Ganglia在linux上的下载安装

介绍

ganglia分三个部分，gmond，gmetad、gweb。gmond是安装到每一台机器，负责收集数据。gmetad不用安装到每一台，他负责接收gmond收集的数据，gweb也不用安装到每一台，主要负责展现gmetad的数据。

Ganglia下载

1.默认源找不到安装包，所以要安装epel源，安装命令如下

yum -y install epel-release

2.下载gmond

yum -y install ganglia-gmond

3.下载gmetad

yum -y install ganglia-gmetad

4.下载 gweb

sudo -y yum install httpd php # 需要额外安装httpd、php
sudo -y yum install ganglia-web

5.修改配置文件 sudo vim /etc/httpd/conf.d/ganglia.conf

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

6.修改配置文件/etc/ganglia/gmetad.conf

修改内容:

data_source “hadoop202” 192.168.88.202

7.修改配置文件/etc/ganglia/gmond.conf

[atguigu@hadoop102 flume]$ sudo vim /etc/ganglia/gmond.conf
修改为：
cluster {name = "hadoop202"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 = 239.2.11.71host = 192.168.88.202port = 8649ttl = 1
}
udp_recv_channel {# mcast_join = 239.2.11.71port = 8649bind = 192.168.88.202retry_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
}

注: 修改的内容主要有name,host,bind这三个

8.修改配置文件/etc/selinux/config

SELINUX=disabled # 解决冲突

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:

sudo setenforce 0

9.启动Ganglia

sudo systemctl start httpd.service
sudo systemctl start gmetad.service
sudo systemctl start gmond.service

10.问题:
浏览网站: http://192.168.88.202/ganglia , 到这里能打开就ok了
但是也可能会出现权限问题,无法访问
1.先确认您的防火墙是关闭的
2.修改ganglia文件的权限

sudo chmod -R 777 /var/lib/ganglia

3.修改上面的sudo vim /etc/httpd/conf.d/ganglia.conf 文件

#
# 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><Location /ganglia>#Order deny,allow# Deny from all# Allow from all# Allow from 127.0.0.1# Allow from ::1# Allow from .example.comRequire all granted
</Location>

这三种都做一下,如果还是没有解决权限问题, 我就没办法帮助你了!

将flume配置到监控

修改 flume/conf/flume-env.sh 文件,添加下面内容, 注意地址

JAVA_OPTS="-Dflume.monitoring.type=ganglia -Dflume.monitoring.hosts=192.168.9.102:8649 -Xms100m -Xmx200m"

开启flume监控

bin/flume-ng agent -c conf/ -n a1 -f job/netcat-flume-logger.conf
-Dflume.root.logger==INFO,console \
-Dflume.monitoring.type=ganglia
-Dflume.monitoring.hosts=192.168.88.202:8649

监控的字段说明: