[jira] [Created] (FLINK-6653) Avoid directly serializing AWS's Shard class in Kinesis consumer's checkpoints

[Shang Yuanchun (Jira)]

Tzu-Li (Gordon) Tai created FLINK-6653:
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             Summary: Avoid directly serializing AWS's Shard class in Kinesis consumer's checkpoints
                 Key: FLINK-6653
                 URL: https://issues.apache.org/jira/browse/FLINK-6653
             Project: Flink
          Issue Type: Improvement
          Components: Kinesis Connector
            Reporter: Tzu-Li (Gordon) Tai


Currently, the Kinesis consumer's checkpoints directly serialize AWS's `Shard` instances in checkpoints. This makes bumping AWS library versions hard, since any change to the `Shard` class by AWS will break checkpoint compatibility.

We should either have custom serialization for `KinesisStreamShard`, or disintegrate the information in `Shard`. Ideally, it would be best to make `KinesisStreamShard` and `SequenceNumber` to be non-serializable, hence avoiding Java serialization in the checkpoints.



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