> you can't reasonably stay on the 2015 version forever, refuse to
adopt any of the updates or fixes in the 8 years since then, and
reasonably expect things to continue to work well.
We are well aware that Kryo is a ticking time bomb.
> Is there any possibility a future release of Flink can upgrade to a
recent version of Kryo serialization?
Of course there is, but someone needs to figure out a way to do this
without breaking everything or providing a reasonable upgrade path,
which has been blocking us so far.
On 09/02/2023 07:34, Clayton Wohl wrote:
I've noticed the latest Flink is using the Kryo serializer library
version 2.24.0 which is back from 2015!
The Kryo project is actively maintained, it's on version 5.4.0, so
2.24.0 is really quite ancient. I presume the concern is maintaining
compatibility with persisted savepoints. That's a valid concern, but
you can't reasonably stay on the 2015 version forever, refuse to adopt
any of the updates or fixes in the 8 years since then, and reasonably
expect things to continue to work well.
Is there any possibility a future release of Flink can upgrade to a
recent version of Kryo serialization?
