错误一：
[root@snale2 ha.d 11:55:37]#service heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Heartbeat failure [rc=6]. Failed.
heartbeat: udpport setting must precede media statementsheartbeat[2299]: 2016/10/18_11:55:43 ERROR: Client child command [/usr/lib/heartbeat/ipfail] is not executable
heartbeat[2299]: 2016/10/18_11:55:43 ERROR: Heartbeat not started: configuration error.
heartbeat[2299]: 2016/10/18_11:55:43 ERROR: Configuration error, heartbeat not started.
解决办法：
vim /etc/ha.d/ha.cf
将 respawn hacluster /usr/lib/heartbeat/ipfail 改成 respawn hacluster /usr/lib64/heartbeat/ipfail //系统是64位的，所以路径应该在/usr/lib64/目录
错误二：
[root@snale2 ha.d 12:01:03]#service heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Heartbeat failure [rc=6]. Failed.
heartbeat: udpport setting must precede media statementsheartbeat[2464]: 2016/10/18_12:01:59 ERROR: Missing auth directive in keyfile [/etc/ha.d//authkeys]
heartbeat[2464]: 2016/10/18_12:01:59 ERROR: Authentication configuration error.
heartbeat[2464]: 2016/10/18_12:01:59 ERROR: Configuration error, heartbeat not started.
解决办法:
vim /etc/ha.d/authkeys
3 md5 Hello!
改成
auth 3
3 md5 Hello!
错误三：
[root@snale2 ha.d 13:44:32]#service heartbeat start
Starting High-Availability services: INFO: Resource is stopped
Heartbeat failure [rc=6]. Failed.
heartbeat: udpport setting must precede media statementsheartbeat: baudrate setting must precede media statementsheartbeat[2641]: 2016/10/18_13:44:36 info: Pacemaker support: false
heartbeat[2641]: 2016/10/18_13:44:36 ERROR: Current node [snale2.localdomain] not in configuration!
heartbeat[2641]: 2016/10/18_13:44:36 info: By default, cluster nodes are named by `uname -n` and must be declared with a 'node' directive in the ha.cf file.
heartbeat[2641]: 2016/10/18_13:44:36 info: See also: http://linux-ha.org/wiki/Ha.cf#node_directive
heartbeat[2641]: 2016/10/18_13:44:36 WARN: Logging daemon is disabled --enabling logging daemon is recommended
heartbeat[2641]: 2016/10/18_13:44:36 ERROR: Configuration error, heartbeat not started.
错误原因：在ha.cf配置中 node snale2 与 uname -n 得出的结果snale2.localdomain不一致，改成一直即可。