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
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