+1 On Wed, Aug 2, 2017 at 9:12 AM, Stefan Richter <s.rich...@data-artisans.com> wrote:
> +1 > > Am 28.07.2017 um 16:03 schrieb Stephan Ewen <se...@apache.org>: > > Seems like no one raised a concern so far about dropping the savepoint > format compatibility for 1.1 in 1.4. > > Leaving this thread open for some more days, but from the sentiment, it > seems like we should go ahead? > > On Wed, Jul 12, 2017 at 4:43 PM, Stephan Ewen <se...@apache.org> wrote: > >> Hi users! >> >> Flink currently maintains backwards compatibility for savepoint formats, >> which means that savepoints taken with Flink version 1.1.x and 1.2.x can be >> resumed in Flink 1.3.x >> >> We are discussing how many versions back to support. The proposition is >> the following: >> >> * Suggestion: Flink 1.4.0 will be able to resume savepoints taken with >> version 1.3.x and 1.2.x, but not savepoints from version 1.1.x and 1.0.x* >> >> >> The reason for that is that there is a lot of code mapping between the >> completely different legacy format (1.1.x, not re-scalable) and the >> key-group-oriented format (1.2.x onwards, re-scalable). It would greatly >> help the development of state and checkpointing features to drop that old >> code. >> >> Please let us know if you have concerns about that. >> >> Best, >> Stephan >> >> > >
