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单数据源多出口案例(选择器)

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IP属地:北京1楼2020-12-15 17:30回复
    单Source多Channel、Sink如图7-2所示。
    图7-2 单Source多Channel、Sink
    1)案例需求:使用Flume-1监控文件变动,Flume-1将变动内容传递给Flume-2,Flume-2负责存储到HDFS。同时Flume-1将变动内容传递给Flume-3,Flume-3负责输出到Local FileSystem。
    2)需求分析:
    3)实现步骤:
    0.准备工作
    在/opt/module/flume/job目录下创建group1文件夹
    [atguigu@hadoop102 job]$ cd group1/
    在/opt/module/datas/目录下创建flume3文件夹
    [atguigu@hadoop102 datas]$ mkdir flume3
    1.创建flume-file-flume.conf
    配置1个接收日志文件的source和两个channel、两个sink,分别输送给flume-flume-hdfs和flume-flume-dir。
    创建配置文件并打开
    [atguigu@hadoop102 group1]$ touch flume-file-flume.conf
    [atguigu@hadoop102 group1]$ vim flume-file-flume.conf
    添加如下内容
    # Name the components on this agent
    a1.sources = r1
    a1.sinks = k1 k2
    a1.channels = c1 c2
    # 将数据流复制给所有channel
    a1.sources.r1.selector.type = replicating
    # Describe/configure the source
    a1.sources.r1.type = exec
    a1.sources.r1.command = tail -F /opt/module/hive/logs/hive.log
    a1.sources.r1.shell = /bin/bash -c
    # Describe the sink
    a1.sinks.k1.type = avro
    a1.sinks.k1.hostname = hadoop102
    a1.sinks.k1.port = 4141
    a1.sinks.k2.type = avro
    a1.sinks.k2.hostname = hadoop102
    a1.sinks.k2.port = 4142
    # Describe the channel
    a1.channels.c1.type = memory
    a1.channels.c1.capacity = 1000
    a1.channels.c1.transactionCapacity = 100
    a1.channels.c2.type = memory
    a1.channels.c2.capacity = 1000
    a1.channels.c2.transactionCapacity = 100
    # Bind the source and sink to the channel
    a1.sources.r1.channels = c1 c2
    a1.sinks.k1.channel = c1
    a1.sinks.k2.channel = c2
    注:Avro是由Hadoop创始人Doug Cutting创建的一种语言无关的数据序列化和RPC框架。
    注:RPC(Remote Procedure Call)—远程过程调用,它是一种通过网络从远程计算机程序上请求服务,而不需要了解底层网络技术的协议。


    IP属地:北京2楼2020-12-15 17:31
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