cdh环境下,spark streaming与flume的集成问题总结

文章发自:http://www.cnblogs.com/hark0623/p/4170156.html  转发请注明

 

如何做集成,其实特别简单,网上其实就是教程。

http://blog.csdn.net/fighting_one_piece/article/details/40667035  看这里就成。 我用的是第一种集成。。
 
做的时候,出现了各种问题。    大概从从2014.12.17 早晨5点搞到2014.12.17晚上18点30
 
总结起来其实很简单,但做的时候搞了许久啊啊啊!!!!   这样的事情,吃一堑长一智吧
问题1、  需要引用各种包,这些包要打入你的JAR中, 因为用的是spark on yarn模式,所以如果不打进去,在集群中是找不到依赖包的!!!  去哪找呢?  直接去search.maven.org找。。
cdh环境下,spark streaming与flume的集成问题总结
 
问题2:因为搭建的spark on yarn集群,所以监听时只能监听localhost,不然如果你指定了ip,那么非该IP下的结点,就会因为监听不到而出现了问题
 
问题3:cdh中的flume的启动,你要去find / -name flume.conf ,找一下,然后找到最新的,与cloudera manager配置文件一样的那么,flume启动时就用这个配置文件
 
问题4:不要直接用集群,先用单点测试一下。。因为单点测试一下后会发现各种问题。 解决后再去集群测试
 
问题5:一定要注意版本!  cdh5.2中spark的版本是1.1.0,而我用的插件一直是1.1.1版本的!!! 啊, 为这事儿,我从中午搞到现在。   这个要吃一堑长一智啦!!!
 
 
 
 
spark代码如下
package com.hark



import java.io.File



import org.apache.spark.SparkConf

import org.apache.spark.storage.StorageLevel

import org.apache.spark.streaming.flume.FlumeUtils

import org.apache.spark.streaming.{Seconds, StreamingContext}

import org.apache.spark.streaming.StreamingContext._



/**

 * Created by Administrator on 2014-12-16.

 */

object SparkStreamingFlumeTest {

  def main(args: Array[String]) {

    //println("harkhark")







    val path = new File(".").getCanonicalPath()

    //File workaround = new File(".");

    System.getProperties().put("hadoop.home.dir", path);

    new File("./bin").mkdirs();

    new File("./bin/winutils.exe").createNewFile();



    //val sparkConf = new SparkConf().setAppName("HdfsWordCount").setMaster("local[2]")

    val sparkConf = new SparkConf().setAppName("HdfsWordCount")



    // Create the context

    val ssc = new StreamingContext(sparkConf, Seconds(20))



   

    //val hostname = "127.0.0.1"

   val hostname = "localhost"

    val port = 2345

    val storageLevel = StorageLevel.MEMORY_ONLY

    val flumeStream = FlumeUtils.createStream(ssc, hostname, port, storageLevel)



    flumeStream.count().map(cnt => "Received " + cnt + " flume events." ).print()







    ssc.start()

    ssc.awaitTermination()





  }

}

  

flume配置文件如下
 
# Please paste flume.conf here. Example:



# Sources, channels, and sinks are defined per

# agent name, in this case 'tier1'.

tier1.sources  = source1

tier1.channels = channel1

tier1.sinks    = sink1



# For each source, channel, and sink, set

# standard properties.

tier1.sources.source1.type     = exec

tier1.sources.source1.command     = tail -F /opt/data/test3/123

tier1.sources.source1.channels = channel1

tier1.channels.channel1.type   = memory

#tier1.sinks.sink1.type         = logger

tier1.sinks.sink1.type         = avro

tier1.sinks.sink1.hostname        = localhost

tier1.sinks.sink1.port        = 2345

tier1.sinks.sink1.channel      = channel1



# Other properties are specific to each type of yhx.hadoop.dn01

# source, channel, or sink. In this case, we

# specify the capacity of the memory channel.

tier1.channels.channel1.capacity = 100

 

 
 
spark启动命令如下:
spark-submit --driver-memory 512m --executor-memory 512m --executor-cores 1  --num-executors 3 --class com.hark.SparkStreamingFlumeTest --deploy-mode cluster --master yarn /opt/spark/SparkTest.jar

 

 
 
flume启动命令如下:
flume-ng agent --conf /opt/cloudera-manager/run/cloudera-scm-agent/process/585-flume-AGENT --conf-file /opt/cloudera-manager/run/cloudera-scm-agent/process/585-flume-AGENT/flume.conf --name tier1 -Dflume.root.logger=INFO,console

 

 

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