尚硅谷大数据技术之Flume(新)第4章 Flume监控之Ganglia

4.1 Ganglia的安装与部署

1) 安装httpd服务与php

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

2) 安装其他依赖

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

[atguigu@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

[atguigu@hadoop102 flume]$ sudo yum -y install ganglia-gmetad

[atguigu@hadoop102 flume]$ sudo yum -y install ganglia-web

[atguigu@hadoop102 flume]$ sudo yum install -y ganglia-gmond

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

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

修改为红颜色的配置

# 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

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

修改为:

data_source "hadoop102" 192.168.1.102

6) 修改配置文件/etc/ganglia/gmond.conf

[atguigu@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

  host = 192.168.1.102

  port = 8649

  ttl = 1

}

udp_recv_channel {

  # mcast_join = 239.2.11.71

  port = 8649

  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

[atguigu@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

尖叫提示: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:

[atguigu@hadoop102 flume]$ sudo setenforce 0

5) 启动ganglia

[atguigu@hadoop102 flume]$ sudo service httpd start

[atguigu@hadoop102 flume]$ sudo service gmetad start

[atguigu@hadoop102 flume]$ sudo service gmond start

6) 打开网页浏览ganglia页面

http://192.168.1.102/ganglia

尖叫提示: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:

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