Github user tzulitai commented on a diff in the pull request: https://github.com/apache/flink/pull/4228#discussion_r124967289 --- Diff: flink-connectors/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/util/KinesisConfigUtil.java --- @@ -171,7 +172,14 @@ public static void validateAwsConfiguration(Properties config) { } if (!config.containsKey(AWSConfigConstants.AWS_REGION)) { --- End diff -- I wonder if its actually sufficient to rely on this check, without having the need to have a bunch of the new constructors that you added. I.e., it is sufficient that the user doesn't supply a `AWSConfigConstants.AWS_REGION` value in the props, which we would then default to using `Regions.getCurrentRegion()`.
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