load data at server startup - is ap_hook_post_config() the right place?

[Danie Qian]

I am new to module development but I want to develop a module so I can 
manage the uri of the thousand of sites more efficiently. What I want is to 
load a mysql table data into the memory of Apache server at its startup 
stage for fast processing of requests later. Mysql database access 
information will be set with configuration directives. My question is:
1. Is ap_hook_post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t 
*ptemp, server_rec *s)  the right place to load the table?
2. If it is, how can the hook functions access the data after it is loaded 
presumably in apr_pool_t *p?

Thanks,
Daniel