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Bigdata, Semantic IoT, Hadoop, NoSQL

Bigdata, Hadoop ecosystem, Semantic IoT등의 프로젝트를 진행중에 습득한 내용을 정리하는 곳입니다.
필요한 분을 위해서 공개하고 있습니다. 문의사항은 gooper@gooper.com로 메일을 보내주세요.


1. flume설치파일 다운로드

apache-flume-1.5.2-bin.tar.gz


2. 압축풀기

tar xvfz apache-flume-1.5.2-bin.tar.gz


3. 링크생성

ln -s apache-flume-1.5.2-bin flume


4. 환경변수 수정(vi /home/hadoop/.bashrc)

export FLUME_HOME=/hadoop/flume

export PATH=$PATH:$FLUME_HOME/bin

* 변경사항 반영 : source /home/hadoop/.bashrc


5. Flume Conf

  cd $FLUME_HOME/conf

  cp flume-conf.properties.template flume.conf

  vi flume.conf


agent.sources = seqGenSrc

agent.channels = memoryChannel

agent.sinks = hdfsSink


# For each one of the sources, the type is defined

agent.sources.seqGenSrc.type = exec

agent.sources.seqGenSrc.command = tail -F /home/bigdata/hadoop-1.2.1/logs/hadoop-hadoop-namenode-localhost.localdomain.log

#가상분산환경에서 테스트용으로 잡은것.


# The channel can be defined as follows.

agent.sources.seqGenSrc.channels = memoryChannel


# Each sink's type must be defined

agent.sinks.hdfsSink.type = hdfs

agent.sinks.hdfsSink.hdfs.path = hdfs://mycluster/flume/data     #테스트용

agent.sinks.hdfsSink.rollInterval = 30

agent.sinks.hdfsSink.sink.batchSize = 100


#Specify the channel the sink should use

agent.sinks.hdfsSink.channel = memoryChannel


# Each channel's type is defined.

agent.channels.memoryChannel.type = memory


# Other config values specific to each type of channel(sink or source)

# can be defined as well

# In this case, it specifies the capacity of the memory channel

agent.channels.memoryChannel.capacity = 100000

agent.channels.memoryChannel.transactionCapacity = 10000


6. agent기동

[hadoop@master]$ flume-ng agent -conf-file ./flume.conf --name agent

Info: Including Hadoop libraries found via (/usr/local/flume/bin/hadoop) for HDFS access

Info: Excluding /usr/local/flume/share/usr/local/common/lib/slf4j-api-1.7.5.jar from classpath

Info: Excluding /usr/local/flume/share/usr/local/common/lib/slf4j-log4j12-1.7.5.jar from classpath

Info: Including HBASE libraries found via (/usr/local/hbase/bin/hbase) for HBASE access

Info: Excluding /usr/local/hbase/lib/slf4j-api-1.6.4.jar from classpath

Info: Excluding /usr/local/hbase/lib/slf4j-log4j12-1.6.4.jar from classpath

Info: Excluding /usr/local/flume/share/usr/local/common/lib/slf4j-api-1.7.5.jar from classpath

Info: Excluding /usr/local/flume/share/usr/local/common/lib/slf4j-log4j12-1.7.5.jar from classpath

.....

15/05/21 17:38:57 INFO node.PollingPropertiesFileConfigurationProvider: Configuration provider starting

15/05/21 17:38:57 INFO node.PollingPropertiesFileConfigurationProvider: Reloading configuration file:./flume.conf

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Processing:hdfsSink

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Processing:hdfsSink

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Added sinks: hdfsSink Agent: agent

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Processing:hdfsSink

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Processing:hdfsSink

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Processing:hdfsSink

15/05/21 17:38:57 INFO conf.FlumeConfiguration: Post-validation flume configuration contains configuration for agents: [agent]

15/05/21 17:38:57 INFO node.AbstractConfigurationProvider: Creating channels

15/05/21 17:38:57 INFO channel.DefaultChannelFactory: Creating instance of channel memoryChannel type memory

15/05/21 17:38:57 INFO node.AbstractConfigurationProvider: Created channel memoryChannel

15/05/21 17:38:57 INFO source.DefaultSourceFactory: Creating instance of source seqGenSrc, type exec

15/05/21 17:38:57 INFO sink.DefaultSinkFactory: Creating instance of sink: hdfsSink, type: hdfs

15/05/21 17:38:58 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable

15/05/21 17:38:58 INFO hdfs.HDFSEventSink: Hadoop Security enabled: false

15/05/21 17:38:58 INFO node.AbstractConfigurationProvider: Channel memoryChannel connected to [seqGenSrc, hdfsSink]

15/05/21 17:38:58 INFO node.Application: Starting new configuration:{ sourceRunners:{seqGenSrc=EventDrivenSourceRunner: { source:org.apache.flume.source.ExecSource{name:seqGenSrc,state:IDLE} }} sinkRunners:{hdfsSink=SinkRunner: { policy:org.apache.flume.sink.DefaultSinkProcessor@3b201837 counterGroup:{ name:null counters:{} } }} channels:{memoryChannel=org.apache.flume.channel.MemoryChannel{name: memoryChannel}} }

15/05/21 17:38:58 INFO node.Application: Starting Channel memoryChannel

15/05/21 17:38:58 INFO instrumentation.MonitoredCounterGroup: Monitored counter group for type: CHANNEL, name: memoryChannel: Successfully registered new MBean.

15/05/21 17:38:58 INFO instrumentation.MonitoredCounterGroup: Component type: CHANNEL, name: memoryChannel started

15/05/21 17:38:58 INFO node.Application: Starting Sink hdfsSink

15/05/21 17:38:58 INFO node.Application: Starting Source seqGenSrc


7. hdfs확인

cat aaa >> /home/hadoop/test.log로 데이타를 넣고 아래 명령으로 확인해본다.


[hadoop@master]$ hadoop fs -lsr /flume

drwxr-xr-x   - hadoop supergroup          0 2015-05-21 17:39 /flume/data

-rw-r--r--   3 hadoop supergroup        208 2015-05-21 17:39 /flume/data/FlumeData.1432197542415

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