Berkeley DB: DbEnv::rep_set_nsites
Description: Berkeley DB: An embedded database programmatic toolkit.
Keywords: embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++

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`

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