Mysqlcluster实验1测试环境：1.1软件系统版本Gentoo3.8.13Mysql5.1.67Haproxy-1.4.241.2架构1.3主机信息hostnameNetworkinterfaceIPaddrnote主机编号Mysq..
mysql cluster
重启mysql
/etc/init.d/mysql restart
在主机3-4上
Mysql –uroot –p
Change master to
Master_host=’192.168.254.111’,
Master_port=3306,
Master_user=’copy’,
Master_password=’copy’,
Master_log_file=’mysql-bin.000005’,
Master_log_pos=’106’;
Start slave;
Show slave status;
测试
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同上，分别在1和2上创建1个数据库，看是否同步
5 安装xinetd
在主机1-6上
Emerge –av xinetd
Rc-update add xinetd default
/etc/init.d/xinetd start
在主机1-2上
Vi /etc/xinetd.d/mysqlchk
## /etc/xinetd.d/mysqlchk#service mysqlchk_write{flags= REUSEsocket_type = streamport= 9200wait= nouser= nobodyserver= /opt/mysqlchk_status.shlog_on_failure += USERIDdisable= noonly_from =192.168.254.0/24}service mysqlchk_replication{flags= REUSEsocket_type = streamport= 9201wait= nouser= nobodyserver= /opt/mysqlchk_replication.shlog_on_failure += USERIDdisable= noonly_from = 192.168.254.0/24}
在主机1上
Vi /opt/mysqlchk_status.sh
#!/bin/bashMYSQL_HOST=”localhost”MYSQL_PORT=”3306″MYSQL_USERNAME=”root”MYSQL_PASSWORD=”root”ERROR_MSG=`/usr/bin/mysql –host=$MYSQL_HOST –port=$MYSQL_PORT –user=$MYSQL_USERNAME –password=$MYSQL_PASSWORD -e “show databases;” 2>dev/null`if [ “$ERROR_MSG” != “” ]then# mysql is fine, return http 200/bin/echo -e “HTTP/1.1 200 OKrn”/bin/echo -e “Content-Type: Content-Type:textrn”/bin/echo -e “rn”/bin/echo -e “MySQL is running.rn”/bin/echo -e “rn”else#mysql is down, return http 503/bin/echo -e “HTTP/1.1 503 Service Unavailablern”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MYSQL is *down*.rn”/bin/echo -e “rn”fi
Vi /opt/mysqlchk_replication.sh
#!/bin/bashMYSQL_HOST=”localhost”MYSQL_PORT=”3306″MYSQL_USERNAME=”root”MYSQL_PASSWORD=”root”/usr/bin/mysql –host=$MYSQL_HOST –port=$MYSQL_PORT –user=$MYSQL_USERNAME –password=$MYSQL_PASSWORD -e “show slave status;” > /tmp/check_repl.txtiostat=`grep “Slave_IO_Running” /tmp/check_repl.txt | awk ‘{print $2}’`sqlstat=`grep “Slave_SQL_Running” /tmp/check_repl.txt | awk ‘{print $2}’`#echo iostat:$iostat and sqlstat:$sqlstatif [ “$iostat” = “No” ] || [ “$sqlstat” = “No” ];then#mysql is down,return http 503/bin/echo -e “HTTP/1.1 503 Service Unavailablern”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MySQL replication is *down*.rn”/bin/echo -e “rn”else#mysql is fine,return http 200/bin/echo -e “HTTP/1.1 200 OKrn”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MySQL replication is running.rn”/bin/echo -e “rn”fi
在主机2上
Vi /opt/mysqlchk_status.sh
#!/bin/bashMYSQL_HOST=”localhost”MYSQL_PORT=”3306″MYSQL_USERNAME=”root”MYSQL_PASSWORD=”root”ERROR_MSG=`/usr/bin/mysql –host=$MYSQL_HOST –port=$MYSQL_PORT –user=$MYSQL_USERNAME –password=$MYSQL_PASSWORD -e “show databases;” 2>dev/null`if [ “$ERROR_MSG” != “” ]then# mysql is fine, return http 200/bin/echo -e “HTTP/1.1 200 OKrn”/bin/echo -e “Content-Type: Content-Type:textrn”/bin/echo -e “rn”/bin/echo -e “MySQL is running.rn”/bin/echo -e “rn”else#mysql is down, return http 503/bin/echo -e “HTTP/1.1 503 Service Unavailablern”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MYSQL is *down*.rn”/bin/echo -e “rn”fi
Vi /opt/mysqlchk_replication.sh
#!/bin/bashMYSQL_HOST=”localhost”MYSQL_PORT=”3306″MYSQL_USERNAME=”root”MYSQL_PASSWORD=”root”/usr/bin/mysql –host=$MYSQL_HOST –port=$MYSQL_PORT –user=$MYSQL_USERNAME –password=$MYSQL_PASSWORD -e “show slave status;” > /tmp/check_repl.txtiostat=`grep “Slave_IO_Running” /tmp/check_repl.txt | awk ‘{print $2}’`sqlstat=`grep “Slave_SQL_Running” /tmp/check_repl.txt | awk ‘{print $2}’`#echo iostat:$iostat and sqlstat:$sqlstatif [ “$iostat” = “No” ] || [ “$sqlstat” = “No” ];then#mysql is down,return http 503/bin/echo -e “HTTP/1.1 503 Service Unavailablern”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MySQL replication is *down*.rn”/bin/echo -e “rn”else#mysql is fine,return http 200/bin/echo -e “HTTP/1.1 200 OKrn”/bin/echo -e “Content-Type: Content-Type:text/plainrn”/bin/echo -e “rn”/bin/echo -e “MySQL replication is running.rn”/bin/echo -e “rn”fi
在主机3-6上
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