CentOS7搭建Flume1.6环境

写在最前，后面测试会用到HDFS2，所以本次环境搭建是在Hadoop2.6.1，三节点的基础上完成的。

（关于搭建Hadoop环境，可参考：https://blog.csdn.net/weixin_39400271/article/details/89057884）

说明：

集群环境：

Master 192.168.112.10

Slave1 192.168.112.11

Slave2 192.168.112.12

#master，表示在master节点上操作；

#master，#slave1，#slave2，表示在三个节点上都要操作；

一、准备工作

下载软件包，到flume官网下载tgz压缩包，并解压：

#Master

cd /usr/local/src/
wget http://mirror.bit.edu.cn/apache/flume/1.6.0/apache-flume-1.6.0-bin.tar.gz

tar zxvf apache-flume-1.6.0-bin.tar.gz

二、配置文件、测试

cd ./conf/

#NetCat测试

vim flume-netcat.conf

输入配置内容：

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

# Describe/configuration the source
agent.sources.r1.type = netcat
agent.sources.r1.bind = 192.168.112.10
agent.sources.r1.port = 44444

# Describe the sink
agent.sinks.k1.type = logger

# Use a channel which buffers events in memory
agent.channels.c1.type = memory
agent.channels.c1.capacity = 1000
agent.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
agent.sources.r1.channels = c1
agent.sinks.k1.channel = c1 

验证：

开启动一个master窗口，作为#Server

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

再开启一个master窗口，作为#client

telnet master 44444

#Exec测试

vim flume-exec.conf

添加内容：

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

# Describe/configuration the source
agent.sources.r1.type = exec
agent.sources.r1.command = tail -f /usr/local/src/apache-flume-1.6.0-bin/data/hadoop/flume/test.txt

# Describe the sink
agent.sinks.k1.type = logger

# Use a channel which buffers events in memory
agent.channels.c1.type = memory
agent.channels.c1.capacity = 1000
agent.channels.c1.transactionCapacity = 100

# Bind the source and sink to the channel
agent.sources.r1.channels = c1
agent.sinks.k1.channel = c1 

#Server

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

#Client

while true;do echo `date` >> /usr/local/src/apache-flume-1.6.0-bin/data/hadoop/flume/test.txt ; sleep 1; done

#Avro测试

vim flume-avro.conf

添加内容：、

# Define a memory channel called c1 on agent
agent.channels.c1.type = memory

# Define an avro source alled r1 on agent and  tell it
agent.sources.r1.channels = c1
agent.sources.r1.type = avro
agent.sources.r1.bind = 192.168.112.10
agent.sources.r1.port = 44444

# Describe/configuration the source
agent.sinks.k1.type = hdfs
agent.sinks.k1.channel = c1
agent.sinks.k1.hdfs.path = hdfs://master:9000/flume_data_pool
agent.sinks.k1.hdfs.filePrefix = events-
agent.sinks.k1.hdfs.fileType = DataStream
agent.sinks.k1.hdfs.writeFormat = Text
agent.sinks.k1.hdfs.rollSize = 0
agent.sinks.k1.hdfs.rollCount= 600000
agent.sinks.k1.hdfs.rollInterval = 600

agent.channels = c1
agent.sources = r1
agent.sinks = k1

#Server

./bin/flume-ng agent --conf conf --conf-file conf/flume-avro.conf --name=agent -Dflume.root.logger=DEBUG,console

#Client

./bin/flume-ng avro-client --conf conf -H master -p 44444 -F /home/badou/flume_test/monitor_source/3.txt -Dflume.root.logger=DEBUG,consol

# Netcat To Avro测试

原理：

#master

创建flume-netcat2avro.conf文件

添加内容：

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

# Describe/configure the source
a1.sources.r1.type = netcat
a1.sources.r1.bind = 192.168.112.10
a1.sources.r1.port = 44444
a1.sources.r1.channels = c1

#Use a channel which buffers events in memory
a1.channels.c1.type = memory
a1.channels.c1.keep-alive = 10
a1.channels.c1.capacity = 100000
a1.channels.c1.transactionCapacity = 100000

# Describe /configure the sink/next source
a1.sinks.k1.type = avro
a1.sinks.k1.channel = c1
a1.sinks.k1.hostname = 192.168.112.11
a1.sinks.k1.port = 44444

在master的一个终端启动flume：

./bin/flume-ng agent -c conf -f conf/flume-netcat2avro.conf -n a1 -Dflume.root.logger=INFO,console

#slave1

创建flume-netcat2avro.conf文件

添加内容：

# Name the components on this agent
a2.sources = r1
a2.sinks = k1
a2.channels = c1

#Describe/configure the source
a2.sources.r1.type = avro
a2.sources.r1.channels = c1
a2.sources.r1.bind = 192.168.112.11
a2.sources.r1.port = 44444

# Describe the sink
a2.sinks.k1.type = logger
a2.sinks.k1.channel = c1

# Use a channel which buffers events in memory
a2.channels.c1.type = memory
a2.channels.c1.keep-alive = 10
a2.channels.c1.capacity = 100000
a2.channels.c1.transactionCapacity = 100000

在slave1的一个终端启动flume：

./bin/flume-ng agent -c conf -f conf/flume-netcat2avro.conf -n a2 -Dflume.root.logger=INFO,console

再打开一个master终端，因为master的source源类型是netcat，所以连接用telnet方式：

telnet master 44444

查看刚才启动flume的slave1终端：