用于DataStream#assignAscendingTimestamps的javadoc
`* Assigns timestamps to the elements in the data stream and periodically creates * watermarks to signal event time progress. * * This method is a shortcut for data streams where the element timestamp are known * to be monotonously asce
CheckpointConfig.ExternalizedCheckpointCleanup.RETAIN_ON_CANCELLATION);我在用AscendingTimestampExtractor, new AscendingTimestampExtractor<ObjectNode>() {
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我使用卡夫卡作为我的数据流源,并尝试了AscendingTimestampExtractor和自定义分配器,实现了从中提到的AssignerWithPeriodicWatermarks,并且作为我已经测试过的Time.seconds(windowSize)))我为AscendingTimestampExtractorFlinkKafkaConsumer09<>(myTopic1, ne
我想在Flink中创建一个基于EventTime的会话窗口,这样当新消息的事件时间比创建窗口的消息的事件时间长180秒时,它就会触发。 例如: t1(0 seconds) : msg1 <-- This is the first message which causes the session-windows to be createdt3(39 seconds) : msg3..
t7(190 seconds) : msg7 <-- The event time (t7) is more than 180 secon