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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