The docs are worded that way since not all backends support it.
I believe rescaling does work for RocksDB checkpoints, but we do not provide any /guarantee /that this remains to be the case.
Basically, use at your own risk. On 13.11.2018 13:24, suraj7 wrote:
Hi, I'm using Flink 1.5 with RocksDB State Backend for Checkpointing. According to the docs, Checkpoints do not support Job rescaling. However, when i tried to restart a job from an externalised checkpoint with a different parallelism, the job resumes correctly without any issues. I would like to know if rescaling a Flink job from an external Checkpoint based on RocksDB State Backend is reliable or are there any known issues/drawbacks? Thanks, Suraj -- Sent from: http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/
