2.0 FLUME的目录结构

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bin 可执行文件如:flume-ng
conf 配置文件: 如日志文件
lib 所有的jar包,也可以将自己写的jar包上传该目录

2.1、监控端口数据

2.1.1、编辑配置文件

  1. # example.conf: A single-node Flume configuration
  3. # Name the components on this agent
  4. a1.sources = r1
  5. a1.sinks = k1
  6. a1.channels = c1
  8. # Describe/configure the source
  9. a1.sources.r1.type = netcat
  10. a1.sources.r1.bind = localhost
  11. a1.sources.r1.port = 44444
  13. # Describe the sink
  14. a1.sinks.k1.type = logger
  16. # Use a channel which buffers events in memory
  17. a1.channels.c1.type = memory
  18. a1.channels.c1.capacity = 1000
  19. a1.channels.c1.transactionCapacity = 100
  21. # Bind the source and sink to the channel
  22. a1.sources.r1.channels = c1
  23. a1.sinks.k1.channel = c1

2.1.2、监听FLUME端口

 bin/flume-ng agent --conf conf/ --name a1 --conf-file job/flume-netcat-logger.conf -Dflume.root.logger=INFO,console

bin/flume-ng agent -c conf/ -n a1 -f job/flume-netcat-logger.conf -Dflume.root.logger=INFO,console
参数 参数描述 参数的配置文件位置
—conf/-c 表示配置文件存储在conf/目录
—name/-n 表示给agent起名为a1
—conf-file/-f flume本次启动读取的配置文件是在job文件夹下的flume-telnet.conf文件。
-Dflume.root.logger=INFO,console -D表示flume运行时动态修改flume.root.logger参数属性值，并将控制台日志打印级别设置为INFO级别。日志级别包括:log、info、warn、error。 /opt/module/flume-1.9.0-bin/conf/log4j.properties

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2.1.3、使用netcat工具向本机的44444端口发送内容

nc localhost 44444

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2.2、实时监控单个追加文件

2.2.1、编辑配置文件

# example.conf: A single-node Flume configuration

# 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 /home/atguigu/flume/log/abc.log

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /flume/events/%y-%m-%d/%H%M/%S
a1.sinks.k1.hdfs.filePrefix = events-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 10
a1.sinks.k1.hdfs.roundUnit = minute
a1.sinks.k1.hdfs.fileType = DataStream
a1.sinks.k1.hdfs.useLocalTimeStamp = true

# Use a channel which buffers events in memory
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

2.2.2、使用命令向文件中发送数据

echo "hello world" >> abc.log
echo "FLUME TEST" >> abc.log 
echo "FLUME TEST" >> abc.log 
echo "hello world" >> abc.log

结果展示:

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对于所有与时间相关的转义序列，Event Header中必须存在以 “timestamp”的key（除非hdfs.useLocalTimeStamp设置为true，此方法会使用TimestampInterceptor自动添加timestamp）。
a3.sinks.k3.hdfs.useLocalTimeStamp = true
如下:
image.png

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2.3、实时监控目录下多个新文件

2.3.1 编辑配置文件

# example.conf: A single-node Flume configuration

# Name the components on this agent
a1.sources = r1
a1.sinks = k1
a1.channels = c1

# Describe/configure the source
a1.sources.r1.type = spooldir
a1.sources.r1.spoolDir = /home/atguigu/flume/spool
a1.sources.r1.fileHeader = true
a1.sources.r1.fileSuffix = COMPLETED
a1.sources.r1.includePattern = .*log

# Describe the sink
a1.sinks.k1.type = hdfs
a1.sinks.k1.hdfs.path = /flume/events/%y-%m-%d/%H%M/%S
a1.sinks.k1.hdfs.filePrefix = events-
a1.sinks.k1.hdfs.round = true
a1.sinks.k1.hdfs.roundValue = 10
a1.sinks.k1.hdfs.roundUnit = minute
a1.sinks.k1.hdfs.fileType = DataStream
a1.sinks.k1.hdfs.useLocalTimeStamp = true

# Use a channel which buffers events in memory
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