Flume 环境搭建

Dear 丶 2022-05-27 07:30 178阅读 0赞

搭建环境：(在高可用Hadoop集群上搭建flume1.7.0)
    系统：16.04
    master  vm01
    slave1  vm02
    slave2  vm03
    flume搭建在vm01上

下载Flume1.7.0

> cd /tools  
> tar -xzvf apache-flume-1.7.0-bin.tar.gz  
> mv apache-flume-1.7.0-bin flume1.7.0

\# chmod 777 -R /tools/flume1.7.0 \#给目录授权

配置环境变量

#FLUME_HOME 
    export FLUME_HOME=/home/hadoop/app/flume  
    export PATH=$PATH:$FLUME_HOME/bin

配置文件：

> cd app/flume/conf  
> cp flume-conf.properties.template flume-conf.properties  
> vim flume-conf.properties

flume-conf.properties配置如下：

# a.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/hadoop/data/flume
    a1.sources.r1.fileHeader = true
    a1.sources.r1.deserializer.outputCharset=UTF-8
    # Describe the sink
    a1.sinks.k1.type = hdfs
    a1.sinks.k1.hdfs.path = hdfs://vm01:9000/log
    a1.sinks.k1.hdfs.fileType = DataStream
    a1.sinks.k1.hdfs.writeFormat=Text
    a1.sinks.k1.hdfs.maxOpenFiles = 1
    a1.sinks.k1.hdfs.rollCount = 0
    a1.sinks.k1.hdfs.rollInterval = 0
    a1.sinks.k1.hdfs.rollSize = 1000000
    a1.sinks.k1.hdfs.batchSize = 100000
    # Use a channel which buffers events in memory
    a1.channels.c1.type = memory
    a1.channels.c1.capacity = 1000000
    a1.channels.c1.transactionCapacity = 100000
    # Bind the source and sink to the channel
    a1.sources.r1.channels = c1
    a1.sinks.k1.channel = c1

创建目录并授权

> mkdir /data/flume  
> chmod 777 -R /data/flume

注：hdfs的log目录，不用手动去创建，它会自动生成的

运行

# cd /app/flume/
     # bin/flume-ng agent --conf conf --conf-file conf/flume-conf.properties --name a1 -Dflume.root.logger=INFO,console

命令执行后，它会存在一个进程，一直在监听目录，所以会一直开着！  
在/data/flume目录下新建txt文件，会在对应的hdfs的flume目录下自动生成文件，并把txt中的数据复制过去。当再传入一个文件时，Flume会将txt中的内容添加到已创建的文件后面！如果关闭这个flume agent，重新开启一个，那么HDFS的log中，会重新生成一个文件进行收集！