#include <db.h> int DB_ENV->rep_set_nsites(DB_ENV *env, u_int32_t nsites);
         The DB_ENV->rep_set_nsites() method specifies the total number of
         sites in a replication group.
    
         The DB_ENV->rep_set_nsites() method is typically called by
         Replication Manager applications.  (However, see also the 
         DB_ENV->rep_elect() method
         nsites
         parameter.)
    
The database environment's replication subsystem may also be configured using the environment's DB_CONFIG file. The syntax of the entry in that file is a single line with the string "rep_set_nsites", one or more whitespace characters, and the number of sites specified. For example, "rep_set_nsites 5" sets the number of sites to 5. Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.
         The DB_ENV->rep_set_nsites() method configures a database
         environment, not only operations performed using the specified 
         DB_ENV  handle.
    
         If master leases are in use, the DB_ENV->rep_set_nsites() method
         may not be called after the DB_ENV->rep_start() or
         DB_ENV->repmgr_start() methods
         are called. If master leases are not in use, the
         DB_ENV->rep_set_nsites() method may be
         called at any time during the life of the application.
    
         The DB_ENV->rep_set_nsites() 
            
                  method returns a non-zero error value on failure and 0 on success.
            
            
        
    
                         The DB_ENV->rep_set_nsites() 
            
                 method may fail and return one of the following non-zero errors: