CC00013.druid——|Hadoop&OLAP_Druid.V13|——|Druid.v13|实战|Druid实战案例.V2|
郜俊晤
一、编程实现kafka生产者
### --- 编程实现kafka生产者：在SparkBigData工程下创建scala程序：KafkaProducerForDruid
package cn.yanqi.druid
import java.util.Properties
import org.apache.kafka.clients.producer.{KafkaProducer, ProducerConfig, ProducerRecord}
import org.apache.kafka.common.serialization.StringSerializer
import scala.io.BufferedSource
object KafkaProducerForDruid {
def main(args: Array[String]): Unit = {
// 定义 kafka 参数
val brokers = "hadoop01:9092,hadoop02:9092,hadoop03:9092"
val topic = "yanqidruid2"
val prop = new Properties()
prop.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, brokers)
prop.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, classOf[StringSerializer])
prop.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, classOf[StringSerializer])
// KafkaProducer
val producer = new KafkaProducer[String, String](prop)
val source: BufferedSource = scala.io.Source.fromFile("data/yanqi_orders1.json")
val iter: Iterator[String] = source.getLines()
iter.foreach{line =>
val msg = new ProducerRecord[String, String](topic, line)
producer.send(msg)
Thread.sleep(3)
}
producer.close()
source.close()
}
}### --- 编译打印
~~~ # 编译打印
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cn.yanqi.druid.KafkaProducerForDruid
~~~不会输出任何参数
二、启动相关服务
### --- 启动服务
~~~ # 启动zookeeper服务
[root@hadoop01 ~]# ./zk.sh start
~~~ # 启动kafka服务
[root@hadoop01 ~]# kafka-server-start.sh -daemon /opt/yanqi/servers/kafka_2.12/config/server.properties~~~ # 启动hdfs服务
[root@hadoop01 ~]# start-dfs.sh~~~ # 启动druid服务
[root@hadoop01 ~]# nohup start-cluster-master-no-zk-server &
[root@hadoop02 ~]# nohup start-cluster-data-server &
[root@hadoop03 ~]# nohup start-cluster-query-server &### --- 创建kafka.topic
~~~ # 创建topic
[root@hadoop01 ~]# kafka-topics.sh --create --zookeeper hadoop01:2181,hadoop02:2181/myKafka --replication-factor 1 --partitions 3 --topic yanqidruid2~~~ # 启动生产者
[root@hadoop01 ~]# kafka-console-producer.sh --broker-list hadoop01:9092,hadoop02:9092 --topic yanqidruid2
~~~加载5条数据
{"ts":1607658549460,"orderId":"1010059","userId":"500421","orderStatusId":1,"orderStatus":"已支付","payModeId":1,"payMode":"支付宝","payment":"3979.80","product":{"productId":"110688","productName":"学生xxx粉色","price":10.8,"productNum":1,"categoryid":"10301","catname1":"家装建材","catname2":"灯饰照明","catname3":"台灯"}}
{"ts":1607658549460,"orderId":"1010059","userId":"500421","orderStatusId":1,"orderStatus":"已支付","payModeId":1,"payMode":"支付宝","payment":"3979.80","product":{"productId":"107622","productName":"美的xxx2b","price":80.8,"productNum":1,"categoryid":"10369","catname1":"家居家电、厨具卫浴","catname2":"厨房小电","catname3":"电水壶/热水瓶"}}
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