Problem with Cache file

[SRINIVAS K]

Hi,
        I am new guy working on BIND. I am using the bind 9.3.5-P2 for my Debian Linux.My named  not generating the file named_dump.db.I specified the path in the conf file also.When I use the debug options it not showing any error.For every same(say  xyz.com) request the it is forwarding the request to the forwarders.Please help me to find out the what is the problem.


Regards
Srinivas K.