Berkeley DB

DbEnv::set_lg_max

						#include <db_cxx.h>
						int
						DbEnv::set_lg_max(u_int32_t lg_max);
					

Description

Set the maximum size of a single file in the log, in bytes. Because DbLsn file offsets are unsigned 4-byte values, the set value may not be larger than the maximum unsigned 4-byte value. By default, or if the value is set to 0, a size of 10MB is used. The size of the log file must be at least 4 times the size of the in-memory log buffer (see DbEnv::set_lg_bsize).

See “Log File Limits” for more information.

The DbEnv::set_lg_max interface may only be used to configure Berkeley DB before the DbEnv::open interface is called.

The DbEnv::set_lg_max method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value ...