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Í»ÆÆLVSÆ¿¾±£¬LVS Cluster²¿Êð£¨OSPF + LVS£©
 
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LVS´ó¼ÒÓ¦¸ÃºÜÊìϤ£¬Õâ¿îÓÅÐãµÄ¿ªÔ´Èí¼þ»ù±¾³ÉΪÁËIP¸ºÔؾùºâµÄ´úÑÔ´Ê¡£µ«ÔÚʵ¼ÊµÄÉú²ú»·¾³ÖлᷢÏÖ£¬LVSµ÷¶ÈÔÚ´óѹÁ¦ÏºÜÈÝÒ׾ͲúÉúÆ¿¾±£¬ÆäÖÐÆ¿¾±°üÀ¨ipvsÄÚºËÄ£¿éµÄÏÞÖÆ£¬CPUÈíÖжϣ¬Íø¿¨ÐÔÄܵȣ¬µ±È»ÕâЩ¶¼ÊÇ¿ÉÒÔµ÷Óŵ쬹ØÓÚLVSµÄµ÷ÓÅ£¬»áÔÚÕâÀïÏêϸ½² LVSµ÷ÓŹ¥ÂÔ ¡£»Øµ½Ö÷Ì⣬Äǵ±ÎÞ·¨±ÜÃâµÄµ¥Ì¨LVSµ÷¶È»ú³öÏÖÁËÐÔÄÜÆ¿¾±£¬ÓÐʲô°ì·¨ÄØ£¿ÔÚ±¾ÎľÍÀ´½éÉÜÈçºÎºáÏòÀ©Õ¹LVSµ÷¶È»ú

¼Ü¹¹¼òͼ

ÈçÉÏͼÈý²ãÉ豸µÄ·ÓÉ±í£¬VIPµØÖ·183.60.153.100¶ÔÓ¦nexthopÓÐÈý¸öµØÖ·£¬ÕâÈý¸öµØÖ·ÊÇÈý̨lvsµ÷¶È»úµÄµØÖ·¡£ÕâÑù±ã¿É´ïµ½Ð§¹û£ºÓû§·ÃÎÊ------>VIP------>Èý̨LVSµ÷¶È»ú------>·Ö·¢µ½¶ą̀RealServe

¼Ü¹¹ÓÅÊÆ

1.LVSµ÷¶È»ú×ÔÓÉÉìËõ£¬ºáÏòÀ©Õ¹£¨×î´ó8̨£¬ÊÜÏÞÓÚÈý²ãÉ豸ÔÊÐíµÄµÈ¼Û·ÓÉÊýÄ¿£©

2.LVSµ÷¶È×ÊÔ´È«ÀûÓã¬All Active¡£²»´æÔÚ±¸·Ý»ú

²¿Êð·½·¨

1.Ó²¼þ×ÊÔ´×¼±¸

Èý²ãÉ豸£º ±¾ÎÄÓõÄÊÇh3c 5800Èý²ã½»»»»ú

LVSµ÷¶È»úÈý̨£º 192.168.0.2 192.168.2.2 192.168.3.2

RealserverÈý̨: 183.60.153.101 183.60.153.102 183.60.153.103

2.Èý²ãÉ豸OSPFÅäÖÃ

#²éÕÒÓëÈý²ã½»»»Óëlvsµ÷¶ÈÏàÁ¬µÄ¶Ë¿Ú£¬ÔÚ±¾ÎĶ˿ڷֱðΪ g1/0/2 g1/0/3 g1/0/6

#°Ñg1/0/2¸ÄΪÈý²ã¶Ë¿Ú£¬²¢ÅäÉÏIP

interface GigabitEthernet1/0/2
port link-mode route
ip address 192.168.0.1 255.255.255.0

#ÅäÖÃospfµÄ²ÎÊý, timer helloÊÇ·¢ËÍhello°üµÄ¼ä¸ô,timer deadÊÇ´æ»îµÄËÀÍöʱ¼ä¡£ ĬÈÏÊÇ10£¬40¡£
#hello°üÊÇospfÀïÃæÎ¬³ÖÁÚ¾Ó¹ØÏµµÄ±¨ÎÄ£¬ÕâÀïÅäÖÃÊÇÿÃë·¢ËÍÒ»¸ö£¬ µ±µ½4Ã뻹ûÓÐÊÕµ½Õâ¸ö±¨ÎÄ£¬¾Í»áÈÏΪÕâ¸öÁÚ¾ÓÒѾ­¶ªÊ§£¬ÐèÒªÐ޸ķÓÉ
ospf timer hello 1
ospf timer dead 4
ospf dr-priority 100

#Èç´ËÀàÍÆ£¬°Ñg1/0/3 g1/0/6¶¼ÅäÖÃÉÏ

interface GigabitEthernet1/0/3
port link-mode route
ip address 192.168.3.1 255.255.255.0

ospf timer hello 1
ospf timer dead 4
ospf dr-priority 99



interface GigabitEthernet1/0/6
port link-mode route
ip address 192.168.2.1 255.255.255.0

ospf timer hello 1
ospf timer dead 4
ospf dr-priority 98



#ÅäÖÃospf
ospf 1
area 0.0.0.0
network 192.168.0.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 192.168.2.0 0.0.0.255

3.LVSµ÷¶È»úµÄOSPFÅäÖÃ

a.°²×°Èí·ÓÉÈí¼þquagga

yum ¨Cy install quagga

b.ÅäÖÃzerba.conf

vim /etc/quagga/zebra.conf

hostname lvs-route-1
password xxxxxx
enable password xxxxxx

log file /var/log/zebra.log
service password-encryption

c.ÅäÖÃospfd.conf

vim /etc/quagga/ospfd.conf

 

#ospfµÄÅäÖÃÀàËÆÓÚÉÏÃæÈý²ãÉ豸£¬×¢ÒâÐèÒª°ÑvipÉùÃ÷³öÈ¥(183.60.153.100)

log file /var/log/ospf.log
log stdout
log syslog
interface eth0
ip ospf hello-interval 1
ip ospf dead-interval 4
router ospf
ospf router-id 192.168.0.1
log-adjacency-changes
auto-cost reference-bandwidth 1000
network 183.60.153.100/32 area 0.0.0.0
network 192.168.0.0/24 area 0.0.0.0

d.¿ªÆôIPת·¢

sed ¨Ci ¡®/net.ipv4.ip_forward/d¡¯ /etc/sysctl.conf

echo "net.ipv4.ip_forward = 1" >> /etc/sysctl.confsysctl ¨Cp

e.¿ªÆô·þÎñ

/etc/init.d/zebra start

/etc/init.d/ospfd start

chkconfig zebra on

chkconfig ospfd on

4.LVS keepalivedÅäÖÃ

Ôڴ˼ܹ¹Ï£¬LVSÖ»ÄÜÅäÖóÉDRģʽ¡£Èç¹ûÒªÅäÖóÉNATģʽ£¬ÎÒµÄÏë·¨ÊÇ£¬ÐèÒª²ÎÕÕÉÏÃæµÄ·½Ê½ÈÃLVSµ÷¶È»úÓëÄÚÍøÈý²ãÉ豸ÅäÖÃospf£¬´Ë·½·¨Î´ÑéÖ¤£¬ÓÐÆäËû·½°¸Çë¸æÖª¡£

a.ÐÞ¸ÄÅäÖÃÎļþ keepalived.conf £¬ÔÚCluster¼Ü¹¹ÖУ¬ËùÓе÷¶È»úÓÃÏàͬµÄÅäÖÃÎļþ

vim /etc/keepalived/keepalived.conf

#keepalivedµÄÈ«¾ÖÅäÖÃglobal_defs { 
notification_email {

lxcong@gmail.com
}
notification_email_from lvs_notice@gmail.com
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id Ospf_LVS_1
}

#VRRPʵÀý£¬ÔÚÕâ¸ö¼Ü¹¹ÏÂËùÓеÄLVSµ÷¶È»ú¶¼ÅäÖóÉMASTER

vrrp_instance LVS_Cluster{ ##´´½¨ÊµÀý ʵÀýÃûΪLVS_Cluster

state MASTER #±¸·Ý·þÎñÆ÷ÉϽ«MASTER¸ÄΪBACKUP
interface eth0 ##VIP À¦°óÍø¿¨
virtual_router_id 100 ##LVS_ID ÔÚͬһ¸öÍøÂçÖУ¬LVS_IDÊÇΨһµÄ
priority 100 #Ñ¡¾ÙµÄÓÅÏȼ¶£¬ÓÅÏȼ¶´óµÄΪMASTER ±¸·Ý·þÎñÉϽ«100¸ÄΪ99
advert_int 1 #·¢ËÍvrrpµÄ¼ì²é±¨Îĵļä¸ô£¬µ¥Î»Ãë
authentication { ##ÈÏÖ¤ÐÅÏ¢¡£¿ÉÒÔÊÇPASS»òÕßAH
auth_type PASS
auth_pass 08856CD8
}
virtual_ipaddress {
183.60.153.100
}
}

#LVSʵÀý£¬ÔÚ±¾ÎIJÉÓõÄÊÇDRģʽ£¬WRRµ÷¶È·½Ê½¡£ÆäʵÔÚÕâÖּܹ¹ÏÂÒ²Ö»ÄÜʹÓÃDRģʽ

virtual_server 183.60.153.100 80 {
delay_loop 6
lb_algo wrr
lb_kind DR
persistence_timeout 60
protocol TCP

real_server 183.60.153.101 80 {
weight 1 # È¨ÖØ
inhibit_on_failure # Èô´Ë½Úµã¹ÊÕÏ£¬Ôò½«È¨ÖØÉèΪÁ㣨ĬÈÏÊÇ´ÓÁбíÖÐÒÆ³ý£©
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}

}

real_server 183.60.153.102 80 {
weight 1 # È¨ÖØ
inhibit_on_failure # Èô´Ë½Úµã¹ÊÕÏ£¬Ôò½«È¨ÖØÉèΪÁ㣨ĬÈÏÊÇ´ÓÁбíÖÐÒÆ³ý£©
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}

}

real_server 183.60.153.103 80 {
weight 1 # È¨ÖØ
inhibit_on_failure # Èô´Ë½Úµã¹ÊÕÏ£¬Ôò½«È¨ÖØÉèΪÁ㣨ĬÈÏÊÇ´ÓÁбíÖÐÒÆ³ý£©
TCP_CHECK {
connect_timeout 3
nb_get_retry 3
delay_before_retry 3
connect_port 80
}

}

}

b.Æô¶¯keepalived

/etc/init.d/keepalived start

chkconfig keepalived on

5.realserverÅäÖÃ

a.Ìí¼ÓÆô¶¯·þÎñ½Å±¾/etc/init.d/lvs_realserver

Çë×ÔÐа´ÐèÒªÐ޸Ľű¾ÖÐSNS_VIP±äÁ¿

#!/bin/sh
### BEGIN INIT INFO
# Provides: lvs_realserver
# Default-Start: 3 4 5
# Default-Stop: 0 1 6
# Short-Description: LVS real_server service scripts
# Description: LVS real_server start and stop controller
### END INIT INFO
# Copyright 2013 kisops.com
#
# chkconfig: - 20 80
#
# Author: k_ops_yw@ijinshan.com

#Óжà¸öÐéÄâIP£¬ÒÔ¿Õ¸ñ·Ö¸ô
SNS_VIP="183.60.153.100"
. /etc/rc.d/init.d/functions
if [[ -z "$SNS_VIP" ]];then
echo 'Please set vips in '$0' with SNS_VIP!'
fi

start(){
num=0
for loop in $SNS_VIP
do
/sbin/ifconfig lo:$num $loop netmask 255.255.255.255 broadcast $loop
/sbin/route add -host $loop dev lo:$num
((num++))
done
echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce
sysctl -e -p >/dev/null 2>&1
}

stop(){
num=0
for loop in $WEB_VIP
do
/sbin/ifconfig lo:$num down
/sbin/route del -host $loop >/dev/null 2>&1
((num++))
done
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce
echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore
echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce
sysctl -e -p >/dev/null 2>&1
}

case "$1" in
start)
start
echo "RealServer Start OK"
;;
stop)
stop
echo "RealServer Stoped"
;;
restart)
stop
start
;;
*)
echo "Usage: $0 {start|stop|restart}"
exit 1
esac
exit 0

b.Æô¶¯·þÎñ

service lvs_realserver start
chkconfig lvs_realserver on

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