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采集案例

时间:2017-09-28 20:49:29      阅读:205      评论:0      收藏:0      [点我收藏+]

标签:nsa   hdfs   服务器   user   col   web   ado   source   mat   

采集目录到HDFS

采集需求:某服务器的某特定目录下,会不断产生新的文件,每当有新文件出现,就需要把文件采集到HDFS中去

根据需求,首先定义以下3大要素

  1. 采集源,即source——监控文件目录 :  spooldir
  2. 下沉目标,即sink——HDFS文件系统  :  hdfs sink
  3.  sourcesink之间的传递通道——channel,可用file channel 也可以用内存channel

 

配置文件编写:

#定义三大组件的名称
agent1.sources = source1
agent1.sinks = sink1
agent1.channels = channel1

# 配置source组件
agent1.sources.source1.type = spooldir
agent1.sources.source1.spoolDir = /home/hadoop/logs/
agent1.sources.source1.fileHeader = false

#配置拦截器
agent1.sources.source1.interceptors = i1
agent1.sources.source1.interceptors.i1.type = host
agent1.sources.source1.interceptors.i1.hostHeader = hostname

# 配置sink组件
agent1.sinks.sink1.type = hdfs
agent1.sinks.sink1.hdfs.path =hdfs://hdp-node-01:9000/weblog/flume-collection/%y-%m-%d/%H-%M
agent1.sinks.sink1.hdfs.filePrefix = access_log
agent1.sinks.sink1.hdfs.maxOpenFiles = 5000
agent1.sinks.sink1.hdfs.batchSize= 100
agent1.sinks.sink1.hdfs.fileType = DataStream
agent1.sinks.sink1.hdfs.writeFormat =Text
agent1.sinks.sink1.hdfs.rollSize = 102400
agent1.sinks.sink1.hdfs.rollCount = 1000000
agent1.sinks.sink1.hdfs.rollInterval = 60
#agent1.sinks.sink1.hdfs.round = true
#agent1.sinks.sink1.hdfs.roundValue = 10
#agent1.sinks.sink1.hdfs.roundUnit = minute
agent1.sinks.sink1.hdfs.useLocalTimeStamp = true
# Use a channel which buffers events in memory
agent1.channels.channel1.type = memory
agent1.channels.channel1.keep-alive = 120
agent1.channels.channel1.capacity = 500000
agent1.channels.channel1.transactionCapacity = 600

# Bind the source and sink to the channel
agent1.sources.source1.channels = channel1
agent1.sinks.sink1.channel = channel1

Channel参数解释:

capacity:默认该通道中最大的可以存储的event数量

trasactionCapacity:每次最大可以从source中拿到或者送到sink中的event数量

keep-aliveevent添加到通道中或者移出的允许时间

 

 

2.采集文件到HDFS

 

 

根据需求,首先定义以下3大要素

 

  • 采集源,即source——监控文件内容更新 :  exec  ‘tail -F file’
  • 下沉目标,即sink——HDFS文件系统  :  hdfs sink
  • Sourcesink之间的传递通道——channel,可用file channel 也可以用 内存channel

 

配置文件编写:.

agent1.sources = source1
agent1.sinks = sink1
agent1.channels = channel1

# Describe/configure tail -F source1
agent1.sources.source1.type = exec
agent1.sources.source1.command = tail -F /home/hadoop/logs/access_log
agent1.sources.source1.channels = channel1

#configure host for source
agent1.sources.source1.interceptors = i1
agent1.sources.source1.interceptors.i1.type = host
agent1.sources.source1.interceptors.i1.hostHeader = hostname

# Describe sink1
agent1.sinks.sink1.type = hdfs
#a1.sinks.k1.channel = c1
agent1.sinks.sink1.hdfs.path =hdfs://hdp-node-01:9000/weblog/flume-collection/%y-%m-%d/%H-%M
agent1.sinks.sink1.hdfs.filePrefix = access_log
agent1.sinks.sink1.hdfs.maxOpenFiles = 5000
agent1.sinks.sink1.hdfs.batchSize= 100
agent1.sinks.sink1.hdfs.fileType = DataStream
agent1.sinks.sink1.hdfs.writeFormat =Text
agent1.sinks.sink1.hdfs.rollSize = 102400
agent1.sinks.sink1.hdfs.rollCount = 1000000
agent1.sinks.sink1.hdfs.rollInterval = 60
agent1.sinks.sink1.hdfs.round = true
agent1.sinks.sink1.hdfs.roundValue = 10
agent1.sinks.sink1.hdfs.roundUnit = minute
agent1.sinks.sink1.hdfs.useLocalTimeStamp = true

# Use a channel which buffers events in memory
agent1.channels.channel1.type = memory
agent1.channels.channel1.keep-alive = 120
agent1.channels.channel1.capacity = 500000
agent1.channels.channel1.transactionCapacity = 600

# Bind the source and sink to the channel
agent1.sources.source1.channels = channel1
agent1.sinks.sink1.channel = channel1

更多sourcesink组件

Flume支持众多的sourcesink类型,详细手册可参考官方文档

http://flume.apache.org/FlumeUserGuide.html

 

采集案例

标签:nsa   hdfs   服务器   user   col   web   ado   source   mat   

原文地址:http://www.cnblogs.com/duan2/p/7608285.html

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