curcur opened a new pull request #12356:
URL: https://github.com/apache/flink/pull/12356
## What is the purpose of the change
Provide an API to make KafkaShuffle's Producer and Consumer run in different
environments by default.
If running in the same environment, sink and a source are recovered
independently according to regional failover. However, they share the same
checkpoint coordinator and correspondingly, share the same global checkpoint
snapshot. In that case, if the consumer fails, the producer can not commit data
because of the incomplete checkpoint (the producer needs a checkpoint-complete
signal to complete the second stage of two-phase commit). The same applies to
the producer.
## Brief change log
- FlinkKafkaShuffle#persistentKeyBy: Adds a separate read environment
## Verifying this change
IT tests:
- KafkaShuffleExactlyOnceITCase
- KafkaShuffleITCase
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: no
- The serializers: no
- The runtime per-record code paths (performance sensitive): no
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn/Mesos, ZooKeeper: no
- The S3 file system connector: no
## Documentation
- Does this pull request introduce a new feature? no
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