實現(xiàn)思路：

將兩個redis-server作為后端，然后通過haproxy做為負(fù)載均衡器，每個redis-server的機器上配置配置一個用于健康檢查的shell，并通過xinetd將這個shell設(shè)置為服務(wù)監(jiān)聽9981端口并進行管理。

haproxy通過redis-server機器上的9981端口進行健康檢查，如果檢查失敗，就直接移除該redis-server，恢復(fù)后又自動添加

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haproxy.conf

globalmaxconn 2 # debugquietuser zhxiagroup zhxianbproc 1log 127.0.0.1 local3spread-checks 2 defaultstimeout server 3stimeout connect 3stimeout client 60stimeout http-request 3stimeout queue 3s frontend redis_readbind 192.168.187.140:52020default_backend cluster_redis backend cluster_redismode tcpoption tcpkabalance static-rroption httpchkserver redis_01 192.168.180.101:6380 weight 1 check port 9981 inter 2s rise 2 fall 1server redis_02 192.168.180.101:6381 weight 1 check port 9981 inter 2s rise 2 fall 1

PS：

check：啟用健康檢測

inter：健康檢測間隔

rise：檢測服務(wù)可用的連續(xù)次數(shù)

fall：檢測服務(wù)不可用的連續(xù)次數(shù)

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安裝xinetd，統(tǒng)一對服務(wù)進行管理與端口監(jiān)聽

chk_redis.sh

#!/bin/bash #=================================================================================== #this script just for check the redis server if it alive #author:zhxia #date:2012-08-09 #=================================================================================== redis_host=192.168.180.101 redis_port=6380 redis_client=/usr/local/bin/redis-cli result=`$redis_client -h $redis_host -p $redis_port -r 1 -i 1 'info' 2>/dev/null` if [ "$result" != "" ];thenecho -e "HTTP/1.1 200 OK\r\n"echo -e "Content-Type: Content-Type: text/plain\r\n"echo -e "\r\n"echo -e "redis is running,listening port is:${redis_port}.\r\n"echo -e "\r\n" elseecho -e "HTTP/1.1 503 Service Unavailable\r\n"echo -e "Content-Type: Content-Type: text/plain\r\n"echo -e "\r\n"echo -e "redis is down! listen port is:${redis_port}"echo -e "\r\n" fi

?/etc/xinetd.d/redischk

service redischk {flags = REUSEprotocol = tcpsocket_type = streamport = 9981wait = nouser = haozuserver = /home/haozu/bin/chk_redis.shlog_on_failure +=USERIDdisable =no }

/etc/services

# Local services redischk 9981/tcp

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轉(zhuǎn)載于:https://www.cnblogs.com/xiazh/archive/2012/11/13/2630846.html

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