Oracle Enterprise Manager Cloud Control 12c Release 1 Installation on Oracle Linux 5.7 and 6.1

安装:
ref: http://hi.baidu.com/openj/blog/item/a833df64082f55f7f6365421.html
但是要注意：64位linux系统需要在/usr/lib64下建立libevent软连接，如：
/usr/lib64/libevent-1.4.so.2 -> /usr/lib/libevent-1.4.so.2

启动:
1. -u参数必须root帐号执行才会报错,否则会忽略,报错如下
# memcached -p 11224 -m 512 -f 1.25 -u topxxxxxx
can't find the user topxxxxxx to switch to