yum -y install apr-devel apr-util check-devel cairo-devel pango-devel libxml2-devel rpmbuild glib2-devel dbus-devel freetype-devel fontconfig-devel gcc-c++ expat-devel python-devel libXrender-devel

wget http://download.fedora.redhat.com/pub/epel/5/i386/libconfuse-2.5-4.el5.i386.rpm
wget http://download.fedora.redhat.com/pub/epel/5/i386/libconfuse-devel-2.5-4.el5.i386.rpm

wget http://download.fedora.redhat.com/pub/epel/5/x86_64/libconfuse-2.5-4.el5.x86_64.rpm
wget http://download.fedora.redhat.com/pub/epel/5/x86_64/libconfuse-devel-2.5-4.el5.x86_64.rpm

rpm –ivh libconfuse-2.5-4.el5.i386.rpm libconfuse-devel-2.5-4.el5.i386.rpm

wget http://oss.oetiker.ch/rrdtool/pub/rrdtool.tar.gz
tar zxvf rrdtool*
cd rrdtool-*
./configure --prefix=/usr
make
make install

ll /usr/include/rrd.h
ll /usr/lib/librrd.a

find / -name rrd.h
find / -name librrd.a

ln -s /usr/local/rrd.h /usr/include/rrd.h
ln -s /usr/local/librrd.a /usr/lib/librrd.a

tar –zxvf ganglia-3.1.2.tar.gz
cd ganglia-3.1.2.tar.gz
./configure --with-gmetad
make
make install

cd /tmp/ganglia-3.1.2/                                       //假设你的ganglia在此目录
mkdir -p /var/www/html/ganglia/                         //创建网站主目录下ganglia文件夹，用来访问ganglia
cp -a web/* /var/www/html/ganglia/                   //拷贝ganglia网站代码到该目录
cp gmetad/gmetad.init /etc/rc.d/init.d/gmetad     //拷贝gmetad服务启动脚本
cp gmond/gmond.init /etc/rc.d/init.d/gmond        //拷贝gmond服务启动脚本
mkdir /etc/ganglia                                             //创建配置文件主目录
gmond -t | tee /etc/ganglia/gmond.conf              //生成gmond服务配置文件
cp gmetad/gmetad.conf /etc/ganglia/                  //拷贝gmetad服务配置文件
mkdir -p /var/lib/ganglia/rrds                                //创建rrd文件存放目录
chown nobody:nobody /var/lib/ganglia/rrds           //属主和属组都为nobody
chkconfig --add gmetad                                     //将服务交给chkconfig管理
chkconfig --add gmond                                      //同上

vi /etc/ganglia/gmond.conf //修改以下字段
cluster {
name = "cluster name" //你要监控的集群名，一般我们只改这一项，可以是任意值
owner = " unspecified "
latlong = "unspecified"
url = "unspecified"
}

ip route add 239.2.11.71 dev eth1

service gmond start
service gmetad start
service httpd restart

vi mynodes

192.168.10.1
192.168.10.2
192.168.10.3
192.168.10.4
192.168.10.5

vi ganglia.sh

for i in `cat mynodes`; do
scp /usr/bin/gmetric $i:/usr/bin
scp /usr/sbin/gmond $i:/usr/sbin/gmond
ssh $i mkdir -p /etc/ganglia/
scp /etc/ganglia/gmond.conf $i:/etc/ganglia/
scp /etc/init.d/gmond $i:/etc/init.d/
scp /usr/lib64/libganglia-3.1.2.so.0 $i:/usr/lib64/
scp /lib64/libexpat.so.0 $i:/lib64/
scp /usr/lib64/libconfuse.so.0 $i:/usr/lib64/
scp /usr/lib64/libapr-1.so.0 $i:/usr/lib64/
scp -r /usr/lib64/ganglia $i:/usr/lib64/
ssh $i service gmond start
done

chmod 755 ganglia.sh
./ganglia.sh

ll /usr/bin/gmetric

scp root@192.168.10.100:/usr/bin/gmetric /usr/bin/ //假设你的监控服务器为192.168.10.100

vi /root/mcd_gmetric.sh //以下内容


#!/bin/bash

### $Id: mcd_gmetric.sh 16661 2006-11-07 00:56:33Z ben $

### This script queries a memcached server running
### on localhost and reports a few statistics to
### ganglia.
### It reports
### *mcd_curr_items - the number of objects stored
### *mcd_curr_bytes - current bytes used
### *mcd_curr_conns - current number of connections
### *mcd_hit_perc - hits / gets for current time duration
### (current hit percentage)
### For more description on any of these metrics,
### see the protocols.txt file in the MCD docs.

### Copyright Simply Hired, Inc. 2006
### License to use, modify, and distribute under the GPL
### http://www.gnu.org/licenses/gpl.txt

VERSION=1.0

GMETRIC="/usr/bin/gmetric"
GMETRIC_ARGS="-c /etc/ganglia/gmond.conf"
STATEFILE="/var/lib/ganglia/metrics/mcd.stats"
ERROR_NOTROOT="/tmp/mcd_gmetric_notroot"
ERROR_CANT_CONNECT="/tmp/mcd_gmetric_cant_connect"
ERROR_CREATE="/tmp/mcd_gmetric_create_statefile_failed"
ERROR_GETS_EMPTY="/tmp/mcd_gets_empty"

MCD_CONF="/etc/sysconfig/memcached"

# get system configuration
if [ -e ${MCD_CONF} ]
then
source ${MCD_CONF}
MCD_PORT=${PORT}
fi
MCD_PORT=${MCD_PORT:-11211}

date=`date +%s`

if [ $UID -ne 0 ]
then
if [ -e $ERROR_NOTROOT ] ; then exit 1; fi
echo "Error: this script must be run as root."
touch $ERROR_NOTROOT
exit 1
fi
rm -f $ERROR_NOTROOT

if [ "x$1" == "x-h" ]
then
echo "Usage: mcd_gmetric.sh [--clean]"
echo " --clean delete all tmp files"
exit 0
fi

if [ "x$1" == "x--clean" ]
then
rm -f $STATEFILE $ERROR_NOTROOT $ERROR_CANT_CONNECT $ERROR_CREATE
retval=$?
if [ $retval -ne 0 ]
then
echo "failed to clean up."
exit 1
else
echo "All cleaned up."
exit 0
fi
fi

# if the GMETRIC program isn't installed, compain
if [ ! -e $GMETRIC ]
then
if [ -e $ERROR_GMETRIC ] ; then exit 1; fi
echo ""
echo "Error: GMETRIC doesn't seem to be installed."
echo "$GMETRIC doesn't exist."
echo ""
touch $ERROR_GMETRIC
exit 1
fi

# get current statistics
exec 3>&2 #turn off STDERR
exec 2>/dev/null
stats_array=(`echo "stats" | nc localhost $MCD_PORT`)
retval=$?
exec 2>&1 #turn on STDERR
exec 3>&-

if [ $retval -ne 0 ]
then
if [ -e $ERROR_CANT_CONNECT ] ; then exit 1 ; fi
echo "I can't connect to mcd."
echo "Bummer. "
touch $ERROR_CANT_CONNECT
exit 1
fi

mcd_curr_items=`echo ${stats_array[23]}|tr -c -d [0-9]` #this tr thing is because there's a trailing ^M on the string from netcat that breaks bc.
mcd_curr_bytes=`echo ${stats_array[29]}|tr -c -d [0-9]`
mcd_curr_conns=`echo ${stats_array[32]}|tr -c -d [0-9]`
mcd_total_gets=`echo ${stats_array[41]}|tr -c -d [0-9]`
mcd_total_sets=`echo ${stats_array[44]}|tr -c -d [0-9]`
mcd_total_hits=`echo ${stats_array[47]}|tr -c -d [0-9]`

if [ -z "$mcd_total_gets" ]
then
# this actually happens rather often for some reason, so I'm just going to fail silently.
# if [ -e $ERROR_GETS_EMPTY ] ; then exit 1 ; fi
# echo ""
# echo "ERROR: mcd_total_gets empty."
# echo ""
exit 1
fi
rm -f $ERROR_GETS_EMPTY


# save and turn off /STDERR for the statefile tests
exec 3>&2
exec 2>/dev/null

# if the statefile doesn't exist, we either havn't
# run yet or there's something bigger wrong.
if [ ! -e $STATEFILE ]
then
if [ ! -d `dirname $STATEFILE` ]
then
mkdir -p `dirname $STATEFILE`
fi
echo "$date $mcd_curr_items $mcd_curr_bytes $mcd_curr_conns $mcd_total_gets $mcd_total_sets $mcd_total_hits" > $STATEFILE
if [ ! -e $STATEFILE ]
then
# if it didn't exist and we couldn't create
# it, we should just scream bloody murder and die.
# only scream once though...
if [ -e $ERROR_CREATE ]
then
exit 1
fi
echo ""
echo "ERROR: couldn't create $STATEFILE"
echo ""
touch $ERROR_CREATE
exit 1
fi
echo "Created statefile. Exitting."
exit 0
fi

# restore stderr
exec 2>&3
exec 3>&-

old_stats_array=(`cat $STATEFILE`)
old_date=${old_stats_array[0]}
old_mcd_curr_items=${old_stats_array[1]}
old_mcd_curr_bytes=${old_stats_array[2]}
old_mcd_curr_conns=${old_stats_array[3]}
old_mcd_total_gets=${old_stats_array[4]}
old_mcd_total_sets=${old_stats_array[5]}
old_mcd_total_hits=${old_stats_array[6]}

echo "$date $mcd_curr_items $mcd_curr_bytes $mcd_curr_conns $mcd_total_gets $mcd_total_sets $mcd_total_hits" > $STATEFILE

time_diff=$(($date - $old_date))
mcd_total_gets_diff=$(($mcd_total_gets - $old_mcd_total_gets))
mcd_total_sets_diff=$(($mcd_total_sets - $old_mcd_total_sets))
mcd_total_hits_diff=$(($mcd_total_hits - $old_mcd_total_hits))

if [ $time_diff -eq 0 ]
then
if [ -e $ERROR_TIMEDIFF ] ; then exit 1 ; fi
echo "something is broken."
echo "time_diff is 0."
touch $ERROR_TIMEDIFF
exit 1
fi

# none of these numbers should be less than 1, but if they are, just send back 1.
if [ $mcd_total_gets_diff -le 1 ] ; then mcd_total_gets_diff=1 ; fi
if [ $mcd_total_sets_diff -le 1 ] ; then mcd_total_sets_diff=1 ; fi
if [ $mcd_total_hits_diff -le 1 ] ; then mcd_total_hits_diff=1 ; fi

mcd_gets_per_sec=`echo "scale=3;${mcd_total_gets_diff}/${time_diff}"|bc`
mcd_sets_per_sec=`echo "scale=3;${mcd_total_sets_diff}/${time_diff}"|bc`
mcd_hits_per_sec=`echo "scale=3;${mcd_total_hits_diff}/${time_diff}"|bc`
mcd_hit_perc=`echo "scale=3; ${mcd_total_hits_diff} * 100 / ${mcd_total_gets_diff}" | bc`


$GMETRIC $GMETRIC_ARGS --name="mcd_seconds_measured" --value=${time_diff} --type=uint32 --units="secs"
$GMETRIC $GMETRIC_ARGS --name="mcd_items_cached" --value=${mcd_curr_items} --type=uint32 --units="items"
$GMETRIC $GMETRIC_ARGS --name="mcd_bytes_used" --value=${mcd_curr_bytes} --type=uint32 --units="bytes"
$GMETRIC $GMETRIC_ARGS --name="mcd_conns" --value=${mcd_curr_conns} --type=uint32 --units="connections"
$GMETRIC $GMETRIC_ARGS --name="mcd_gets" --value=${mcd_gets_per_sec} --type=float --units="gps"
$GMETRIC $GMETRIC_ARGS --name="mcd_sets" --value=${mcd_sets_per_sec} --type=float --units="sps"
$GMETRIC $GMETRIC_ARGS --name="mcd_cache_hits" --value=${mcd_hits_per_sec} --type=float --units="hps"
$GMETRIC $GMETRIC_ARGS --name="mcd_cache_hit%" --value=${mcd_hit_perc} --type=float --units="%"

chmod 755 mcd_gmetric.sh
./mcd_gmetric.sh

crontab -e
/1 * * * * /root/mcd_gmetric.sh //设置每分钟将结果返回监控服务器