apache tomcat connector
 

is there any other connector apart from mod_jk , My boss said its very buggy and we must use mod_proxy_ajp.so ?

is there any documention for configuring this ?

there is plenty of documentation, did you try searching for some?? http://tomcat.apache.org/tomcat-6.0-doc/config/ajp.html

Personally I tend to just use mod_proxy directly, without HTTP, no additional protocols.