2. 程式人生 > >SuSE11環境下Redis+Keepalived實現高可用技術

SuSE11環境下Redis+Keepalived實現高可用技術

阿新 • • 發佈：2018-08-08
keep starting pass prot x86_64 configure pid dev 修改

1．Redis配置信息
Redis部署使用兩臺服務器，實現Redis+keepalived，提供redis服務高可用，當主redis進程或服務器宕機之後，備redis進程或服務器繼續提供服務。

實現目的：主MASTER宕機後，從BACKUP接管VIP提供服務，升為MASTER，主MASTER恢復後狀態變為從BACKUP，不搶占回VIP，待新MASTER宕機後繼續接替VIP，重新升為MASTER

                 MASTER-->BACKUP-->MASTER 依次輪詢接管服務

服務器配置信息如下所示：

主機名/IP

端口

用途

JZSHPT-APP5/

10.133.214.15

6379

Redis主服務器

JZSHPT-APP6/

10.133.214.16

6379

Redis從服務器

2．Redis主服務器搭建
2.1．安裝redis
JZSHPT-APP5:/soft # tar -zxf redis-3.2.1.tar.gz -C /usr/local

JZSHPT-APP5:/soft # cd /usr/local/redis-3.2.1/

JZSHPT-APP5:/usr/local/redis-3.2.1 # make

JZSHPT-APP5:/usr/local/redis-3.2.1 # cd src && make install

JZSHPT-APP5:/usr/local # mv /usr/local/redis-3.2.1/ /usr/local/redis

1）redis配置文件修改

JZSHPT-APP5:/usr/local # vim /usr/local/redis/redis.conf

修改文件相關內容為：

protected-mode no

port 6379

daemonize yes

pidfile /usr/local/redis/redis.pid

logfile "/usr/local/redis/redis.log"

2）redis啟動腳本編寫（非必須）

JZSHPT-APP5:/usr/local/redis # vim /etc/init.d/redisd

#!/bin/sh

#chkconfig 345 86 14

#description Startup and Shutdown script for Redis-3.2.1

progdir=/usr/local/redis/src

progname=redis-server

daemon=$progdir/$progname

config=/usr/local/redis/redis.conf

pidfile=/usr/local/redis/redis.pid

desc="redis daemon"

scriptname=/etc/init.d/redisd

start()

{

if test -x $daemon;

then

echo -e "Starting $desc:$progname"

    if $daemon $config

    then

        echo -e "Start OK!!!"

    else

         echo -e "Start failed!!!"

    fi  

else

echo -e "Couldn‘t find Redis Server($daemon)"

fi

}

stop()

{

if test -e $pidfile;

then

    echo -e "Stopping $desc:$progname"

    if kill `cat $pidfile`

    then

        echo -e "stop OK!!!"

    else

        echo -e "Stop failed!!!"

    fi

else

    echo -e "No Redis Server($daemoon) running"

fi

}

restart()

{

echo -e "Restarting $desc:$progname"

stop

    start

}

status()

{

ps aux | grep $progname

}

case $1 in

start)

    start

;;

stop)

    stop

;;

restart)

restart

;;

status)

status

;;

*)

echo "Usage:$scriptnme{start|stop|restart|status}" >&2

exit 1

;;

esac

exit 0

JZSHPT-APP5:/usr/local/redis # chmod +x /etc/init.d/redisd

JZSHPT-APP5:/usr/local/redis # chkconfig --add redisd

2.2．安裝Keepalived
安裝keepalived前請自行安裝解決依賴關系（可能會涉及的軟件包為libopenssl-devel、zlib-devel、ipvsadm內核模塊等）

JZSHPT-APP5:/soft # tar -zxf keepalived-1.2.23.tar.gz

JZSHPT-APP5:/soft # cd keepalived-1.2.23/

JZSHPT-APP5:/soft/keepalived-1.2.23 # ./configure --prefix=/usr/local/keepalived/

JZSHPT-APP5:/soft/keepalived-1.2.23 # make && make install

1） keepalived配置文件編輯

JZSHPT-APP5:~ # mkdir -p /etc/keepalived/{scripts,log}

JZSHPT-APP5:~ # vim /usr/local/keepalived/etc/keepalived/

! Configuration File for keepalived

global_defs {

router_id Redis1_DEVEL

}

vrrp_script chk_redis {

     script "/etc/keepalived/scripts/redis_check.sh"

     interval 2

     timeout 2

     fall 3

}

vrrp_instance VI_1 {

 state BACKUP

 interface eth0

 virtual_router_id 51

 nopreempt

 priority 200

  advert_int 5

  authentication {

auth_type PASS

    auth_pass redis

 }

 virtual_ipaddress {

     10.133.214.50

 }

 track_script {

     chk_redis

}

    notify_master /etc/keepalived/scripts/redis_master.sh

     notify_backup /etc/keepalived/scripts/redis_backup.sh

     notify_fault  /etc/keepalived/scripts/redis_fault.sh

     notify_stop   /etc/keepalived/scripts/redis_stop.sh

}

2）keepalived啟動腳本配置

JZSHPT-APP5:~ # cp /soft/keepalived-1.2.23/keepalived/etc/init.d/keepalived.suse.init /etc/init.d/keepalived.suse

JZSHPT-APP5:~ # cp /usr/local/keepalived/sbin/keepalived /usr/local/sbin/

JZSHPT-APP5:~ # cp /usr/local/keepalived/etc/keepalived/ /etc/keepalived/

3）定義監控腳本

JZSHPT-APP5:~ # vim /etc/keepalived/scripts/redis_check.sh

#!/bin/sh

###/etc/keepalived/scripts/redis_check.sh

ALIVE=/usr/local/bin/redis-cli PING

if [ "$ALIVE" == "PONG" ]; then

echo $ALIVE

exit 0

else

echo $ALIVE

exit 1

fi

4）定義狀態切換為master時執行的腳本

JZSHPT-APP5:~ # vim /etc/keepalived/scripts/redis_master.sh

#!/bin/sh

###/etc/keepalived/scripts/redis_master.sh

REDISCLI="redis-cli"

LOGFILE="/etc/keepalived/log/redis-state.log"

pid=$$

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver]" >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] Run ‘SLAVEOF 10.133.214.16 6379‘" >> $LOGFILE

$REDISCLI SLAVEOF 10.133.214.16 6379 >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] wait 10 sec for data sync from old master" >> $LOGFILE

sleep 10

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] data rsync from old mater ok..." >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] Run slaveof no one,close master/slave" >> $LOGFILE

$REDISCLI SLAVEOF NO ONE >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] wait other slave connect...." >> $LOGFILE

5）定義狀態切換為backups時執行的腳本

JZSHPT-APP5:~ # vim /etc/keepalived/scripts/redis_backup.sh

#!/bin/bash

###/etc/keepalived/scripts/redis_backup.sh

REDISCLI="redis-cli"

LOGFILE="/etc/keepalived/log/redis-state.log"

pid=$$

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master]" >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] Being slave state..." >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] wait 10 sec for data sync from old master" >> $LOGFILE

sleep 10

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] data rsync from old mater ok..." >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] Run ‘SLAVEOF 10.133.214.16 6379‘" >> $LOGFILE

$REDISCLI SLAVEOF 10.133.214.16 6379 >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] slave connect to 192.18.3.21 ok..." >> $LOGFILE

6) 定義狀態切換為stop時執行的腳本

JZSHPT-APP5:~ # cp /etc/keepalived/scripts/redis_backup.sh /etc/keepalived/scripts/redis_stop.sh

7) 定義狀態切換為fault時執行的腳本

JZSHPT-APP5:~ # cp /etc/keepalived/scripts/redis_backup.sh /etc/keepalived/scripts/redis_fault.sh

2.2．安裝rsyslog實現keepalived日誌分離
1）安裝rsyslog軟件包

JZSHPT-APP5:/soft # rpm -ivh rsyslog-5.10.1-0.7.49.x86_64.rpm

2）修改rsyslog配置文件

JZSHPT-APP5:/soft # vim /etc/rsyslog.conf

140 #.;mail.none;news.none -/var/log/messages

141 .;mail.none;news.none;local0.none -/var/log/messages

153 #local0,local1.* -/var/log/localmessages

154 local0.* -/var/log/keepalived.log

155 local1.* -/var/log/localmessages

156 local2,local3.* -/var/log/localmessages

157 local4,local5.* -/var/log/localmessages

158 cal6,local7.* -/var/log/localmessages

3）修改rsyslog啟動腳本配置文件

根據/etc/init.d/syslog中的三個啟動選項，修改該文件內的”SYSLOG_DAEMON”選項

JZSHPT-APP5:/soft # vim /etc/sysconfig/syslog

40 #SYSLOG_DAEMON="syslog-ng"

41 SYSLOG_DAEMON="rsyslogd"

4）修改Keepalived啟動腳本選項

JZSHPT-APP5:/soft # vim /etc/init.d/keepalived.suse

17 DAEMON_OPT="-d "

18 DAEMON_OPT="-d -D -S 0"

5）啟動rsyslog服務

JZSHPT-APP5:/soft # /etc/init.d/syslog start

2.3．啟動Redis和Keepalived
JZSHPT-APP5:~ # /etc/init.d/redisd start

JZSHPT-APP5:~ # /etc/init.d/keepalived.suse start

3．Redis從服務器搭建
3.1．安裝redis
JZSHPT-APP6:/soft # tar -zxf redis-3.2.1.tar.gz -C /usr/local

JZSHPT-APP6:/soft # cd /usr/local/redis-3.2.1/

JZSHPT-APP6:/usr/local/redis-3.2.1 # make

JZSHPT-APP6:/usr/local/redis-3.2.1 # cd src && make install

JZSHPT-APP6:/usr/local # mv /usr/local/redis-3.2.1/ /usr/local/redis

1）redis配置文件修改

JZSHPT-APP6:/usr/local # vim /usr/local/redis/redis.conf

修改文件相關內容為：

protected-mode no

port 6379

daemonize yes

pidfile /usr/local/redis/redis.pid

logfile "/usr/local/redis/redis.log"

2）redis啟動腳本編寫（非必須）

JZSHPT-APP6:/usr/local/redis # vim /etc/init.d/redisd

#!/bin/sh

#chkconfig 345 86 14

#description Startup and Shutdown script for Redis-3.2.1

progdir=/usr/local/redis/src

progname=redis-server

daemon=$progdir/$progname

config=/usr/local/redis/redis.conf

pidfile=/usr/local/redis/redis.pid

desc="redis daemon"

scriptname=/etc/init.d/redisd

start()

{

if test -x $daemon;

then

echo -e "Starting $desc:$progname"

    if $daemon $config

    then

        echo -e "Start OK!!!"

    else

         echo -e "Start failed!!!"

    fi  

else

echo -e "Couldn‘t find Redis Server($daemon)"

fi

}

stop()

{

if test -e $pidfile;

then

    echo -e "Stopping $desc:$progname"

    if kill `cat $pidfile`

    then

        echo -e "stop OK!!!"

    else

        echo -e "Stop failed!!!"

    fi

else

    echo -e "No Redis Server($daemoon) running"

fi

}

restart()

{

echo -e "Restarting $desc:$progname"

stop

    start

}

status()

{

ps aux | grep $progname

}

case $1 in

start)

    start

;;

stop)

    stop

;;

restart)

restart

;;

status)

status

;;

*)

echo "Usage:$scriptnme{start|stop|restart|status}" >&2

exit 1

;;

esac

exit 0

JZSHPT-APP6:/usr/local/redis # chmod +x /etc/init.d/redisd

JZSHPT-APP6:/usr/local/redis # chkconfig --add redisd

3.2．安裝Keepalived
安裝keepalived前請自行安裝解決依賴關系（可能會涉及的軟件包為libopenssl-devel、zlib-devel、ipvsadm內核模塊等）

JZSHPT-APP6:/soft # tar -zxf keepalived-1.2.23.tar.gz

JZSHPT-APP6:/soft # cd keepalived-1.2.23/

JZSHPT-APP6:/soft/keepalived-1.2.23 # ./configure --prefix=/usr/local/keepalived/

JZSHPT-APP6:/soft/keepalived-1.2.23 # make && make install

1）keepalived配置文件編輯

JZSHPT-APP6:~ # mkdir -p /etc/keepalived/{scripts,log}

JZSHPT-APP6:~ # vim /usr/local/keepalived/etc/keepalived/

! Configuration File for keepalived

global_defs {

router_id Redis2_DEVEL

}

vrrp_script chk_redis {

     script "/etc/keepalived/scripts/redis_check.sh"

     interval 2

     timeout 2

     fall 3

}

vrrp_instance VI_1 {

 state BACKUP

 interface eth0

 virtual_router_id 51

 priority 150

  advert_int 5

  authentication {

auth_type PASS

    auth_pass redis

 }

 virtual_ipaddress {

     10.133.214.50

 }

 track_script {

     chk_redis

}

    notify_master /etc/keepalived/scripts/redis_master.sh

     notify_backup /etc/keepalived/scripts/redis_backup.sh

     notify_fault  /etc/keepalived/scripts/redis_fault.sh

     notify_stop   /etc/keepalived/scripts/redis_stop.sh

}

2）keepalived啟動腳本配置

JZSHPT-APP6:~ # cp /soft/keepalived-1.2.23/keepalived/etc/init.d/keepalived.suse.init /etc/init.d/keepalived.suse

JZSHPT-APP6:~ # cp /usr/local/keepalived/sbin/keepalived /usr/local/sbin/

JZSHPT-APP6:~ # cp /usr/local/keepalived/etc/keepalived/ /etc/keepalived/

3）定義監控腳本

JZSHPT-APP6:~ # vim /etc/keepalived/scripts/redis_check.sh

#!/bin/sh

###/etc/keepalived/scripts/redis_check.sh

ALIVE=/usr/local/bin/redis-cli PING

if [ "$ALIVE" == "PONG" ]; then

echo $ALIVE

exit 0

else

echo $ALIVE

exit 1

fi

4）定義狀態切換為master時執行的腳本

JZSHPT-APP6:~ # vim /etc/keepalived/scripts/redis_master.sh

#!/bin/sh

###/etc/keepalived/scripts/redis_master.sh

REDISCLI="redis-cli"

LOGFILE="/etc/keepalived/log/redis-state.log"

pid=$$

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver]" >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] Run ‘SLAVEOF 10.133.214.15 6379‘" >> $LOGFILE

$REDISCLI SLAVEOF 10.133.214.15 6379 >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] wait 10 sec for data sync from old master" >> $LOGFILE

sleep 10

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] data rsync from old mater ok..." >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] Run slaveof no one,close master/slave" >> $LOGFILE

$REDISCLI SLAVEOF NO ONE >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] wait other slave connect...." >> $LOGFILE

5）定義狀態切換為backups時執行的腳本

JZSHPT-APP6:~ # vim /etc/keepalived/scripts/redis_backup.sh

#!/bin/bash

###/etc/keepalived/scripts/redis_backup.sh

REDISCLI="redis-cli"

LOGFILE="/etc/keepalived/log/redis-state.log"

pid=$$

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master]" >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] Being slave state..." >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] wait 10 sec for data sync from old master" >> $LOGFILE

sleep 10

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[master] data rsync from old mater ok..." >> $LOGFILE

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] Run ‘SLAVEOF 10.133.214.15 6379‘" >> $LOGFILE

$REDISCLI SLAVEOF 10.133.214.15 6379 >> $LOGFILE 2>&1

echo "date +‘%Y-%m-%d:%H:%M:%S‘|$pid|state:[slaver] slave connect to 10.133.214.15 ok..." >> $LOGFILE

6) 定義狀態切換為stop時執行的腳本

JZSHPT-APP6:~ # cp /etc/keepalived/scripts/redis_backup.sh /etc/keepalived/scripts/redis_stop.sh

7) 定義狀態切換為fault時執行的腳本

JZSHPT-APP6:~ # cp /etc/keepalived/scripts/redis_backup.sh /etc/keepalived/scripts/redis_fault.sh

3.3．安裝rsyslog實現keepalived日誌分離
1）安裝rsyslog軟件包

JZSHPT-APP5:/soft # rpm -ivh rsyslog-5.10.1-0.7.49.x86_64.rpm

2）修改rsyslog配置文件

JZSHPT-APP5:/soft # vim /etc/rsyslog.conf

140 #.;mail.none;news.none -/var/log/messages

141 .;mail.none;news.none;local0.none -/var/log/messages

153 #local0,local1.* -/var/log/localmessages

154 local0.* -/var/log/keepalived.log

155 local1.* -/var/log/localmessages

156 local2,local3.* -/var/log/localmessages

157 local4,local5.* -/var/log/localmessages

159 cal6,local7.* -/var/log/localmessages

3）修改rsyslog啟動腳本配置文件

根據/etc/init.d/syslog中的三個啟動選項，修改該文件內的”SYSLOG_DAEMON”選項

JZSHPT-APP5:/soft # vim /etc/sysconfig/syslog

40 #SYSLOG_DAEMON="syslog-ng"

41 SYSLOG_DAEMON="rsyslogd"

4）修改Keepalived啟動腳本選項

JZSHPT-APP5:/soft # vim /etc/init.d/keepalived.suse

17 DAEMON_OPT="-d "

18 DAEMON_OPT="-d -D -S 0"

5）啟動rsyslog服務

JZSHPT-APP5:/soft # /etc/init.d/syslog start

3.4．啟動Redis和Keepalived
JZSHPT-APP6:~ # /etc/init.d/redisd start

JZSHPT-APP6:~ # /etc/init.d/keepalived.suse start

測試結果可通過依次停Redis主從單節點來觀測vip漂移

SuSE11環境下Redis+Keepalived實現高可用技術

相關推薦

SuSE11環境下Redis+Keepalived實現高可用技術

keep starting pass prot x86_64 configure pid dev 修改 1．Redis配置信息Redis部署使用兩臺服務器，實現Redis+keepalived，提供redis服務高可用，當主redis進程或服務器宕機之後，備redis進程或

Redis+Keepalived實現高可用

redis腳本 itl ive page 出現 IV ping ash d+ 　　使用redis哨兵可以在主服務器出現故障的時候自動切換主從，但是從服務器的IP不同於原主服務器的IP還需要在客戶端手動修改IP才能生效 　　下面使用keepalived實現VIP自動漂移 　　

利用redis主從+keepalived實現高可用

linux 運維 redisRedis簡介： Redis是一個開源的使用ANSI C語言編寫、支持網絡、可基於內存亦可持久化的日誌型、Key-Value數據庫，並提供多種語言的API。從2010年3月15日起，Redis的開發工作由VMware主持。 redis是一個key-value存儲系統。和Memc

Redis 之 主從復制 + Keepalived 實現高可用

edi keepal images 守護 定位 process 安裝redis RoCE 進程 一、Redis 主從復制 + Keepalived 實現高可用 作用：保證Redis高可用，首先搭建Redis 主從復制，然後在主從兩臺機器上分別安裝keepalived服務，把

利用lvs+keepalived實現高可用負載均衡環境的部署

http://wangwq.blog.51cto.com/8711737/1852212 ，執行即可(注意指令碼的VIP，不同的realserver對應不同的VIP) 1 2 3 4 5 6

Keepalived+Nginx+Redis+Tomcat實現高可用web負載均衡

一、系統環境 作業系統：CentOS 7 tomcat 8.0.47 Nginx 1.12.2 Redis 4.0.2 192.168.124.128 tomcat1+Nginx+Redis 192.168.124.130 tomcat2

LVS+Keepalived實現高可用負載均衡

lvs+keepalived 高可用 負載均衡 用LVS+Keepalived實現高可用負載均衡，簡單來說就是由LVS提供負載均衡，keepalived通過對rs進行健康檢查、對主備機(director)進行故障自動切換，實現高可用。1. LVS NAT模式配置準備三臺服務器，一臺director, 兩

Keepalived實現高可用Nginx反向代理

keepalived實現高可用nginx反向代理由於好久沒有接觸過負載相關的調試了復習一下實驗系統：（1）CentOS 6.5_x86_64；（2）共有二臺主機，本實驗以ip地址來命名主機，即10主機、11主機。實驗前提：防火墻和selinux都關閉，主機之間時間同步實驗軟件：nginx-1.10.2-1.e

Linux運維學習之keepalived實現高可用集群

keepalived 高可用 lvs 集群技術是一種較新的技術，通過集群技術，可以在付出較低成本的情況下獲得在性能、可靠性、靈活性方面的相對較高的收益，其任務調度則是集群系統中的核心技術。高可用高可用集群，簡單的說，集群就是一組計算機，它們作為一個整體向用戶提供一組網絡資源。 高可用

LVS-keepalived實現高可用

keepalived前言： LVS是基於內核實現負載均衡的，在小編的上一篇演示中我們已經實現了LVS的NAT模式和DR模式，但是企業中只有負載均衡是不行的，如果一臺負載均衡器楚翔了故障，那麽就會導致整個集群的不可用，所以這裏結合LVS我們通過keepalived這個神器來實現高可用。 高可用：通常來描

mysql+proxysql+keepalived實現高可用的數據庫讀寫分離

mysql讀寫分離 主從復制 proxysql前言 為了降低一臺數據庫的IO，遠程連接數據庫的時候，可以實現讀寫分離進行調度。這裏就出現了一個單點，所以必須要做一個高可用。當然數據庫服務器也需要做主從復制。實驗結構 說明：上圖的拓撲只是整個架構中的一個小部分，其余功能的實現此圖並未規

項目實戰3—Keepalived 實現高可用

ack logs 時間 mage 通知機制 http targe not table 實現基於Keepalived高可用集群網站架構 　　環境：隨著業務的發展，網站的訪問量越來越大，網站訪問量已經從原來的1000QPS，變為3000QPS，目前業務已經通過集群LVS架

nginx+keepalived實現高可用負載均衡

其中 centos7.3 9.png IT 配置文件 bsp 是我 add nginx 環境： centos7.3虛擬機A 10.0.3.46 centos7.3虛擬機B 10.0.3.110 虛擬機A和B都需要安裝nginx和keepalived（過程省略，其中keepa

利用keepalived實現高可用nginx

keepalived 高可用nginx實驗拓撲圖（1）本次基於VMware Workstation搭建一個四臺Linux（CentOS 7.4）系統所構成的一個服務器集群，其中兩臺nginx做前端調度服務器（一臺為主機，另一臺為備機），另外兩臺作為真實的Web服務器（向外部提供http服務，這裏僅僅使用了Ce

HAproxy+Keepalived實現高可用

daemon type tom com rontab date redis start virt HAproxy+Keepalived實現高可用 說明： HA1：HAproxy+Keepalived(master) HA2：HAproxy+Keepalived(back

LVS+Keepalived實現高可用

LVS;KeepaliveLVS可以實現負載均衡，但是不能夠進行健康檢查，比如一個rs出現故障，LVS 仍然會把請求轉發給故障的rs服務器，這樣就會導致請求的無效性。keepalive 軟件可以進行健康檢查，而且能同時實現 LVS 的高可用性，解決 LVS 單點故障的問題，其實 keepalive 就是為 L

Nginx+Tomcat+Keepalived實現高可用web集群

Nginx Keepadlived Tomcat Nginx+Tomcat+Keepalived實現高可用web集群： 環境：CenOS 6.5Nginx-Master：10.10.10.128Nginx-Backup：10.10.10.129Tomcat1：10.10.10.130Tomcat2

nginx+keepalived實現高可用小型集群

MF 分享 bsp mas 1.5 構圖 type 啟動 master 1.利用keepalived實現nginx調度器高可用； 2.構建LNAMMP架構： 1) Nginx既是前端調度器，又是反向代理緩存服

Mycat 之 通過Keepalived 實現高可用

alived com -o ali vpd type gin blog process 一、系統拓撲圖 一、操作方法 參考本博客的Nginx + Keepalived 實現高可用Mycat 之 通過Keepalived 實現高可用

LVS-DR模式及lvs結合keepalived實現高可用

lvs定義 LVS的英文全稱是Linux Virtual Server，即Linux虛擬伺服器。它是我們國家的章文嵩博士開發的一個開源專案，1998年5月釋出，是中國國內最早出現的自由軟體專案之一。我們只要在server上裝了ipvsadm軟體包就可以定義ipvs規則，在linux ke