DbEnv::set_lg_bsize

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#include <db_cxx.h>

int DbEnv::set_lg_bsize(u_int32_t lg_bsize);

Description

Set the size of the in-memory log buffer, in bytes.

Log information is stored in-memory until the storage space fills up or transaction commit forces the information to be flushed to stable storage. In the presence of long-running transactions or transactions producing large amounts of data, larger buffer sizes can increase throughput.

By default, or if the value is set to 0, a size of 32K is used.

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

The DbEnv::set_lg_bsize 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.

Errors

EINVAL
An invalid flag value or parameter was specified.

Called after DbEnv::open was called.

Class

DbEnv

See Also

DbEnv::set_lg_bsize, DbEnv::set_lg_max, DbEnv::log_archive, DbEnv::log_compare, DbEnv::log_file, DbEnv::log_flush, DbEnv::log_get, DbEnv::log_put, DbEnv::log_register, DbEnv::log_stat and DbEnv::log_unregister.

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