#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: