Flume多个Agent实例--转载
Flume多个Agent实例
多个Agent的数据汇聚到同一个Agent
我这里是用本机模拟此架构，三个日志收集Flume Agent节点和一个日志Flume Collector节点
Agent1节点的flume.conf配置
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agent1.sources = system-logfile-source agent1.channels = ch1 agent1.sinks = flume-avro-sink # 这里收集的是/var/log/system.log日志文件 agent1.sources.system-logfile-source.channels = ch1 agent1.sources.system-logfile-source.type = exec agent1.sources.system-logfile-source.command = tail -F /var/log/system.log agent1.channels.ch1.type = memory agent1.channels.ch1.capacity = 1000 agent1.channels.ch1.transactionCapacity = 100 # Agent1设置sink的hostname是10.10.1.23（我本机的IP地址），也就是该Agent要向10.10.1.23主机发送数据 agent1.sinks.flume-avro-sink.channel = ch1 agent1.sinks.flume-avro-sink.type = avro agent1.sinks.flume-avro-sink.hostname = 10.10.1.23 agent1.sinks.flume-avro-sink.port = 41414 |
Agent2节点的flume.conf配置
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agent2.sources = install-logfile-source agent2.channels = ch2 agent2.sinks = flume-avro-sink # 这里收集的是/var/log/install.log日志文件 agent2.sources.install-logfile-source.channels = ch2 agent2.sources.install-logfile-source.type = exec agent2.sources.install-logfile-source.command = tail -F /var/log/install.log agent2.channels.ch2.type = memory agent2.channels.ch2.capacity = 1000 agent2.channels.ch2.transactionCapacity = 100 # Agent2设置sink的hostname是10.10.1.23（我本机的IP地址），也就是该Agent要向10.10.1.23主机发送数据 agent2.sinks.flume-avro-sink.channel = ch2 agent2.sinks.flume-avro-sink.type = avro agent2.sinks.flume-avro-sink.hostname = 10.10.1.23 agent2.sinks.flume-avro-sink.port = 41414 |
Agent3节点的flume.conf配置
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agent3.sources = command-logfile-source agent3.channels = ch3 agent3.sinks = flume-avro-sink # 这里收集的是/Users/yunyu/Downloads/command.log日志文件，这个日志文件是我自己定义的（请根据自己的实际环境配置相应的log日志文件） agent3.sources.command-logfile-source.channels = ch3 agent3.sources.command-logfile-source.type = exec agent3.sources.command-logfile-source.command = tail -F /Users/yunyu/Downloads/command.log agent3.channels.ch3.type = memory agent3.channels.ch3.capacity = 1000 agent3.channels.ch3.transactionCapacity = 100 # Agent3设置sink的hostname是10.10.1.23（我本机的IP地址），也就是该Agent要向10.10.1.23主机发送数据 agent3.sinks.flume-avro-sink.channel = ch3 agent3.sinks.flume-avro-sink.type = avro agent3.sinks.flume-avro-sink.hostname = 10.10.1.23 agent3.sinks.flume-avro-sink.port = 41414 |
Collector节点的flume_collect.conf配置
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agentX.sources = flume-avro-sink agentX.channels = chX agentX.sinks = flume-collect-sink # 监听的IP地址是10.10.1.23。三个Agent节点的sinks的传输协议类型要和Collector节点的sources的传输协议类型一致，这里传输协议都是avro。 agentX.sources.flume-avro-sink.channels = chX agentX.sources.flume-avro-sink.type = avro agentX.sources.flume-avro-sink.bind = 10.10.1.23 agentX.sources.flume-avro-sink.port = 41414 agentX.sources.flume-avro-sink.threads = 8 agentX.channels.chX.type = memory agentX.channels.chX.capacity = 1000 agentX.channels.chX.transactionCapacity = 100 # 这里是将接收到的数据，以文件的形式存储起来，保存路径是/Users/yunyu/Downloads/sinkout/ agentX.sinks.flume-collect-sink.channel = chX agentX.sinks.flume-collect-sink.type = file_roll agentX.sinks.flume-collect-sink.batchSize = 100 agentX.sinks.flume-collect-sink.serializer = TEXT agentX.sinks.flume-collect-sink.sink.directory = /Users/yunyu/Downloads/sinkout/ |
注意
这里需要注意一下sources和sinks的配置，我们在三个Agent节点都指定了sinks的hostname=10.10.1.23，但是Collector节点指定的sources的bind=10.10.1.23，这两个参数需要注意下，我开始的时候就配置错了，在sinks使用的bind=10.10.1.23，而没有使用hostname参数，Flume启动的时候就会提示”java.lang.IllegalStateException: No hostname specified”这个错误，后来查了一下官网的配置，发现是我自己把sources和sinks的绑定主机的参数搞混了
- sources使用的是bind（意思是监听主机）
- sinks使用的是hostname（意思是传输数据的主机）
分别启动Collector和三个Agent节点
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# 最好先启动Collector $ ./bin/flume-ng agent --conf ./conf/ -f conf/flume_collect.conf -Dflume.root.logger=DEBUG,console -n agentX $ ./bin/flume-ng agent --conf ./conf/ -f conf/flume.conf -Dflume.root.logger=DEBUG,console -n agent1 $ ./bin/flume-ng agent --conf ./conf/ -f conf/flume.conf -Dflume.root.logger=DEBUG,console -n agent2 $ ./bin/flume-ng agent --conf ./conf/ -f conf/flume.conf -Dflume.root.logger=DEBUG,console -n agent3 |
启动三个Agent节点分别会看到如下输出信息
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2016-08-24 15:35:31,144 (New I/O server boss #1 ([id: 0x0c4ee010, /10.10.1.23:41414])) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xad3b4304, /10.10.1.23:50791 => /10.10.1.23:41414] OPEN 2016-08-24 15:35:31,146 (New I/O worker #1) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xad3b4304, /10.10.1.23:50791 => /10.10.1.23:41414] BOUND: /10.10.1.23:41414 2016-08-24 15:35:31,146 (New I/O worker #1) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xad3b4304, /10.10.1.23:50791 => /10.10.1.23:41414] CONNECTED: /10.10.1.23:50791 |
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2016-08-24 15:36:03,623 (New I/O server boss #1 ([id: 0x0c4ee010, /10.10.1.23:41414])) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xdda0a0fd, /10.10.1.23:50797 => /10.10.1.23:41414] OPEN 2016-08-24 15:36:03,623 (New I/O worker #2) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xdda0a0fd, /10.10.1.23:50797 => /10.10.1.23:41414] BOUND: /10.10.1.23:41414 2016-08-24 15:36:03,623 (New I/O worker #2) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0xdda0a0fd, /10.10.1.23:50797 => /10.10.1.23:41414] CONNECTED: /10.10.1.23:50797 |
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2016-08-24 15:38:27,270 (New I/O server boss #1 ([id: 0x0c4ee010, /10.10.1.23:41414])) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0x909310e6, /10.10.1.23:50822 => /10.10.1.23:41414] OPEN 2016-08-24 15:38:27,270 (New I/O worker #3) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0x909310e6, /10.10.1.23:50822 => /10.10.1.23:41414] BOUND: /10.10.1.23:41414 2016-08-24 15:38:27,271 (New I/O worker #3) [INFO - org.apache.avro.ipc.NettyServer$NettyServerAvroHandler.handleUpstream(NettyServer.java:171)] [id: 0x909310e6, /10.10.1.23:50822 => /10.10.1.23:41414] CONNECTED: /10.10.1.23:50822 |
我们会看到每个Agent实际上是启动了一个NettyServer进行通信，三个Agent的启动log都会在本机IP：10.10.1.23上开启一个端口号与Collector的端口号41414进行通信
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10.10.1.23:50791 => /10.10.1.23:41414 10.10.1.23:50797 => /10.10.1.23:41414 10.10.1.23:50822 => /10.10.1.23:41414 |
我们在分别查询一下当前flume的所有进程和上面对应的三个端口号，会发现50791, 50797, 50822这三个端口号正如上面所说的是Agent1 -> AgentX, Agent2 -> AgentX, Agent3 -> AgentX的通信端口
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$ ps -ef | grep flume 501 7824 6602 0 3:36PM ttys000 0:02.20 /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -Xmx20m -Dflume.root.logger=DEBUG,console -cp /Users/yunyu/dev/flume-1.6.0_agent_2/conf:/Users/yunyu/dev/flume-1.6.0_agent_2/lib/* -Djava.library.path= org.apache.flume.node.Application -f conf/flume.conf -n agent2 501 7804 4754 0 3:35PM ttys001 0:01.96 /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -Xmx20m -Dflume.root.logger=DEBUG,console -cp /Users/yunyu/dev/flume-1.6.0/conf:/Users/yunyu/dev/flume-1.6.0/lib/* -Djava.library.path= org.apache.flume.node.Application -f conf/flume_collect.conf -n agentX 501 7921 7903 0 3:39PM ttys002 0:00.00 grep flume 501 7814 5574 0 3:35PM ttys003 0:02.57 /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -Xmx20m -Dflume.root.logger=DEBUG,console -cp /Users/yunyu/dev/flume-1.6.0_agent_1/conf:/Users/yunyu/dev/flume-1.6.0_agent_1/lib/* -Djava.library.path= org.apache.flume.node.Application -f conf/flume.conf -n agent1 501 7886 5608 0 3:38PM ttys005 0:01.58 /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -Xmx20m -Dflume.root.logger=DEBUG,console -cp /Users/yunyu/dev/flume-1.6.0_agent_3/conf:/Users/yunyu/dev/flume-1.6.0_agent_3/lib/* -Djava.library.path= org.apache.flume.node.Application -f conf/flume.conf -n agent3 |
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$ lsof -i:50791 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 7804 yunyu 162u IPv6 0xd0e0ada8bdad6435 0t0 TCP localhost:41414->localhost:50791 (ESTABLISHED) java 7814 yunyu 156u IPv6 0xd0e0ada8c2f7e955 0t0 TCP localhost:50791->localhost:41414 (ESTABLISHED) $ lsof -i:50797 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 7804 yunyu 164u IPv6 0xd0e0ada8bdad43f5 0t0 TCP localhost:41414->localhost:50797 (ESTABLISHED) java 7824 yunyu 156u IPv6 0xd0e0ada8c3152955 0t0 TCP localhost:50797->localhost:41414 (ESTABLISHED) $ lsof -i:50822 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME java 7804 yunyu 165u IPv6 0xd0e0ada8c3175955 0t0 TCP localhost:41414->localhost:50822 (ESTABLISHED) java 7886 yunyu 156u IPv6 0xd0e0ada8c3175eb5 0t0 TCP localhost:50822->localhost:41414 (ESTABLISHED) |
