此篇博文讲的是Flume的聚合。
多Source汇总数据到单Flume如下图所示。
hadoop003上的Flume-1监控文件/opt/module/group.log, hadoop002上的Flume-2监控某一个端口的数据流, Flume-1与Flume-2将数据发送给hadoop004上的Flume-3,Flume-3将最终数据打印到控制台。
[bigdata@hadoop003 module]$ sudo chown -R bigdata:bigdata flume/
[bigdata@hadoop003 job]$ mkdir group3
配置Source用于监控hive.log文件,配置Sink输出数据到下一级Flume。
[bigdata@hadoop003 group3]$ vim flume1-logger-flume.conf
# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1
# Describe/configure the source
a1.sources.r1.type = exec
a1.sources.r1.command = tail -F /opt/module/group.log
a1.sources.r1.shell = /bin/bash -c
# Describe the sink
a1.sinks.k1.type = avro
a1.sinks.k1.hostname = hadoop004
a1.sinks.k1.port = 4141
# Describe the channel
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100
# Bind the source and sink to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1
配置Source监控端口44444数据流,配置Sink数据到下一级Flume:
[bigdata@hadoop002 group3]$ vim flume2-netcat-flume.conf
# Name the components on this agent
a2.sources = r1
a2.sinks = k1
a2.channels = c1
# Describe/configure the source
a2.sources.r1.type = netcat
a2.sources.r1.bind = hadoop002
a2.sources.r1.port = 44444
# Describe the sink
a2.sinks.k1.type = avro
a2.sinks.k1.hostname = hadoop004
a2.sinks.k1.port = 4141
# Use a channel which buffers events in memory
a2.channels.c1.type = memory
a2.channels.c1.capacity = 1000
a2.channels.c1.transactionCapacity = 100
# Bind the source and sink to the channel
a2.sources.r1.channels = c1
a2.sinks.k1.channel = c1
配置source用于接收flume1与flume2发送过来的数据流,最终合并后sink到控制台。
[bigdata@hadoop004 group3]$ vim flume3-flume-logger.conf
# Name the components on this agent
a3.sources = r1
a3.sinks = k1
a3.channels = c1
# Describe/configure the source
a3.sources.r1.type = avro
a3.sources.r1.bind = hadoop004
a3.sources.r1.port = 4141
# Describe the sink
# Describe the sink
a3.sinks.k1.type = logger
# Describe the channel
a3.channels.c1.type = memory
a3.channels.c1.capacity = 1000
a3.channels.c1.transactionCapacity = 100
# Bind the source and sink to the channel
a3.sources.r1.channels = c1
a3.sinks.k1.channel = c1
分别开启对应配置文件:flume3-flume-logger.conf,flume2-netcat-flume.conf,flume1-logger-flume.conf。
[bigdata@hadoop004 flume]$ bin/flume-ng agent --conf conf/ --name a3 --conf-file job/group3/flume3-flume-logger.conf -Dflume.root.logger=INFO,console
[bigdata@hadoop002 flume]$ bin/flume-ng agent --conf conf/ --name a2 --conf-file job/group3/flume2-netcat-flume.conf
[bigdata@hadoop003 flume]$ bin/flume-ng agent --conf conf/ --name a1 --conf-file job/group3/flume1-logger-flume.conf
[bigdata@hadoop003 module]$ echo 'hello' > group.log
[bigdata@hadoop003 module]$ echo 'my name is bu wen bu huo' > group.log
[bigdata@hadoop002 flume]$ netstat -nltp // 查看进程
[bigdata@hadoop002 module]$ nc hadoop002 44444
我们可以看到发送的内容和添加的日志都能在工作台上查看。
本次的分享就到这里了