mysql heartbeat lvs_CentOS 6.3 Mysql+heartbeat+drbd+LVS 的安装和配置(2)

yum install resource-agents pacemaker

12. 修改heartbeat配置文件(以下步骤需要在2台node上执行)

复制配置文件,资源文件,认证密钥文件

cp /usr/share/doc/heartbeat-3.0.4/ha.cf /etc/ha.d/

cp /usr/share/doc/heartbeat-3.0.4/haresources /etc/ha.d/

cp /usr/share/doc/heartbeat-3.0.4/authkeys /etc/ha.d/

之后编辑配置文件。

vi /etc/ha.d/ha.cf

logfile /var/log/ha-log (主要检查日志文件)

logfacility local0

keepalive 1 #定义心跳频率1s

deadtime 10 #如果其他节点10S内没有回应，则确认其死亡

warntime 5 #确认一个节点连接不上5S之后将警告信息写入日志

initdead 60 #在其他节点死掉之后，系统启动前需要等待的时间，一般为deadtime的两倍

udpport 694 #端口号。

ucast eth0 192.168.135.129(对端IP) #对端的IP,在备机上改为192.168.135.130(本机IP)

auto_failback off

node web1 (IP)

node web2 (IP)

chmod 600 /etc/ha.d/authkeys

vi /etc/ha.d/authkeys

auth 1

1 crc

vi /etc/ha.d/haresources

web1 IPaddr::192.168.135.0/24/eth1 drbddisk::r0 Filesystem::/dev/drbd1::/drbd::ext3 httpd

资源文件说明：

test1– the hosname that will be the primary node

drbddisk::r0 – activate the r0 resource disk (make sure r0 corresponds to whatever your resource is named)

Filesystem::/dev/drbd1::/drbd::ext3 – mount /dev/drbd1 on /drbd as ext3 filesystem

nginx–the service we’re going to watch over and take care of, in this case nginx(which wasn’t really what I was configuring, but it’s the easiest to show as an example)

安装Keepalived

yum install keepalived 当然我说的是yum 安装，也可以去官网 http://www.keepalived.org/software/

找到你所需要的版本。

[root@web1 ~]# keepalived --help Keepalived v1.2.7 (02/21,2013) Usage: keepalived keepalived -n keepalived -f keepalived.conf keepalived -d keepalived -h keepalived -v Commands: Either long or short options are allowed. keepalived --vrrp -P Only run with VRRP subsystem. keepalived --check -C Only run with Health-checker subsystem. keepalived --dont-release-vrrp -V Dont remove VRRP VIPs & VROUTEs on daemon stop. keepalived --dont-release-ipvs -I Dont remove IPVS topology on daemon stop. keepalived --dont-fork -n Dont fork the daemon process. keepalived --use-file -f Use the specified configuration file. Default is /etc/keepalived/keepalived.conf. keepalived --dump-conf -d Dump the configuration data. keepalived --log-console -l Log message to local console. keepalived --log-detail -D Detailed log messages. keepalived --log-facility -S 0-7 Set syslog facility to LOG_LOCAL[0-7]. (default=LOG_DAEMON) keepalived --snmp -x Enable SNMP subsystem keepalived --help -h Display this short inlined help screen. keepalived --version -v Display the version number keepalived --pid -p pidfile keepalived --checkers_pid -c checkers pidfile keepalived --vrrp_pid -r vrrp pidfile

安装 lvs

可伸缩网络服务的几种结构，它们都需要一个前端的负载调度器(或者多个进行主从备份)。我们先分析实现虚拟网络服务的主要技术，指出IP负载均衡技术是在负载调度器的实现技术中效率最高的。在已有的IP负载均衡技术中，主要有通过网络地址转换(Network Address Translation)将一组服务器构成一个高性能的、高可用的虚拟服务器，我们称之为VS/NAT技术(Virtual Server via Network Address Translation)。在分析VS/NAT的缺点和网络服务的非对称性的基础上，我们提出了通过IP隧道实现虚拟服务器的方法VS/TUN (Virtual Server via IP Tunneling)，和通过直接路由实现虚拟服务器的方法VS/DR(Virtual Server via Direct Routing)，它们可以极大地提高系统的伸缩性。VS/NAT、VS/TUN和VS/DR技术是LVS集群中实现的三种IP负载均衡技术。

yum install lpvsadm

[root@web1 ~]# ipvsadm --help

ipvsadm v1.25 2008/5/15 (compiled with popt and IPVS v1.2.1)

Usage:

ipvsadm -A|E -t|u|f service-address [-s scheduler] [-p [timeout]] [-M netmask]

ipvsadm -D -t|u|f service-address

ipvsadm -C

ipvsadm -R

ipvsadm -S [-n]

ipvsadm -a|e -t|u|f service-address -r server-address [options]

ipvsadm -d -t|u|f service-address -r server-address

ipvsadm -L|l [options]