Github user tzulitai commented on the pull request: https://github.com/apache/flink/commit/7b574cf5b6e7549ae53ea0846022c4430a979a01#commitcomment-18811598 From the original Kinesis consumer documentation, I don't think it's necessary to mention this, because there's already this in the first paragraph: "Each subtask of the consumer is responsible for fetching data records from multiple Kinesis shards. The number of shards fetched by each subtask will change as shards are closed and created by Kinesis." Perhaps its because the new warning notice is a bit confusing? Especially this: "Currently, resharding can not be handled transparently (i.e., without failing and restarting jobs) if there are idle consumer subtasks, which occur when the total number of shards is lower than the configured consumer parallelism."
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