flink-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Kostas Kloudas <k.klou...@data-artisans.com>
Subject Re: [POLL] Dropping savepoint format compatibility for 1.1.x in the Flink 1.4.0 release
Date Wed, 02 Aug 2017 13:26:59 GMT
+1

> On Aug 2, 2017, at 3:16 PM, Till Rohrmann <trohrmann@apache.org> wrote:
> 
> +1
> 
> On Wed, Aug 2, 2017 at 9:12 AM, Stefan Richter <s.richter@data-artisans.com>
> wrote:
> 
>> +1
>> 
>> Am 28.07.2017 um 16:03 schrieb Stephan Ewen <sewen@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 <sewen@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
>>> 
>>> 
>> 
>> 


Mime
View raw message