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Berkeley DB: DbEnv::rep_set_nsites
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DbEnv::rep_set_nsites
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#include <db_cxx.h>
int
DbEnv::rep_set_nsites(u_int32_t nsites);
int
DbEnv::rep_get_nsites(u_int32_t *nsitesp);
Description: DbEnv::rep_set_nsites
The DbEnv::rep_set_nsites method specifies the total number of sites
in a replication group.
The DbEnv::rep_set_nsites method is typically called by applications which
use the Berkeley DB library "replication manager" support. (However, see
also the DbEnv::rep_elect man page, the description of the 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 DbEnv::rep_set_nsites method configures a database environment, not only operations
performed using the specified DbEnv handle.
The DbEnv::rep_set_nsites method may not be called before the DbEnv::rep_start method is called.
The DbEnv::rep_set_nsites method
either returns a non-zero error value
or throws an exception that encapsulates a non-zero error value on
failure, and returns 0 on success.
Parameters
nsites- An integer specifying the total number of sites in the replication
group.
Description: DbEnv::rep_get_nsites
The DbEnv::rep_get_nsites method returns the total number of sites in the replication group.
The DbEnv::rep_get_nsites method may be called at any time during the life of the
application.
The DbEnv::rep_get_nsites method
either returns a non-zero error value
or throws an exception that encapsulates a non-zero error value on
failure, and returns 0 on success.
Parameters
nsitesp- The DbEnv::rep_get_nsites method returns the
total number of sites in the replication group in nsitesp.
Class
DbEnv
See Also
Replication and Related Methods
Copyright (c) 1996,2008 Oracle. All rights reserved.