Hi Till,

I completely agree with you.

Best,

Arvid

On Fri, Jan 22, 2021 at 1:46 PM Till Rohrmann <trohrm...@apache.org> wrote:

> Thanks for the update Arvid. This fix warrants a quick 1.12.2 release imo.
>
> Cheers,
> Till
>
> On Fri, Jan 22, 2021 at 1:42 PM Arvid Heise <ar...@ververica.com> wrote:
>
> > Hi Xintong,
> >
> > yes, I'm on it.
> >
> > Best,
> >
> > Arvid
> >
> > On Fri, Jan 22, 2021 at 1:01 PM Xintong Song <tonysong...@gmail.com>
> > wrote:
> >
> > > Hi Arvid,
> > >
> > > Thanks for the announcement.
> > >
> > > I think we'd better also update the 1.12 release notes[1] and 1.12.1
> > > release blog post[2].
> > > Would you have time to help prepare the warning messages?
> > >
> > > Thank you~
> > >
> > > Xintong Song
> > >
> > >
> > > [1]
> > >
> > >
> >
> https://github.com/apache/flink/blob/master/docs/release-notes/flink-1.12.md
> > >
> > > [2]
> > >
> > >
> >
> https://github.com/apache/flink-web/blob/asf-site/_posts/2021-01-19-release-1.12.1.md
> > >
> > >
> > >
> > > On Fri, Jan 22, 2021 at 7:40 PM Arvid Heise <ar...@apache.org> wrote:
> > >
> > > > Dear users,
> > > >
> > > > Unfortunately, the bug in the unaligned checkpoint that we fixed in
> > > 1.12.1
> > > > still occurs under certain circumstances, such that we recommend to
> not
> > > use
> > > > unaligned checkpoints in production until 1.12.2. While the normal
> > > > processing is not affected by this bug, a recovery with corrupted
> > > > checkpoints will not succeed.
> > > >
> > > > If you have used unaligned checkpoints, you can change back to
> aligned
> > > > checkpoint when starting from an uncorrupted unaligned checkpoint.
> > There
> > > is
> > > > no easy way to check if a checkpoint is corrupted or not, however,
> the
> > > rare
> > > > corruption happens most likely when you have short checkpointing
> > > intervals
> > > > (<1s), high backpressure, and the previous checkpoint was declined
> for
> > > some
> > > > reason. So to be safe, before switching back, make sure that the last
> > > > handful of checkpoints all succeeded.
> > > >
> > > > We have already prepared a fix that we will merge into the release
> > branch
> > > > today, but the discussion on when to release 1.12.2 has not started
> > yet.
> > > >
> > > > Best,
> > > >
> > > > Arvid
> > > >
> > >
> >
> >
> > --
> >
> > Arvid Heise | Senior Java Developer
> >
> > <https://www.ververica.com/>
> >
> > Follow us @VervericaData
> >
> > --
> >
> > Join Flink Forward <https://flink-forward.org/> - The Apache Flink
> > Conference
> >
> > Stream Processing | Event Driven | Real Time
> >
> > --
> >
> > Ververica GmbH | Invalidenstrasse 115, 10115 Berlin, Germany
> >
> > --
> > Ververica GmbH
> > Registered at Amtsgericht Charlottenburg: HRB 158244 B
> > Managing Directors: Timothy Alexander Steinert, Yip Park Tung Jason, Ji
> > (Toni) Cheng
> >
>

Reply via email to