SparkStreaming(14):log4j日誌-flume-kafka-SparkStreaming的整合
阿新 • • 發佈:2018-11-08
一、功能實現
模擬log4j的日誌生產,將日誌輸出到flume伺服器。然後,通過flume將日誌資訊輸出到kafka,進而Streaming可以從kafka獲得日誌,並且進行簡單的處理。
二、步驟
1.目的:
使用log4j將日誌輸按照一定格式輸出,並且傳遞給flume伺服器特定埠接收資料。然後使用kafka接收,並使用streaming處理。
2.產生log4j日誌:
(1)在IDEA的test資料夾下面建立java測試資料夾,並且設定為測試程式碼!
(2)指定log4j日誌格式,並且和flume對接
-》 新加test的resources資料夾,新建log4j.properties
log4j.rootCategory=INFO,stdout,flume #...log4j輸出格式 log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} [%t] [%C] [%p] - %m%n #...log4j輸出到flume位置 log4j.appender.flume = org.apache.flume.clients.log4jappender.Log4jAppender log4j.appender.flume.Hostname = bigdata.ibeifeng.com log4j.appender.flume.Port = 41414 log4j.appender.flume.UnsafeMode = true
實現功能:(b)指定日誌生產格式,(b)指定輸出到特定的flume伺服器埠,即與flume進行關聯
【參考官網:http://flume.apache.org/FlumeUserGuide.html搜尋Log4J Appender】
日誌格式: 2018-09-23 12:13:52 [main] [LoggerGenerator] [INFO] - current value is :0 2018-09-23 12:13:54 [main] [LoggerGenerator] [INFO] - current value is :1 2018-09-23 12:13:55 [main] [LoggerGenerator] [INFO] - current value is :2
(3)新增依賴
<dependency>
<groupId>org.apache.flume.flume-ng-clients</groupId>
<artifactId>flume-ng-log4jappender</artifactId>
<version>1.6.0</version>
</dependency>
(4)重新執行java程式LoggerGenerator
import org.apache.log4j.Logger;
public class LoggerGenerator {
private static Logger logger= Logger.getLogger(LoggerGenerator.class.getName());
public static void main(String[] args) throws Exception{
int index=0;
while (true){
Thread.sleep(100);
logger.info("value is :"+ index++);
}
}
}
3.flume接收日誌配置
(1)flume日誌檔案streaming2.conf
agent1.sources=avro-source
agent1.channels=logger-channel
agent1.sinks=kafka-sink
#define source
agent1.sources.avro-source.type=avro
agent1.sources.avro-source.bind=0.0.0.0
agent1.sources.avro-source.port=41414
#define channel
agent1.channels.logger-channel.type=memory
#define sink
agent1.sinks.kafka-sink.type=org.apache.flume.sink.kafka.KafkaSink
agent1.sinks.kafka-sink.topic = streamingtopic
agent1.sinks.kafka-sink.brokerList = bigdata.ibeifeng.com:9092
agent1.sinks.kafka-sink.requiredAcks = 1
agent1.sinks.kafka-sink.batchSize = 20
agent1.sources.avro-source.channels=logger-channel
agent1.sinks.kafka-sink.channel=logger-channel
(2)啟動flume【暫時不啟動,因為kafka還沒有啟動,啟動後不會報錯,但是一旦有資料,就會報錯!】
bin/flume-ng agent --conf conf --conf-file conf/streaming2.conf --name agent1 -Dflume.root.logger=INFO,console
4.kafka接收flume傳遞的資料
(1)啟動zookeeper
(2)啟動kafka server
bin/kafka-server-start.sh -daemon config/server.properties
(3)建立topic
bin/kafka-topics.sh --create --topic streamingtopic --zookeeper bigdata.ibeifeng.com:2181/kafka08 --partitions 1 --replication-factor 1
(4)進行簡單測試,驗證從日誌到kafka的流程
-》開啟flume
bin/flume-ng agent --conf conf --conf-file conf/streaming2.conf --name agent1 -Dflume.root.logger=INFO,console
-》開啟kafka消費者
bin/kafka-console-consumer.sh --topic streamingtopic --zookeeper bigdata.ibeifeng.com:2181/kafka08
(經測試成功!)
5.spark streaming程式碼處理從kafka得到的資訊
(1)程式碼
package Spark
import org.apache.spark.SparkConf
import org.apache.spark.streaming.dstream.ReceiverInputDStream
import org.apache.spark.streaming.kafka.KafkaUtils
import org.apache.spark.streaming.{Seconds, StreamingContext}
/**
* Streaming和kafka對接
*/
object KafkaStreamingApp_product {
def main(args: Array[String]): Unit = {
if(args.length!=4){
System.err.println("Usage: KafkaStreamingApp_product <zkQuorum><group><topics><numThreads>")
}
val Array(zkQuorum,group,topics,numThreads)=args
//因為這個是生產環境,所以註釋
val sparkConf=new SparkConf().setAppName("KafkaStreamingApp_product")
.setMaster("local[2]")
val ssc=new StreamingContext(sparkConf,Seconds(5))
val topicMap=topics.split(",").map((_,numThreads.toInt)).toMap
//TODO: Spark streaming如何對接kafka
//參考原始碼createStream
val messages: ReceiverInputDStream[(String, String)] =KafkaUtils.createStream(ssc,zkQuorum,group,topicMap)
//取第2個
// messages.map(_._2).flatMap(_.split(" ")).map((_,1)).reduceByKey(_+_).print()
messages.map(_._2).count().print()
ssc.start()
ssc.awaitTermination()
}
}
(2)執行環境配置,新增引數
bigdata.ibeifeng.com:2181/kafka08 test streamingtopic 1
三、測試
1.啟動zk
2.啟動flume
bin/flume-ng agent --conf conf --conf-file conf/streaming2.conf --name agent1 -Dflume.root.logger=INFO,console
3.啟動kafka伺服器
bin/kafka-server-start.sh -daemon config/server.properties
4.啟動日誌生產類LoggerGenerator
5.啟動SparkStreaming類KafkaStreamingApp_product
(經測試,成功!)