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These are kind of the default parameters to use Kafka. The params.kafkaBootstrapServer is the kafka bootstrap servers's urlhostname and port.
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val kafkaParams = Map[String, Object]( "bootstrap.servers" -> params.kafkaBootstrapServer, "key.deserializer" -> classOf[StringDeserializer], "value.deserializer" -> classOf[StringDeserializer], "group.id" -> "kafka example", "auto.offset.reset" -> "earliest", "enable.auto.commit" -> (false: java.lang.Boolean) ) |
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