前言
最近在研究云监控的相关工具,感觉ganglia颇有亮点,能从一个集群整体的角度来展现数据. 但是安装过程稍过复杂,相关依赖稍多,故写此文章与大家分享下.
本文不讲解相关原理,若想了解请参考其他资料.
本文目的: 即使之前未触过ganglia,也能按照文中步骤搭建自己的ganglia监控集群.
@Author duangr
@Website http://my.oschina.net/duangr/blog/181585
1.相关环境
Host Name | IP | OS | Arch |
duangr-1 | 192.168.56.10 | CentOS 6.4 | x86_64 |
duangr-2 | 192.168.56.11 | CentOS 6.4 | x86_64 |
duangr-3 | 192.168.56.12 | CentOS 6.4 | x86_64 |
全部主机确认:
iptables关闭
SELinux disabled
2.部署规划
项 | 值 |
监控服务主节点 | duangr-1 |
被监控从节点 | duangr-2 |
Ganglia监控服务的主节点需要安装:
ganglia
ganglia-web
php
apache
Ganglia被监控从节点需要安装:
ganglia
安装路径规划
项 | 值 |
ganglia安装路径 | /usr/local/ganglia |
php安装路径 |
/usr/local/php |
apache安装路径 |
/usr/local/apache2 |
ganglia-web安装路径 |
/export/home/ganglia/ganglia-web-3.5.10 |
rrds数据路径 |
/export/home/ganglia/rrds |
3.代码获取
4.前提依赖
4.1 主机环境检查(全部主机节点)
# rpm -q gcc glibc glibc-common rrdtool rrdtool-devel apr apr-devel expat expat-devel pcre pcre-devel dejavu-lgc-sans-mono-fonts dejavu-sans-mono-fonts
gcc-4.4.7-3.el6.x86_64
glibc-2.14.1-6.x86_64
glibc-common-2.14.1-6.x86_64
rrdtool-1.3.8-6.el6.x86_64
rrdtool-devel-1.3.8-6.el6.x86_64
apr-1.3.9-5.el6_2.x86_64
apr-devel-1.3.9-5.el6_2.x86_64
expat-2.0.1-11.el6_2.x86_64
expat-devel-2.0.1-11.el6_2.x86_64
pcre-7.8-6.el6.x86_64
pcre-devel-7.8-6.el6.x86_64
dejavu-lgc-sans-mono-fonts-2.30-2.el6.noarch.rpm
dejavu-sans-mono-fonts-2.30-2.el6.noarch.rpm
若有缺失,请先安装. 可通过如下几个镜像网站下载相关安装包:
4.2 dejavu
rpm -ivh dejavu-lgc-sans-mono-fonts-2.30-2.el6.noarch.rpm
rpm -ivh dejavu-sans-mono-fonts-2.30-2.el6.noarch.rpm
4.3 rrdtool
rpm -ivh rrdtool-1.3.8-6.el6.x86_64.rpm
rpm -ivh rrdtool-devel-1.3.8-6.el6.x86_64.rpm
4.4 apr
rpm -ivh apr-1.3.9-5.el6_2.x86_64.rpm
rpm -ivh apr-devel-1.3.9-5.el6_2.x86_64.rpm
4.5 libexpat
rpm -ivh expat-2.0.1-11.el6_2.x86_64.rpm
rpm -ivh expat-devel-2.0.1-11.el6_2.x86_64.rpm
4.6 libpcre
rpm -ivh pcre-7.8-6.el6.x86_64.rpm
rpm -ivh pcre-devel-7.8-6.el6.x86_64.rpm
4.7 confuse
confuse-2.7 http://www.nongnu.org/confuse/
tar -zxf confuse-2.7.tar.gz
cd confuse-2.7
./configure CFLAGS=-fPIC --disable-nls
make && make install
4.8 python
Python-2.7.3.tar.bz2 http://www.python.org/
tar -jxf Python-2.7.3.tar.bz2
./configure --prefix=/usr/local --enable-shared
make && make install
配置共享库
vi /etc/ld.so.conf
-- 增加如下内容
/usr/local/lib
启用配置
ldconfig
检查是否生效
ldconfig -v |grep "libpython2.7.so"
5.编译安装
5.1 安装ganglia (全部节点都要安装)
# tar -zxf ganglia-3.6.0.tar.gz
# cd ganglia-3.6.0
# ./configure --prefix=/usr/local/ganglia --with-gmetad --enable-gexec --with-python=/usr/local
Welcome to..
______ ___
/ ____/___ _____ ____ _/ (_)___ _
/ / __/ __ `/ __ \/ __ `/ / / __ `/
/ /_/ / /_/ / / / / /_/ / / / /_/ /
\____/\__,_/_/ /_/\__, /_/_/\__,_/
/____/
Copyright (c) 2005 University of California, Berkeley
Version: 3.6.0
Library: Release 3.6.0 0:0:0
Type "make" to compile.
# make && make install
5.2 安装ganglia-web (主节点安装)
# tar -zxf ganglia-web-3.5.10.tar.gz -C /export/home/ganglia/
# cd /export/home/ganglia/ganglia-web-3.5.10
# cp conf_default.php conf.php
vi conf.php 调整为如下内容
$conf['gweb_confdir'] = "/export/home/ganglia/ganglia-web-3.5.10";
$conf['gmetad_root'] = "/export/home/ganglia";
vi header.php
<?php
session_start();
ini_set('date.timezone','PRC'); --修改时区为本地时区
if (isset($_GET['date_only'])) {
$d = date("r");
echo $d;
exit(0);
}
配置临时目录
cd /export/home/ganglia/ganglia-web-3.5.10/dwoo
mkdir cache
chmod 777 cache
mkdir compiled
chmod 777 compiled
5.3 安装apache (主节点安装)
tar -zxf httpd-2.2.23.tar.gz
cd httpd-2.2.23
./configure --prefix=/usr/local/apache2
make && make install
5.4 安装php (主节点安装)
tar -zxf php-5.4.10.tar.gz
cd php-5.4.10
./configure --prefix=/usr/local/php --with-apxs2=/usr/local/apache2/bin/apxs --with-mysql=/usr
make && make install
5.5 使用apache发布ganglia-web (主节点安装)
vi /usr/local/apache2/conf/httpd.conf
....
Listen 80
....
<IfModule dir_module>
DirectoryIndex index.html index.php
AddType application/x-httpd-php .php
</IfModule>
....
# 在文件最后增加如下内容
# ganglia
Alias /ganglia "/export/home/ganglia/ganglia-web-3.5.10"
<Directory "/export/home/ganglia/ganglia-web-3.5.10">
AuthType Basic
Options None
AllowOverride None
Order allow,deny
Allow from all
</Directory>
启动httpd服务
/usr/local/apache2/bin/apachectl restart
6.配置Ganglia
6.1 配置gmetad (主节点配置)
cd ganglia-3.6.0
cp ./gmetad/gmetad.init /etc/init.d/gmetad
cp ./gmetad/gmetad.conf /usr/local/ganglia/etc/
vi /etc/init.d/gmetad --修改如下内容
GMETAD=/usr/local/ganglia/sbin/gmetad
vi /usr/local/ganglia/etc/gmetad.conf -- 修改如下内容
data_source "duangr-cluster" 10 duangr-1 duangr-2 duangr-3
xml_port 8651
interactive_port 8652
rrd_rootdir "/export/home/ganglia/rrds"
case_sensitive_hostnames 0
修改rrds数据目录所有者
chown -R nobody:nobody /export/home/ganglia/rrds
启动gmetad服务,并设为开机自动运行
service gmetad restart
chkconfig --add gmetad
6.2 配置gmond (全部节点配置)
cd ganglia-3.6.0
cp ./gmond/gmond.init /etc/init.d/gmond
./gmond/gmond -t > /usr/local/ganglia/etc/gmond.conf
vi /etc/init.d/gmond --修改如下内容
GMOND=/usr/local/ganglia/sbin/gmond
vi /usr/local/ganglia/etc/gmond.conf -- 修改如下内容
cluster {
name = "duangr-cluster"
owner = "nobody"
latlong = "unspecified"
url = "unspecified"
}
复制python module到ganglia部署目录
mkdir /usr/local/ganglia/lib64/ganglia/python_modules
cp ./gmond/python_modules/*/*.py /usr/local/ganglia/lib64/ganglia/python_modules
安装程序ganglia-3.6.0默认提供了一些python module的配置文件,只需要部署到 /usr/local/ganglia/etc/conf.d 目录下面即可生效
若对默认提供的这些监控脚本不太关心,可以跳过下面这步:
cp ./gmond/python_modules/conf.d/*.pyconf /usr/local/ganglia/etc/conf.d
启动gmond服务,并设为开机自动运行
service gmond restart
chkconfig --add gmond
7.监控页面
8.相关链接
来源:oschina
链接:https://my.oschina.net/u/1189023/blog/181585