cacti太灵活了,一灵活也挺麻烦的,各种监控模版质量和功能各不一样.
我选的模版,觉得够用,也省事，不过没找到resin haproxy的。另外就是没找到如何批量导入一批机器到cacti...一个一个录入...神...
mysql模版
http://mysql-cacti-templates.googlecode.com/files/mysql-cacti-templates-1.1.2.tar.gz
监控种类巨详细,另外可以自定义端口号,导入模版后,在data template选择导入的mysql模版，将host username passwd勾选一下，这样添加图的时候就可以输入要监控的自定义端口。这个模版还默认带了apache linux nginx memcached的模版可供选择,不过我觉得除了mysql的其他配置起来都不那么容易...我自己觉得是。
X InnoDB Buffer Pool Activity GT
X InnoDB Buffer Pool GT
X InnoDB I/O GT
X InnoDB I/O Pending GT
X InnoDB Insert Buffer GT

X InnoDB Log GT
X InnoDB Row Operations GT
X InnoDB Semaphores GT
X InnoDB Transactions GT
X MyISAM Indexes GT
X MySQL Binary/Relay Logs GT
X MySQL Command Counters GT
X MySQL Connections GT
X MySQL Files and Tables GT

X MySQL Handlers GT
X MySQL Network Traffic GT
X MySQL Processlist GT
X MySQL Query Cache GT
X MySQL Query Cache Memory GT
X MySQL Replication GT
X MySQL Select Types GT
X MySQL Sorts GT
X MySQL Table Locks GT

X MySQL Temporary Objects GT
X MySQL Threads GT
X MySQL Transaction Handler GT

memcached模版
http://tag1consulting.com/files/cacti-memcached-1.0.2.tar.bz2
支持自定义端口和主机,这个很重要,网上的一些模版只能默认11211,不过脚本是python的需要下载memcached的python client api安装.
监控种类
Memcached - Bytes Used
Memcached - Cache Hits 
Memcached - Current Connections
Memcached - Items Cached
Memcached - Network Traffic
Memcached - Requests

nginx
http://www.oschina.net/discuss/thread/279
直接输入nginx status完整地址就可以,方便,可以反映nginx reading writing accept request waiting等参数
图监控的种类就2种,但内容全了
Nginx Clients Stat
Nginx Sockets Stat

apache
http://forums.cacti.net/about25227.html&highlight=apachestats
输入主机地址,URL是固定的.
种类:
ApacheStats08 - CPU Load ApacheStats08  
ApacheStats08 - Threads ApacheStats08
ApacheStats08 - Total Hits ApacheStats08 
ApacheStats08 - Total kBytes