WebDirectKafkaInputDStream的初始化参数包括StreamingContext,LocationStrategy,ConsumerStrategy和perPartitionConfig,根据源码文档locationStrategy一般采用PreferConsistent,perPartitionConfig一般采用默认实现,这里不做研究,主要会有点区别的参数为consumerStrategy,它的作用会在下面的源码 ...
sparkstreaming消费kafka的offset的管理方式 - CSDN文库
WebJun 22, 2024 · val broker = "221.181.73.44:19092". The default port is 9092, it might be the problem. "auto.offset.reset" -> "earliest" and "enable.auto.commit" -> false should always make your read from the beginning of your topic's logs, as your offsets are not stored anywhere. So there is no problems with that. Web2.KafkaUtils.createDirectStream. A、 简化并行,不需要多个kafka输入流,该方法将会创建和kafka分区一样的rdd个数,而且会从kafka并行读取。. C、恰好一次语义 (Exactly … buick gmc dealer hot springs ar
Scala KafkaUtils API 偏移管理 火花流_Scala_Apache Spark_Apache …
Web正确修复了吗?错误消息说什么?是的…val messageHandler:(String,String)=(mmd:MessageAndMetadata[String,String])=>(mmd.key(),mmd.message())相同的错误“createDirectStream的类型参数太多”您是否知道最新的Kafka 0.10+兼容的 KafkaUtils.createDirectStream WebcreateDirectStream is a method that creates a DirectKafkaInputDStream from a StreamingContext, LocationStrategy, and ConsumerStrategy. Tip. Enable DEBUG logging level for org.apache.kafka.clients.consumer.KafkaConsumer logger to see what happens inside the Kafka consumer that is used to communicate with Kafka broker(s). WebOct 29, 2024 · SparkKafka直接流(createDirectStream)和kafka分区每个kafka主题分区对应一个RDD分区。spark可以通过spark.streaming.kafka.maxRatePerPartition配置,对每 … crossin moving