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DbEnv::set_verbose

APIRef

#include <db_cxx.h>

int DbEnv::set_verbose(u_int32_t which, int onoff);

Description

The DbEnv::set_verbose method turns additional informational and debugging messages in the Berkeley DB message output on and off. If onoff is set to non-zero, the additional messages are output.

The which parameter must be set to one of the following values:

DB_VERB_CHKPOINT
Display checkpoint location information when searching the log for checkpoints.

DB_VERB_DEADLOCK
Display additional information when doing deadlock detection.

DB_VERB_RECOVERY
Display additional information when performing recovery.

DB_VERB_WAITSFOR
Display the waits-for table when doing deadlock detection.

The DbEnv::set_verbose interface may be used to configure Berkeley DB at any time during the life of the application.

The DbEnv::set_verbose 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.

The database environment's verbosity may also be set using the environment's DB_CONFIG file. The syntax of the entry in that file is a single line with the string "set_verbose", one or more whitespace characters, and the interface which argument as a string; for example, "set_verbose DB_VERB_CHKPOINT". Because the DB_CONFIG file is read when the database environment is opened, it will silently overrule configuration done before that time.

Errors

The DbEnv::set_verbose method may fail and throw an exception or return a non-zero error for the following conditions:

EINVAL
An invalid flag value or parameter was specified.

The DbEnv::set_verbose method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the DbEnv::set_verbose method may fail and either return DB_RUNRECOVERY or throw an exception encapsulating DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way.

Class

DbEnv

See Also

DbEnv::close, DbEnv::err, DbEnv::errx DbEnv::open, DbEnv::remove, DbEnv::set_alloc, DbEnv::set_cachesize, DbEnv::set_data_dir, DbEnv::set_errcall, DbEnv::set_errfile, DbEnv::set_error_stream, DbEnv::set_errpfx, DbEnv::set_feedback, DbEnv::set_flags, DbEnv::set_mutexlocks, DbEnv::set_pageyield, DbEnv::set_paniccall, DbEnv::set_panicstate, DbEnv::set_recovery_init, DbEnv::set_rpc_server, DbEnv::set_region_init, DbEnv::set_shm_key, DbEnv::set_tas_spins, DbEnv::set_tmp_dir, DbEnv::set_verbose, DbEnv::strerror and DbEnv::version.

APIRef

Copyright Sleepycat Software @ 1.1 log @Initial revision @ text @d1 1 a1 1 @ 1.1.1.1 log @Import: RPM 4.0.3 @ text @@ 1.1.1.2 log @Import: RPM 4.0.4 @ text @d1 1 a1 1 d17 1 a17 1 APIRef a38 1

DB_VERB_REPLICATION
Display additional information when processing replication messages. d78 2 d81 1 d84 1 a87 1 DbEnv::set_timeout, d94 1 a94 1 APIRef @ 1.1.1.3 log @Import: RPM 4.0.5 @ text @d1 2 a2 2 a3 1 d42 2 a43 5

The DbEnv::set_verbose method configures operations performed using the specified DbEnv handle, not all operations performed on the underlying database environment.

The DbEnv::set_verbose interface may be called at any time during the life of the application. d59 4 a62 4 If a catastrophic error has occurred, the DbEnv::set_verbose method may fail and either return DB_RUNRECOVERY or throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d64 1 a64 1 DbEnv d66 24 a89 1 Database Environments and Related Methods @ 1.1.1.4 log @Import: RPM 4.1 @ text @d1 2 a2 2 d4 1 d43 5 a47 2

The DbEnv::set_verbose interface may be used to configure Berkeley DB at any time during the life of the application. d63 4 a66 4 If a catastrophic error has occurred, the DbEnv::set_verbose method may fail and either return DB_RUNRECOVERY or throw an exception encapsulating DB_RUNRECOVERY, in which case all subsequent Berkeley DB calls will fail in the same way. d68 1 a68 1 DbEnv d70 1 a70 24 DbEnv::close, DbEnv::err, DbEnv::errx DbEnv::open, DbEnv::remove, DbEnv::set_alloc, DbEnv::set_cachesize, DbEnv::set_data_dir, DbEnv::set_errcall, DbEnv::set_errfile, DbEnv::set_error_stream, DbEnv::set_errpfx, DbEnv::set_feedback, DbEnv::set_flags, DbEnv::set_paniccall, DbEnv::set_recovery_init, DbEnv::set_rpc_server, DbEnv::set_shm_key, DbEnv::set_tas_spins, DbEnv::set_tmp_dir, DbEnv::set_timeout, DbEnv::set_verbose, DbEnv::strerror and DbEnv::version. @ 1.1.1.5 log @Import: RPM 4.1.1 @ text @d1 2 a2 2 a3 1 d42 2 a43 5

The DbEnv::set_verbose method configures operations performed using the specified DbEnv handle, not all operations performed on the underlying database environment.

The DbEnv::set_verbose interface may be called at any time during the life of the application. d59 4 a62 4 If a catastrophic error has occurred, the DbEnv::set_verbose method may fail and either return DB_RUNRECOVERY or throw a DbRunRecoveryException, in which case all subsequent Berkeley DB calls will fail in the same way. d64 1 a64 1 DbEnv d66 24 a89 1 Database Environments and Related Methods @