author:skate
time:2012/07/12
双master+heartbeat实现自动切换
heartbeat主要是主机故障切换，服务故障不切换，如要服务故障切换就需要自己写脚本检测服务的状态，如果服务异常则调用heartbeat切换脚本完成切换
环境：
os：rht5.2
mysql：percona5.5
heartbeat：2.1.3
1.首先在双机上安装mysql软件
参考：http://blog.csdn.net/wyzxg/article/details/7695663
master1.skate.com的my.cnf添加如下配置
server-id = 1
log_bin=/data/mysql/binlog/master_binlog.log
binlog-do-db=skate
log_slave_updates=1
auto_increment_increment=2
auto_increment_offset=1
binlog_format=mixed
expire_logs_days=7
master2.skate.com的my.cnf添加如下配置
server-id = 2
log_bin=/data/mysql/binlog/master_binlog.log
binlog-do-db=skate
log_slave_updates=1
auto_increment_increment=2
auto_increment_offset=1
binlog_format=mixed
expire_logs_days=7
创建复制帐户
mysql>GRANT REPLICATION SLAVE ON *.* TO