Flume安装

1 Flume安装地址

1） Flume官网地址
http://flume.apache.org/
2）文档查看地址
http://flume.apache.org/FlumeUserGuide.html
3）下载地址
http://archive.apache.org/dist/flume/

2 安装部署

1）将apache-flume-1.7.0-bin.tar.gz上传到linux的/opt/software目录下
2）解压apache-flume-1.7.0-bin.tar.gz到/opt/module/目录下

[chen@hadoop102 software]$ tar -zxf apache-flume-1.7.0-bin.tar.gz -C /opt/module/

3）修改apache-flume-1.7.0-bin的名称为flume

[chen@hadoop102 module]$ mv apache-flume-1.7.0-bin flume

4） 将flume/conf下的flume-env.sh.template文件修改为flume-env.sh，并配置flume-env.sh文件

[chen@hadoop102 conf]$ mv flume-env.sh.template flume-env.sh
[chen@hadoop102 conf]$ vi flume-env.sh
export JAVA_HOME=/opt/module/jdk1.8.0_144\

3.Flume监控之Ganglia

1 Ganglia的安装与部署

1. 安装httpd服务与php

   [chen@hadoop102 flume]$ sudo yum -y install httpd php
   

2. 安装其他依赖

   [chen@hadoop102 flume]$ sudo yum -y install rrdtool perl-rrdtool rrdtool-devel
   [chen@hadoop102 flume]$ sudo yum -y install apr-devel
   

3. 安装ganglia

   [atguigu@hadoop102 flume]$ sudo rpm -Uvh      
   http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm
   [chen@hadoop102 flume]$ sudo yum -y install ganglia-gmetad 
   [chen@hadoop102 flume]$ sudo yum -y install ganglia-web
   [chen@hadoop102 flume]$ sudo yum install -y ganglia-gmond
   

Ganglia由gmond、gmetad和gweb三部分组成。
gmond（Ganglia Monitoring Daemon）是一种轻量级服务，安装在每台需要收集指标数据的节点主机上。使用gmond，你可以很容易收集很多系统指标数据，如CPU、内存、磁盘、网络和活跃进程的数据等。
gmetad（Ganglia Meta Daemon）整合所有信息，并将其以RRD格式存储至磁盘的服务。
gweb（Ganglia Web）Ganglia可视化工具，gweb是一种利用浏览器显示gmetad所存储数据的PHP前端。在Web界面中以图表方式展现集群的运行状态下收集的多种不同指标数据。

4. 修改配置文件/etc/httpd/conf.d/ganglia.conf

[chen@hadoop102 flume]$ sudo vim /etc/httpd/conf.d/ganglia.conf

修改为如下配置：

# Ganglia monitoring system php web frontend
Alias /ganglia /usr/share/ganglia
<Location /ganglia>
  Order deny,allow
  #Deny from all
  Allow from all
  # Allow from 127.0.0.1
  # Allow from ::1
  # Allow from .example.com
</Location>

5. 修改配置文件/etc/ganglia/gmetad.conf

[chen@hadoop102 flume]$ sudo vim /etc/ganglia/gmetad.conf

6. 修改配置文件/etc/ganglia/gmond.conf

[chen@hadoop102 flume]$ sudo vim /etc/ganglia/gmond.conf 

修改为：

cluster {
  name = "hadoop102"
  owner = "unspecified"
  latlong = "unspecified"
  url = "unspecified"
}
udp_send_channel {
  #bind_hostname = yes # Highly recommended, soon to be default.
                       # This option tells gmond to use a source address
                       # that resolves to the machine's hostname.  Without
                       # this, the metrics may appear to come from any
                       # interface and the DNS names associated with
                       # those IPs will be used to create the RRDs.
  # mcast_join = 239.2.11.71
  #主机ip
  host = 192.168.1.102
  port = 8649
  ttl = 1
}
udp_recv_channel {
  # mcast_join = 239.2.11.71
  port = 8649
  #主机ip
  bind = 192.168.1.102
  retry_bind = true
  # Size of the UDP buffer. If you are handling lots of metrics you really
  # should bump it up to e.g. 10MB or even higher.
  # buffer = 10485760
}

7. 修改配置文件/etc/selinux/config

[chen@hadoop102 flume]$ sudo vim /etc/selinux/config

修改为：

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
#     enforcing - SELinux security policy is enforced.
#     permissive - SELinux prints warnings instead of enforcing.
#     disabled - No SELinux policy is loaded.
SELINUX=disabled
# SELINUXTYPE= can take one of these two values:
#     targeted - Targeted processes are protected,
#     mls - Multi Level Security protection.
SELINUXTYPE=targeted

提示：selinux本次生效关闭必须重启，如果此时不想重启，可以临时生效之：

[chen@hadoop102 flume]$ sudo setenforce 0

8). 启动ganglia

[chen@hadoop102 flume]$ sudo service httpd start
[chen@hadoop102 flume]$ sudo service gmetad start
[chen@hadoop102 flume]$ sudo service gmond start

9)打开网页浏览ganglia页面
http://192.168.1.102/ganglia
提示：如果完成以上操作依然出现权限不足错误，请修改/var/lib/ganglia目录的权限：

[chen@hadoop102 flume]$ sudo chmod -R 777 /var/lib/ganglia