carryxyh opened a new pull request #8243: [FLINK-12299] ExecutionConfig#setAutoWatermarkInterval should check param(interval should not less than zero) URL: https://github.com/apache/flink/pull/8243 ## What is the purpose of the change We should check autowatermarkinterval field. In any scenario, `autoWatermarkInterval` should not be less than or equal to zero. First of all, this does not correspond to the meaning of `autoWatermarkInterval`. Second, in the case where `autoWatermarkInterval` is less than 0, we will not be able to register ourselves in `TimestampsAndPeriodicWatermarksOperator#open`, which will result in the water level of this stream being kept at the lowest level. ## Brief change log add check to ExecutionConfig#setAutoWatermarkInterval's param ## Verifying this change This change is a trivial rework / code cleanup without any test coverage. ## Does this pull request potentially affect one of the following parts: no ## Documentation - Does this pull request introduce a new feature? ( no)
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