CHD-5.3.6集群上Flume安装

Flume is a distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data. It has a simple and flexible architecture based on streaming data flows. It is robust and fault tolerant with tunable reliability mechanisms and many failover and recovery mechanisms. It uses a simple extensible data model that allows for online analytic application.

翻译：

Flume是一种分布式、可靠且可用的服务，用于高效地收集、聚合和移动大量日志数据。它具有基于流数据流的简单灵活的体系结构。它具有鲁棒性和容错性，具有可调的可靠性机制和许多故障转移和恢复机制。它使用一个简单的可扩展数据模型，允许在线分析应用程序。

web Server 端产生日志，Source到具体目录下获取日志文件，把日志Channel中，Sink写到HDFS上

Source → Channel  可以进行数据清洗

Channel → Sink      可以进行数据清洗

 vent是Flume数据传输的基本单元
Flume以事件的形式将数据从源头传送到最终的目的
Event由可选的header和载有数据的一个byte array构成
     载有的数据对flume是不透明的
     Header是容纳了key-value字符串对的无序集合，key在集合内是唯 一的。
     Header可以在上下文路由中使用扩展

 前提依赖：

 * 运行在有log的地方

 * 运行在LINUX

 * JVM

 解压：flume-ng-1.5.0-cdh5.3.6.tar.gz

mv apache-flume-1.5.0-cdh5.3.6-bin/  flume-1.5.0-cdh5.3.6

cd /home/hadoop/CDH5.3.6/flume-1.5.0-cdh5.3.6/conf

 cp flume-env.sh.template  flume-env.sh

vi flume-env.sh

export JAVA_HOME=/usr/local/jdk1.8

[hadoop@master flume-1.5.0-cdh5.3.6]$ bin/flume-ng 

Usage: bin/flume-ng <command> [options]...

commands:
  agent                     run a Flume agent
  avro-client               run an avro Flume client
  version                   show Flume version info

global options:
  --conf,-c <conf>          use configs in <conf> directory-Dproperty=value          sets a Java system property value

agent options:
  --name,-n <name>          the name of this agent (required)
  --conf-file,-f <file>     specify a config file (required if -z missing)

运行命令：

bin/flume-ng agent --conf conf --name agent-test --conf-file test.conf

bin/flume-ng agent -c conf  -n agent-test -f test.conf

配置一个a.conf

# The configuration file needs to define the sources, 
# the channels and the sinks.
# Sources, channels and sinks are defined per agent, 
# in this case called 'agent'

###define agent
a1.sources = r1
a1.channels = c1
a1.sinks = k1

### define sources
a1.sources.r1.type = netcat
a1.sources.r1.bind = master
a1.sources.r1.port = 44444


### define channel
a1.channels.c1.type = memory
a1.channels.c1.capacity = 1000
a1.channels.c1.transactionCapacity = 100


### define sink
a1.sinks.k1.type=logger
a1.sinks.k1.maxBytyesToLog = 2014



### bind the source and sinks  to the channel
a1.sources.r1.channels = c1
a1.sinks.k1.channel = c1

安装 xinetd

[root@master telnet]# ll
total 224
----rwxr-x. 1 hadoop hadoop  59120 Jun 22 23:49 telnet-0.17-47.el6_3.1.x86_64.rpm
----rwxr-x. 1 hadoop hadoop  37748 Jun 22 23:49 telnet-server-0.17-47.el6_3.1.x86_64.rpm
----rwxr-x. 1 hadoop hadoop 124280 Jun 22 23:49 xinetd-2.3.14-38.el6.x86_64.rpm
[root@master telnet]# rpm -ivh *.rpm
warning: telnet-0.17-47.el6_3.1.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Preparing...                ########################################### [100%]
   1:xinetd                 ########################################### [ 33%]
   2:telnet-server          ########################################### [ 67%]
   3:telnet                 ########################################### [100%]
[root@master telnet]#

启动服务：

[root@master telnet]# /etc/rc.d/init.d/xinetd  restart
Stopping xinetd:                                           [FAILED]
Starting xinetd:                                           [  OK  ]
[root@master telnet]# 

运行命令：

bin/flume-ng agent -c conf -n a1 -f conf/a.conf -D flume.root.logger=DEBUG,consol

查看端口：

[root@master flume-1.5.0-cdh5.3.6]# netstat -tnlp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State       PID/Program name   
tcp        0      0 192.168.1.30:19888          0.0.0.0:*                   LISTEN      3735/java           
tcp        0      0 0.0.0.0:10033               0.0.0.0:*                   LISTEN      3735/java           
tcp        0      0 0.0.0.0:50070               0.0.0.0:*                   LISTEN      2715/java           
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      1924/sshd           
tcp        0      0 127.0.0.1:631               0.0.0.0:*                   LISTEN      1685/cupsd          
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      2299/master         
tcp        0      0 0.0.0.0:50010               0.0.0.0:*                   LISTEN      2815/java           
tcp        0      0 0.0.0.0:50075               0.0.0.0:*                   LISTEN      2815/java           
tcp        0      0 192.168.1.30:10020          0.0.0.0:*                   LISTEN      3735/java           
tcp        0      0 0.0.0.0:50020               0.0.0.0:*                   LISTEN      2815/java           
tcp        0      0 192.168.1.30:9000           0.0.0.0:*                   LISTEN      2715/java           
tcp        0      0 192.168.1.30:50090          0.0.0.0:*                   LISTEN      2990/java           
tcp        0      0 :::22                       :::*                        LISTEN      1924/sshd           
tcp        0      0 ::1:631                     :::*                        LISTEN      1685/cupsd          
tcp        0      0 ::1:25                      :::*                        LISTEN      2299/master         
tcp        0      0 ::ffff:192.168.1.30:44444   :::*                        LISTEN      17488/java          
tcp        0      0 :::3306                     :::*                        LISTEN      2152/mysqld  

运行命令：bin/flume-ng agent -c conf -n a1 -f conf/a.conf -Dflume.root.logger=DEBUG,console

在另一个控制台

[hadoop@master ~]$ telnet master 44444
Trying 192.168.1.30...
Connected to master.
Escape character is '^]'.
hello flume
OK
hello world
OK

在控制台的运行命令下，会出现：