linux 系统维护及程序管理

用mysqldump   -uroot   -p1234   --opt   --compatible=mysql40  testdb > |gzip  testdb.sql.gz
        --compatible=name参数描述如下：  
  
      --compatible=name       Change   the   dump   to   be   compatible   with   a   given   mode.   By  
                                              default   tables   are   dumped   in   a   format   optimized   for  
                                              MySQL.   Legal   modes   are:   ansi,   mysql323,   mysql40,  
                                              postgresql,   oracle,   mssql,   db2,   maxdb,   no_key_options,  
                                              no_table_options,   no_field_options.   One   can   use   several  
                                              modes   separated   by   commas.   Note:   Requires   MySQL   server  
                                              version   4.1.0   or   higher.   This   option   is   ignored   with  
                                              earlier   server   versions.  

导出:
mysqldump -uroot -ppassword  database | bzip2 > db.sql.bz2
导入:
bunzip2 < db.sql.bz2 | mysql -uroot -ppassword database

tar zxf ipvsadm-1.24.tar.gz
cd ipvsadm-1.24/
make
make install

tar zxf libnet-1.1.2.1.tar.gz
cd libnet
./configure
make
make install

tar zxf MailTools-2.04.tar.gz
cd MailTools-2.04
perl Makefile.PL
make
make test
make install

tar jxf Heartbeat-STABLE-2-1-STABLE-2.1.4.tar.bz2
cd Heartbeat-STABLE-2-1-STABLE-2.1.4
./ConfigureMe configure
make
make install

debugfile /var/log/ha-debug
logfile /var/log/ha-log                             日志文件的路径
logfacility local0
keepalive 2                                         心跳检测的平率为2秒一次      
deadtime 30                                         如果30秒内没有相应心跳就做切换
warntime 10                                         指明心跳的延时为10秒做警告记录一条日志，没有其他动作
initdead 120                                        这个值设置成deadtime的两倍就可以了
udpport 694                                         数据通信的端口
bcast eth1                              eth1为心跳工作接口
ucast eth1 192.168.1.3                              检测对端心跳接口的地址
auto_failback on                                    当主节点回复后，自动切换
node    lvs_master                                  主控机计算机名 //主控机的在前面
node lvs_backup                                  备用机计算机名 //备用机的在后面
ping 172.16.6.254                                   检测网络是否正常，可以设置成网关地址
respawn root /usr/lib/heartbeat/ipfail              ipfail文件的路径
apiauth ipfail gid=root uid=root                    启用ipfail进程的用户是root

lvs_master 172.16.6.250  ipvs ldirectord

#！/bin/sh
VIP=192.168.0.210
RIP1=192.168.0.175
RIP2=192.168.0.145
. /etc/rc.d/init.d/functions
        case "$1" in
        start)
        echo "start LVS of DirectorServer"
        #Set the Virtual IP Address
        /sbin/ifconfig eth0:1 $VIP broadcast $VIP netmask 255.255.255.255 up
        /sbin/route add -host $VIP dev eth0:1
        #Clear IPVS Table
        /sbin/ipvsadm -C
        #Set Lvs
        /sbin/ipvsadm -A -t $VIP:80 -s rr
        /sbin/ipvsadm -a -t $VIP:80 -r $RIP1:80 -g
        /sbin/ipvsadm -a -t $VIP:80 -r $RIP2:80 -g
        #Run Lvs
        /sbin/ipvsadm
        ;;
        stop)
        echo "close LVS Directorserver"
        /sbin/ipvsadm -C
        /sbin/ifconfig eth0:1 down
        ;;
        *)
        echo "Usage： $0 {start|stop}"
        exit 1
        esac