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===== lvs構築 ～2013/01/24～ =====

  * その他のライブラリインストール
<code>
# yum -y install openssl-devel
</code>

  * ダウンロード
<code>
# cd /usr/src/redhat/SOURCES/
# wget http://www.keepalived.org/software/keepalived-1.2.7.tar.gz
</code>

  * 解凍
<code>
# tar xzvf keepalived-1.2.7.tar.gz 
# cd keepalived-1.2.7
</code>

  * specファイル編集
<code>
# vi keepalived.spec

-) #Version: 1.2.2
+) Version: 1.2.7
</code>

  * configure
<code>
# ./configure 
</code>

  * rpmbuild
<code>
# rpmbuild -ba keepalived.spec
</code>

  * インストール
<code>
# cd /usr/src/redhat/RPMS/x86_64/
# rpm -ivh keepalived-1.2.7-5.x86_64.rpm 
# rpm -qs keepalived
</code>

  * 設定
<code>
# cp /etc/keepalived/keepalived.conf /etc/keepalived/keepalived.conf.org
# vi /etc/keepalived/keepalived.conf
</code>

<code>
! Configuration File for keepalived

global_defs {
   notification_email {
     sendmail@mail.com
   }
   notification_email_from keepalived@mail.com
   smtp_server localhost
   smtp_connect_timeout 30
   router_id LVS_DEVEL
}

vrrp_instance VI_MYSQL {
    state BACKUP
    interface eth0
    virtual_router_id 51
    priority 100
    nopreemt
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
        192.168.26.199
    }
}


virtual_server 127.0.0.1 3306 {
    delay_loop 5
    lb_algo rr
    lb_kind DR
    protocol TCP
    real_server 192.168.26.146 3306 {
        weight 10
        TCP_CHECK {
            connect_port 3306
            connect_timeout 30
        }
        notify_down "/etc/keepalived/shutdown.sh"
    }
}
</code>

<code>
# vi /etc/keepalived/shutdown.sh
</code>

<code>
#!/bin/bash
QUERY="show status;"
sleep 5

mysqlans=`mysql -uroot -ppass -h 127.0.0.1 -e$QUERY | grep Bytes_received `

if [ "" = "$mysqlans" ]; then
    /etc/rc.d/init.d/mysqld stop
    /etc/rc.d/init.d/keepalived stop
fi
</code>

<code>
# chmod 755 /etc/keepalived/shutdown.sh
</code>

<code>
# /etc/init.d/keepalived start
# ip addr show
</code>