648
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-18807
> >> > > >>>>>>> (Kafka)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-19369
> >> > > >>>>>>>>>>>> (BlobClientTest)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-19436
> >> > > >>>>>>> (TPCDS)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-19690
> >> > > >>>>>>>>>>>> (Format/Parquet)
> >> > > >>>>>>>>>>>>>>>>> -
> >> > > >>> https://issues.apache.org/jira/browse/FLINK-19775
> >> > > >>>>>>>>>>>>>>>>> (SystemProcessingTimeServiceTest)
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Thank you~
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> Xintong Song
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> On Thu, Oct 29, 2020 at 10:21 AM Jingsong Li <
> >> > > >>>>>>>>>>>> jingsongl...@gmail.com
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>> +1 to backport the FLIP-27 adjustments to
> >> > > >>> 1.11.x.
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>> If possible, that would be great. Many people
> >> > > >>> are
> >> > > >>>>>>> looking
> >> > > >>>>>>>>>>> forward
> >> > > >>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>>> FLIP-27 interface, but they don't want to take
> >> > > >>> the
> >> > > >>>>>> risk
> >> > > >>>>>>> to
> >> > > >>>>>>>>>>>> upgrade
> >> > > >>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>> 1.12
> >> > > >>>>>>>>>>>>>>>>>> (And wait 1.12). After all, 1.11 is a
> >> > > >> relatively
> >> > > >>>>>> stable
> >> > > >>>>>>>>>>> version.
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>> Best,
> >> > > >>>>>>>>>>>>>>>>>> Jingsong
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>> On Thu, Oct 29, 2020 at 1:24 AM Stephan Ewen <
> >> > > >>>>>>>>>> se...@apache.org
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> Thanks for starting this.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> +1 form my side to backport the FLIP-27
> >> > > >>>>> adjustments
> >> > > >>>>>> to
> >> > > >>>>>>>>>>> 1.11.x.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> There were quite a few changes, and I think
> >> > > >> we
> >> > > >>>>> need
> >> > > >>>>>> to
> >> > > >>>>>>>>>>>>> cherry-pick
> >> > > >>>>>>>>>>>>>>>>> them
> >> > > >>>>>>>>>>>>>>>>>> all
> >> > > >>>>>>>>>>>>>>>>>>> to not get some inconsistent mix of changes
> >> > > >>> and
> >> > > >>>>> many
> >> > > >>>>>>>>> merge
> >> > > >>>>>>>>>>>>>>> conflicts.
> >> > > >>>>>>>>>>>>>>>>>>> I made a list below of what we need to add
> >> > > >> to
> >> > > >>>>>>>>>> "release-1.11".
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> *#### Core Source API Changes to backport
> >> > > >> (in
> >> > > >>>>>> REVERSE
> >> > > >>>>>>>>>> order)*
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>  (Use: "git log
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>
> flink-core/src/main/java/org/apache/flink/api/connector/source")
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 162c072e9265a7b6dd9d6f5459eb7974091c4c4e
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19492][core] Consolidate Source
> >> > > >> Events
> >> > > >>>>>> between
> >> > > >>>>>>>>>> Source
> >> > > >>>>>>>>>>>> API
> >> > > >>>>>>>>>>>>>>> and
> >> > > >>>>>>>>>>>>>>>>>> Split
> >> > > >>>>>>>>>>>>>>>>>>> Reader API
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 428fbbad85379f71a9fbf1a1ab3e3dcfa9006436
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19205][core] Add access to
> >> > > >>> configuration
> >> > > >>>>> and
> >> > > >>>>>>>>>> hostname
> >> > > >>>>>>>>>>> in
> >> > > >>>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>>>> SourceReaderContext
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 723e1790744ddc78d19c7c978442af1383f38d33
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][core] Add to Source Enumerator
> >> > > >>>>> convenience
> >> > > >>>>>>>>> methods
> >> > > >>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>> assign
> >> > > >>>>>>>>>>>>>>>>>>> single split
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> *#### Connector Base Changes to Backport (in
> >> > > >>>>> REVERSE
> >> > > >>>>>>>>>> order)*
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>  (Use: "git log
> >> > > >>>>>>> flink-connectors/flink-connector-base")
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 401f56fe9d6b0271260edf9787cdcbfe4d03874d
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19427][FLINK-19489][tests] Fix test
> >> > > >>>>>> conditions
> >> > > >>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>> 'SplitFetcherTest.testNotifiesWhenGoingIdleConcurrent()'
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 68c5c2ff779d82a1ff81ffaf60d8a1b283797db1
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19448][connector base] Explicitly
> >> > > >> check
> >> > > >>>> for
> >> > > >>>>>>>>>>> un-expected
> >> > > >>>>>>>>>>>>>>>>> condition
> >> > > >>>>>>>>>>>>>>>>>>> that would leave an inconsistent state
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 162c072e9265a7b6dd9d6f5459eb7974091c4c4e
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19492][core] Consolidate Source
> >> > > >> Events
> >> > > >>>>>> between
> >> > > >>>>>>>>>> Source
> >> > > >>>>>>>>>>>> API
> >> > > >>>>>>>>>>>>>>> and
> >> > > >>>>>>>>>>>>>>>>>> Split
> >> > > >>>>>>>>>>>>>>>>>>> Reader API
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> c1ca7a4c7c21ec8868c14cdddd43c559625b794c
> >> > > >>>>>>>>>>>>>>>>>>> [refactor][tests] Move some source test
> >> > > >> utils
> >> > > >>>> from
> >> > > >>>>>>>>>>>>>>>>> flink-connector-base
> >> > > >>>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>> flink-core
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> ee5c4c211c35c70d28252363bbc8400453609977
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19251][connectors] Avoid confusing
> >> > > >>> queue
> >> > > >>>>>>>>> handling in
> >> > > >>>>>>>>>>>>>>>>>>> "SplitReader.handleSplitsChanges()"
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 5abef56b2bf85bcac786f6b16b6899b6cced7176
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19250][connectors] Fix error
> >> > > >>> propagation
> >> > > >>>> in
> >> > > >>>>>>>>>> connector
> >> > > >>>>>>>>>>>> base
> >> > > >>>>>>>>>>>>>>>>>>> (SplitFetcherManager).
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 8fcca837c55a9216595ee4c03038b52747098dbb
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][connectors] Improve JavaDocs for
> >> > > >>>>>>>>>>>>>>> SingleThreadFetcherManager
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 4700bb5dde3303cbe98882f6beb7379425717b01
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19225][connectors] Various small
> >> > > >>>>> improvements
> >> > > >>>>>>> to
> >> > > >>>>>>>>>>>>>>>>> SourceReaderBase
> >> > > >>>>>>>>>>>>>>>>>>> (part 2)
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 12261c6b7ed6478a9b9f6a69cb58246b83cab9b7
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-17393][connectors] (follow-up) Wakeup
> >> > > >>> the
> >> > > >>>>>>>>>>> SplitFetchers
> >> > > >>>>>>>>>>>>> more
> >> > > >>>>>>>>>>>>>>>>>>> elegantly.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> c60aaff0249bfd6b5871b7f82e03efc487a54d6b
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][tests] Extend test coverage for
> >> > > >>>>>>>>>>>>>>> FutureCompletingBlockingQueue
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> cef8a587d7fd2fe64cc644da5ed095d82e46f631
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19245][connectors] Set default
> >> > > >> capacity
> >> > > >>>> for
> >> > > >>>>>>>>>>>>>>>>>>> FutureCompletingBlockingQueue.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 4ea95782b4c6a2538153d4d16ad3f4839c7de0fb
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19223][connectors] Simplify
> >> > > >>> Availability
> >> > > >>>>>> Future
> >> > > >>>>>>>>>> Model
> >> > > >>>>>>>>>>> in
> >> > > >>>>>>>>>>>>>>> Base
> >> > > >>>>>>>>>>>>>>>>>>> Connector
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 511857049ba30c8ff0ee56da551fa4a479dc583e
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-18128][connectors] Ensure idle split
> >> > > >>>>> fetchers
> >> > > >>>>>>>>> lead
> >> > > >>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>> availability
> >> > > >>>>>>>>>>>>>>>>>>> notifications.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> a8206467af0830dcb89623ea068b5ca3b3450c92
> >> > > >>>>>>>>>>>>>>>>>>> [refactor][core] Eagerly initialize the
> >> > > >>>> FetchTask
> >> > > >>>>> to
> >> > > >>>>>>>>>> support
> >> > > >>>>>>>>>>>>> proper
> >> > > >>>>>>>>>>>>>>>>> unit
> >> > > >>>>>>>>>>>>>>>>>>> testing
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 3b2f54bcb437f98e6137c904045cc51072b5c06b
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][tests] Move constants in
> >> > > >>>> SplitFetcherTest
> >> > > >>>>>>>>> relevant
> >> > > >>>>>>>>>>> to
> >> > > >>>>>>>>>>>>> only
> >> > > >>>>>>>>>>>>>>>>> one
> >> > > >>>>>>>>>>>>>>>>>>> test into test method
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> d7625760a75a508bf05bcddc380bb4d62ee1743e
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19225][connectors] Various small
> >> > > >>>>> improvements
> >> > > >>>>>>> to
> >> > > >>>>>>>>>>>>>>>>> SourceReaderBase
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> a5b0d3297748c1be47ad579a88f24df2255a8df1
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-17393][connectors] Wakeup the
> >> > > >>>> SplitFetchers
> >> > > >>>>>>> more
> >> > > >>>>>>>>>>>>> elegantly.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> f42a3ebc3e81a034b7221a803c153636fef34903
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-18680][connectors] Make connector
> >> > > >> base
> >> > > >>>>>>>>>>>> RecordsWithSplitIds
> >> > > >>>>>>>>>>>>>>> more
> >> > > >>>>>>>>>>>>>>>>>>> lightweight.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> e3d273de822b085183d09b275a445879ff94b350
> >> > > >>>>>>>>>>>>>>>>>>> [FLINK-19162][connectors] Add 'recycle()' to
> >> > > >>> the
> >> > > >>>>>>>>>>>>>>> RecordsWithSplitIds
> >> > > >>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>> support reuse of heavy objects.
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 8ebc464c2520453a70001cd712abc8dee6ee89e0
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][testing] Add a set of
> >> > > >> parameterizable
> >> > > >>>>>> testing
> >> > > >>>>>>>>>> mocks
> >> > > >>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>>> Split
> >> > > >>>>>>>>>>>>>>>>>>> Reader API
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> 930a07438be1185388d7150640f294dfe2a5d378
> >> > > >>>>>>>>>>>>>>>>>>> [hotfix][connectors] Add RequestSplitEvent
> >> > > >> to
> >> > > >>>>>>>>>>>>>>> 'flink-connector-base'
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> commit
> >> > > >>> e945ce8a933bc378844782f784ca473c767ca159
> >> > > >>>>>>>>>>>>>>>>>>> [refactor][connectors] Backport of the
> >> > > >>>>>> connector-base
> >> > > >>>>>>>>>>> exception
> >> > > >>>>>>>>>>>>>>>>> handling
> >> > > >>>>>>>>>>>>>>>>>>> from the Kafka Connector Pull Request
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>> On Wed, Oct 28, 2020 at 5:49 PM Steven Wu <
> >> > > >>>>>>>>>>>> stevenz...@gmail.com>
> >> > > >>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>> I would love to see this FLIP-27 source
> >> > > >>>>> interface
> >> > > >>>>>>>>>>> improvement
> >> > > >>>>>>>>>>>>> [1]
> >> > > >>>>>>>>>>>>>>>>> made
> >> > > >>>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>>> 1.11.3.
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>> [1]
> >> > > >>>>>>> https://issues.apache.org/jira/browse/FLINK-19698
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>> On Wed, Oct 28, 2020 at 12:32 AM Tzu-Li
> >> > > >>>> (Gordon)
> >> > > >>>>>>> Tai <
> >> > > >>>>>>>>>>>>>>>>>>> tzuli...@apache.org>
> >> > > >>>>>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> Thanks for the replies so far!
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> Just to provide a brief update on the
> >> > > >>> status
> >> > > >>>>> of
> >> > > >>>>>>>>>> blockers
> >> > > >>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>> 1.11.3
> >> > > >>>>>>>>>>>>>>>>>> so
> >> > > >>>>>>>>>>>>>>>>>>>> far:
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> *PR opened, pending reviewer*-
> >> > > >>> [FLINK-19717]
> >> > > >>>>>>>>>>>>>>>>>> SourceReaderBase.pollNext
> >> > > >>>>>>>>>>>>>>>>>>>> may
> >> > > >>>>>>>>>>>>>>>>>>>>> return END_OF_INPUT if SplitReader.fetch
> >> > > >>>>> throws
> >> > > >>>>>> (
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>> https://github.com/apache/flink/pull/13776)
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> *PR opened, reviewed + close to being
> >> > > >>>> merged*
> >> > > >>>>>>>>>>>>>>>>>>>>> - [FLINK-19741] Timer service should
> >> > > >> skip
> >> > > >>>>>>> restoring
> >> > > >>>>>>>>>> from
> >> > > >>>>>>>>>>>> raw
> >> > > >>>>>>>>>>>>>>> keyed
> >> > > >>>>>>>>>>>>>>>>>>> stream
> >> > > >>>>>>>>>>>>>>>>>>>>> if it isn't the writer (
> >> > > >>>>>>>>>>>>>>>>> https://github.com/apache/flink/pull/13761)
> >> > > >>>>>>>>>>>>>>>>>>>>> - [FLINK-19748] Raw keyed stream key
> >> > > >> group
> >> > > >>>>>>> iterator
> >> > > >>>>>>>>>>> should
> >> > > >>>>>>>>>>>> be
> >> > > >>>>>>>>>>>>>>>>>> skipping
> >> > > >>>>>>>>>>>>>>>>>>>>> unwritten key groups (
> >> > > >>>>>>>>>>>>>>> https://github.com/apache/flink/pull/13772)
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> *Merged*
> >> > > >>>>>>>>>>>>>>>>>>>>> - [FLINK-19154] Application mode deletes
> >> > > >>> HA
> >> > > >>>>> data
> >> > > >>>>>>> in
> >> > > >>>>>>>>>> case
> >> > > >>>>>>>>>>> of
> >> > > >>>>>>>>>>>>>>>>> suspended
> >> > > >>>>>>>>>>>>>>>>>>>>> ZooKeeper connection
> >> > > >>>>>>>>>>>>>>>>>>>>> - [FLINK-19569] Upgrade ICU4J to 67.1+
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> Right now as it seems, progress is
> >> > > >> mainly
> >> > > >>>>>> blocked
> >> > > >>>>>>>>> on a
> >> > > >>>>>>>>>>>>> reviewer
> >> > > >>>>>>>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>>>>>> FLINK-19717.
> >> > > >>>>>>>>>>>>>>>>>>>>> Meanwhile, Xintong is keeping an eye on
> >> > > >>> test
> >> > > >>>>>>>>>>> instabilities
> >> > > >>>>>>>>>>>>> [1]
> >> > > >>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>> see
> >> > > >>>>>>>>>>>>>>>>>>> if
> >> > > >>>>>>>>>>>>>>>>>>>>> there are any fixes that should be
> >> > > >> applied
> >> > > >>>> to
> >> > > >>>>>>>>>>>> `release-1.11`.
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> This is also a reminder, that if there
> >> > > >> are
> >> > > >>>>> other
> >> > > >>>>>>>>>> blockers
> >> > > >>>>>>>>>>>>> that
> >> > > >>>>>>>>>>>>>>> we
> >> > > >>>>>>>>>>>>>>>>>> need
> >> > > >>>>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>>>> be aware of, or a need to re-establish
> >> > > >>>>> estimated
> >> > > >>>>>>>>> time
> >> > > >>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>> getting
> >> > > >>>>>>>>>>>>>>>>>> fixes
> >> > > >>>>>>>>>>>>>>>>>>>> in
> >> > > >>>>>>>>>>>>>>>>>>>>> and delay the RC for 1.11.3, please do
> >> > > >> let
> >> > > >>>> us
> >> > > >>>>>>> know!
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> Cheers,
> >> > > >>>>>>>>>>>>>>>>>>>>> Gordon
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> [1]
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://issues.apache.org/jira/issues/?jql=project%20%3D%20FLINK%20AND%20status%20in%20(Open%2C%20%22In%20Progress%22%2C%20Reopened)%20AND%20affectedVersion%20in%20(1.11.0%2C%201.11.1%2C%201.11.2)%20AND%20labels%20%3D%20test-stability
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>> On Mon, Oct 26, 2020 at 9:43 PM Kostas
> >> > > >>>>> Kloudas <
> >> > > >>>>>>>>>>>>>>>>> kklou...@apache.org>
> >> > > >>>>>>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>> +1 for releasing Flink 1.11.3 as it
> >> > > >>>>> contains a
> >> > > >>>>>>>>> number
> >> > > >>>>>>>>>>> of
> >> > > >>>>>>>>>>>>>>>>> important
> >> > > >>>>>>>>>>>>>>>>>>>>>> fixes and thanks Gordon and Xintong
> >> > > >> for
> >> > > >>>>>>>>> volunteering.
> >> > > >>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>> Cheers,
> >> > > >>>>>>>>>>>>>>>>>>>>>> Kostas
> >> > > >>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>> On Mon, Oct 26, 2020 at 4:37 AM Yu Li
> >> > > >> <
> >> > > >>>>>>>>>>> car...@gmail.com>
> >> > > >>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>> +1 for releasing Flink 1.11.3, and
> >> > > >>>> thanks
> >> > > >>>>>>> Gordon
> >> > > >>>>>>>>>> and
> >> > > >>>>>>>>>>>>>>> Xintong
> >> > > >>>>>>>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>>>>>>>> volunteering as our release
> >> > > >> managers.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>> Best Regards,
> >> > > >>>>>>>>>>>>>>>>>>>>>>> Yu
> >> > > >>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>> On Mon, 26 Oct 2020 at 09:45,
> >> > > >> Xintong
> >> > > >>>>> Song <
> >> > > >>>>>>>>>>>>>>>>>> tonysong...@gmail.com>
> >> > > >>>>>>>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> Thanks Gordan for starting this
> >> > > >>>>>> discussion.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> My pleasure to help with the
> >> > > >> release
> >> > > >>>>>>> process.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> Thank you~
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> Xintong Song
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> On Fri, Oct 23, 2020 at 11:29 PM
> >> > > >>> Till
> >> > > >>>>>>>>> Rohrmann <
> >> > > >>>>>>>>>>>>>>>>>>>> trohrm...@apache.org
> >> > > >>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> Thanks for starting this
> >> > > >>> discussion
> >> > > >>>>>>> Gordon.
> >> > > >>>>>>>>>> There
> >> > > >>>>>>>>>>>> are
> >> > > >>>>>>>>>>>>>>> over
> >> > > >>>>>>>>>>>>>>>>>> 100
> >> > > >>>>>>>>>>>>>>>>>>>>> issues
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> which are fixed for 1.11.3.
> >> > > >> Hence
> >> > > >>> +1
> >> > > >>>>>> for a
> >> > > >>>>>>>>>>> soonish
> >> > > >>>>>>>>>>>>>>> 1.11.3
> >> > > >>>>>>>>>>>>>>>>>>>> release.
> >> > > >>>>>>>>>>>>>>>>>>>>>> Thanks
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> for volunteering as our release
> >> > > >>>>> managers
> >> > > >>>>>>>>> Gordon
> >> > > >>>>>>>>>>> and
> >> > > >>>>>>>>>>>>>>>>> Xintong!
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> Cheers,
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> Till
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> On Fri, Oct 23, 2020 at 5:02 PM
> >> > > >>>> Tzu-Li
> >> > > >>>>>>>>> (Gordon)
> >> > > >>>>>>>>>>>> Tai <
> >> > > >>>>>>>>>>>>>>>>>>>>>> tzuli...@apache.org
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>> wrote:
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Hi,
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Xintong and I would like to
> >> > > >>> start a
> >> > > >>>>>>>>> discussion
> >> > > >>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>> releasing
> >> > > >>>>>>>>>>>>>>>>>>>> Flink
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> 1.11.3
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> soon.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> It seems like we already have a
> >> > > >>> few
> >> > > >>>>>>>>> pressing
> >> > > >>>>>>>>>>>> issues
> >> > > >>>>>>>>>>>>>>> that
> >> > > >>>>>>>>>>>>>>>>>> needs
> >> > > >>>>>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>>>> be
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> included in a new hotfix
> >> > > >> release:
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>   - Heap-based timers’ restore
> >> > > >>>>>> behaviour
> >> > > >>>>>>>>> is
> >> > > >>>>>>>>>>>>> causing a
> >> > > >>>>>>>>>>>>>>>>>>> critical
> >> > > >>>>>>>>>>>>>>>>>>>>>> recovery
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>   issue for StateFun [1] [2]
> >> > > >>> [3].
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>   - There are several
> >> > > >> robustness
> >> > > >>>>>> issues
> >> > > >>>>>>>>> for
> >> > > >>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>> FLIP-27
> >> > > >>>>>>>>>>>>>>>>> new
> >> > > >>>>>>>>>>>>>>>>>>>>> source
> >> > > >>>>>>>>>>>>>>>>>>>>>> API,
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>   such as [4]. We already have
> >> > > >>>> some
> >> > > >>>>>>> users
> >> > > >>>>>>>>>> using
> >> > > >>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>> FLIP-27
> >> > > >>>>>>>>>>>>>>>>>>> API
> >> > > >>>>>>>>>>>>>>>>>>>>>> with
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> 1.11.x,
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>   so it would be important to
> >> > > >>> get
> >> > > >>>>>> those
> >> > > >>>>>>>>> fixes
> >> > > >>>>>>>>>>> in
> >> > > >>>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>> 1.11.x
> >> > > >>>>>>>>>>>>>>>>>>> as
> >> > > >>>>>>>>>>>>>>>>>>>>>> well.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Apart from the issues that are
> >> > > >>>>> already
> >> > > >>>>>>>>> marked
> >> > > >>>>>>>>>> as
> >> > > >>>>>>>>>>>>>>> blocker
> >> > > >>>>>>>>>>>>>>>>> for
> >> > > >>>>>>>>>>>>>>>>>>>>> 1.11.3
> >> > > >>>>>>>>>>>>>>>>>>>>>> in
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> our
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> JIRA [5], please let us know in
> >> > > >>>> this
> >> > > >>>>>>>>> thread if
> >> > > >>>>>>>>>>>> there
> >> > > >>>>>>>>>>>>>>> is
> >> > > >>>>>>>>>>>>>>>>>>> already
> >> > > >>>>>>>>>>>>>>>>>>>>>> ongoing
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> work for other important fixes
> >> > > >>> that
> >> > > >>>>> we
> >> > > >>>>>>>>> should
> >> > > >>>>>>>>>>> try
> >> > > >>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>> include.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Xintong and I would like to
> >> > > >>>> volunteer
> >> > > >>>>>> for
> >> > > >>>>>>>>>>> managing
> >> > > >>>>>>>>>>>>>>> this
> >> > > >>>>>>>>>>>>>>>>>>> release,
> >> > > >>>>>>>>>>>>>>>>>>>>> and
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> will
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> try to communicate the priority
> >> > > >>> of
> >> > > >>>>>>> pending
> >> > > >>>>>>>>>>>> blockers
> >> > > >>>>>>>>>>>>>>> over
> >> > > >>>>>>>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>>>>> next
> >> > > >>>>>>>>>>>>>>>>>>>>>> few
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> days.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Since the aforementioned issues
> >> > > >>> are
> >> > > >>>>>> quite
> >> > > >>>>>>>>>>>> critical,
> >> > > >>>>>>>>>>>>>>> we’d
> >> > > >>>>>>>>>>>>>>>>>> like
> >> > > >>>>>>>>>>>>>>>>>>> to
> >> > > >>>>>>>>>>>>>>>>>>>>> aim
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> for a *feature
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> freeze by the end of next week
> >> > > >>>> (Oct.
> >> > > >>>>>>> 30th)*
> >> > > >>>>>>>>>> and
> >> > > >>>>>>>>>>>>> start
> >> > > >>>>>>>>>>>>>>> the
> >> > > >>>>>>>>>>>>>>>>>>>> release
> >> > > >>>>>>>>>>>>>>>>>>>>>> voting
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> process the week after.
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> If that is too short of a
> >> > > >> notice
> >> > > >>>> and
> >> > > >>>>>> you
> >> > > >>>>>>>>> might
> >> > > >>>>>>>>>>>> need
> >> > > >>>>>>>>>>>>>>> more
> >> > > >>>>>>>>>>>>>>>>>> time,
> >> > > >>>>>>>>>>>>>>>>>>>>>> please
> >> > > >>>>>>>>>>>>>>>>>>>>>>>> let
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> us know!
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Cheers,
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> Gordon
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> [1]
> >> > > >>>>>>>>>>>>> https://issues.apache.org/jira/browse/FLINK-19692
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> [2]
> >> > > >>>>>>>>>>>>> https://issues.apache.org/jira/browse/FLINK-19741
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> [3]
> >> > > >>>>>>>>>>>>> https://issues.apache.org/jira/browse/FLINK-19748
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> [4]
> >> > > >>>>>>>>>>>>> https://issues.apache.org/jira/browse/FLINK-19717
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>> [5]
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> >
> >>
> https://issues.apache.org/jira/issues/?jql=project%20%3D%20FLINK%20AND%20priority%20%3D%20Blocker%20AND%20fixVersion%20%3D%201.11.3
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>> --
> >> > > >>>>>>>>>>>>>>>>>> Best, Jingsong Lee
> >> > > >>>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>>
> >> > > >>>>>>>>>>>>
> >> > > >>>>>>>>>>>
> >> > > >>>>>>>>>>
> >> > > >>>>>>>>>
> >> > > >>>>>>>>
> >> > > >>>>>>>
> >> > > >>>>>>
> >> > > >>>>>
> >> > > >>>>
> >> > > >>>
> >> > > >>
> >> > >
> >> > >
> >> > >
> >> >
> >>
> >
>

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