Ganglia安装部署过程
ganglia由分三个部分组成gmond，gmetad、gweb。
- gmond负责采集数据（需要进行监测的节点都要安装）
- gmetad负责接收gmond收集的数据（只需要在部署Web服务的节点安装）
- gweb负责展现gmetad的数据（只需要在部署Web服务的节点安装）
第一步 安装文件
- 安装epel源，安装命令如下（所有节点都安装）
yum -y install epel-release
- 安装gmond（采集数据的节点安装）
yum -y install ganglia-gmond
- 下载gmetad（Web服务节点安装）
yum -y install ganglia-gmetad
- 下载 gweb（Web服务节点安装）
sudo yum -y install httpd php # 需要额外安装httpd、php
sudo yum -y install ganglia-web
第二步 配置文件
- 修改配置文件vim /etc/httpd/conf.d/ganglia.conf
# Ganglia monitoring system php web frontend
Alias /ganglia /usr/share/ganglia
<Location /ganglia>
Require all granted
#Order deny,allow
#Deny from all
#Allow from all
# Allow from 127.0.0.1
# Allow from ::1
# Allow from .example.com
</Location>
- 修改配置文件/etc/ganglia/gmetad.conf
data_source “hadoop202” 192.168.88.202
- 修改配置文件/etc/ganglia/gmond.conf【这里一个节点配置完，通过scp同步所有节点】（注意：重点关注name，bind以及host的配置信息）
[atguigu@hadoop102 flume]$ sudo vim /etc/ganglia/gmond.conf
修改为：
cluster {
name = "hadoop202" ###名字要和gmetad中的相同
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 = 192.168.88.202 ###接收数据的节点IP地址
port = 8649
ttl = 1
}
udp_recv_channel {
# mcast_join = 239.2.11.71
port = 8649
bind = 192.168.88.202 ###节点本机的IP地址
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
}
- 修改配置文件/etc/selinux/config【注意：需要重启后才生效】
SELINUX=disabled # 解决冲突
第三步 启动Ganglia
systemctl start httpd.service
systemctl start gmetad.service
systemctl start gmond.service
权限问题
- 关闭防火墙
systemctl stop firewalld
- 授权
chmod -R 777 /var/lib/ganglia