一、ganglia基本介紹

ganglia是分散式的監控系統,有兩個Daemon,分別是:客戶端GangliaMonitoring Daemon (gmond)和服務端GangliaMeta Daemon (gmetad),還有GangliaPHP Web 

Frontend(基於web的動態訪問方式)組成是一個Linux下圖形化監控系統執行效能的軟體,介面美觀、豐富,功能強大而ganglia又依賴於一個web伺服器用來顯示叢集狀態，用rrdtool來儲存資料和生成曲線圖，需要xml解析因此需要expat，配置檔案解析需要libconfuse。

Ganglia是一個監控伺服器，叢集的開源軟體，能夠用曲線圖表現最近一個小時，最近一天，最近一週，最近一月，最近一年的伺服器或者叢集的cpu負載,記憶體,網路,硬碟等指標。

Ganglia的強大在於：ganglia服務端能夠通過一臺客戶端收集到同一個網段的所有客戶端的資料，ganglia叢集服務端能夠通過一臺服務端收集到它下屬的所有客戶端資料。這個體系設計表示一臺伺服器能夠通過不同的分層能夠管理上萬臺機器。這個功能是其他mrtg,nagios,cacti所不能比擬。

二、下載及安裝

ganglia-3.6.0.tar.gz下載地址http://down.51cto.com/data/1112626

[[email protected] ~]# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m

[[email protected] ~]# uname -a
Linux ws.zdqy.com 2.6.32-431.5.1.el6.i686 #1 SMP Tue Feb 11 21:56:33 UTC 2014 i686 i686 i386 GNU/Linux

[[email protected] tmp]# tar xf ganglia-3.6.0.tar.gz

[[email protected] ~]# yum -y install apr-devel apr-util check-devel cairo-develpango-devel libxml2-devel rpm-build glib2-devel dbus-develfreetype-devel fontconfig-devel gcc gcc-c++ expat-devel python-devellibXrender-devel

[[email protected] ganglia-3.6.0]# rpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
Retrieving http://dl.fedoraproject.org/pub/epel/6/i386/epel-release-6-8.noarch.rpm
warning: /var/tmp/rpm-tmp.ULcPJf: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEY
Preparing...                                        ########################################### [100%]
   1:epel-release                                   ########################################### [100%]
[[email protected] ganglia-3.6.0]# yum clean all

[[email protected] ganglia-3.6.0]# yum install libconfuse*  -y

Installing:
 libconfuse         i686   2.7-4.el6   epel    79 k
 libconfuse-devel   i686   2.7-4.el6   epel    17 k
[[email protected] ~]# yum install libart_lgpl-devel pcre-devel libtool -y

[[email protected] softs]# rpmbuild -tb ganglia-3.6.0.tar.gz 

Checking for unpackaged file(s): /usr/lib/rpm/check-files /root/rpmbuild/BUILDROOT/ganglia-3.6.0-1.i386
Wrote: /root/rpmbuild/RPMS/i386/ganglia-gmetad-3.6.0-1.i386.rpm
Wrote: /root/rpmbuild/RPMS/i386/ganglia-gmond-3.6.0-1.i386.rpm
Wrote: /root/rpmbuild/RPMS/i386/ganglia-gmond-modules-python-3.6.0-1.i386.rpm
Wrote: /root/rpmbuild/RPMS/i386/ganglia-devel-3.6.0-1.i386.rpm
Wrote: /root/rpmbuild/RPMS/i386/libganglia-3.6.0-1.i386.rpm
Executing(%clean): /bin/sh -e /var/tmp/rpm-tmp.zQCFRZ
+ umask 022
+ cd /root/rpmbuild/BUILD
+ cd ganglia-3.6.0
+ /bin/rm -rf /root/rpmbuild/BUILDROOT/ganglia-3.6.0-1.i386
+ exit 0

[[email protected] softs]# cd /root/rpmbuild/RPMS/
[[email protected] RPMS]# ls
i386
[[email protected] RPMS]# cd i386/
[[email protected] i386]# ls
ganglia-devel-3.6.0-1.i386.rpm
ganglia-gmetad-3.6.0-1.i386.rpm
ganglia-gmond-3.6.0-1.i386.rpm
ganglia-gmond-modules-python-3.6.0-1.i386.rpm
libganglia-3.6.0-1.i386.rpm

[[email protected] i386]# rpm -ivh *
Preparing...                                        ########################################### [100%]
   1:libganglia                                     ########################################### [ 20%]
   2:ganglia-gmond                                  ########################################### [ 40%]
   3:ganglia-devel                                  ########################################### [ 60%]
   4:ganglia-gmond-modules-p                        ########################################### [ 80%]
   5:ganglia-gmetad                                 ########################################### [100%]

[[email protected] ganglia]# yum install httpd  -y

[[email protected] conf]# /etc/init.d/gmond start
Starting GANGLIA gmond:                            [  OK  ]

[[email protected] conf]# /etc/init.d/gmetad start
Starting GANGLIA gmetad:                           [  OK  ]

[[email protected] softs]# wget http://ftp.jaist.ac.jp/pub/sourceforge/g/ga/ganglia/ganglia-web/3.5.12/ganglia-web-3.5.12.tar.gz

[[email protected] softs]# tar xf ganglia-web-3.5.12.tar.gz -C /var/www/html/

[[email protected] html]# mv ganglia-web-3.5.12.tar.gz /softs/
[[email protected] html]# mv ganglia-web-3.5.12 ganglia

三、除錯

訪問頁面http://192.168.0.104/ganglia/index.php

發現報錯

是因為相應的目錄沒有建，而且許可權不對

建立相應的目錄，將目錄許可權改為777

mkdir -p /var/www/html/ganglia/dwoo/compiled
mkdir -p /var/www/html/ganglia/dwoo/cache
chmod 777 /var/www/html/ganglia/dwoo/compiled
chmod 777 /var/www/html/ganglia/dwoo/cache

[[email protected] ganglia-web]# find . -type d 
.
./cache
./conf
./dwoo
./dwoo/cache
./dwoo/compiled
./dwoo/compiled/templates
./dwoo/compiled/templates/default
[[email protected] ganglia-web]# pwd

/var/lib/ganglia-web

然後重啟httpd，重新訪問

這是ganglia本機的一些監控資訊

下面還需要對被監控主機進行配置。

[[email protected] yum.repos.d]# rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm

[[email protected] yum.repos.d]# yum install  ganglia-gmond 

[[email protected] softs]# rpmbuild -tb ganglia-3.6.0.tar.gz 
error: Failed build dependencies:
        libpng-devel is needed by ganglia-3.6.0-1.i386
        python-devel is needed by ganglia-3.6.0-1.i386

解決方法

[[email protected] ~]# yum install libpng-devel python-devel  -y

Fatal error:

Errors were detected in your configuration.

• Unable to create overlay events file: /var/lib/ganglia-web/conf/events.json
• Unable to create event color map file: /var/lib/ganglia-web/conf/event_color.json
• DWOO compiled templates directory '/var/lib/ganglia-web/dwoo/compiled' is not writeable.
  Please adjust $conf['dwoo_compiled_dir'].
• DWOO cache directory '/var/lib/ganglia-web/dwoo/cache' is not writeable.
  Please adjust $conf['dwoo_cache_dir'].