#include <db.h>

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.



An integer specifying the total number of sites in the replication group.


The DB_ENV->rep_set_nsites() method may fail and return one of the following non-zero errors:


If master leases are in use and replication has already been started; or if an invalid flag value or parameter was specified.



See Also

Replication and Related Methods