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MAN page from CentOS 8 libdb-utils-5.3.28-36.el8.x86_64.rpm

DB_PRINTLOG

Section: BerkeleyDB Utilities (1)
Updated: 06 December 2016
Index 

NAME

db_printlog - Dumps log files into a human-readable format 

SYNOPSIS

db_printlog[-NrV] [-b start-LSN] [-e stop-LSN] [-h home] [-P password][-D bytes] 

DESCRIPTION

The db_printlog utility is a debugging utility that dumps Berkeley DB log filesin a human-readable format. 

OPTIONS

-b start-LSN
Display log records starting at log sequence number (LSN) start-LSN;start-LSN is specified as a file number, followed by a slash (/)character, followed by an offset number, with no intervening whitespace.
-D bytes
Specifies the maximum number of bytes to dump for each key/data item found in the specified database.This option is only valid when -da is also specified. This option overrides the value set forthe "set_data_len" parameter in your DB_CONFIG file, if any.
-e stop-LSN
Stop displaying log records at log sequence number (LSN) stop-LSN;stop-LSN is specified as a file number, followed by a slash (/)character, followed by an offset number, with no intervening whitespace.
-h home
Specify a home directory for the database environment; bydefault, the current working directory is used.
-N
Do not acquire shared region mutexes while running. Other problems,such as potentially fatal errors in Berkeley DB, will be ignored as well.This option is intended only for debugging errors, and should not beused under any other circumstances.
-P password
Specify an environment password. Although Berkeley DB utilities overwritepassword strings as soon as possible, be aware there may be a window ofvulnerability on systems where unprivileged users can see command-linearguments or where utilities are not able to overwrite the memorycontaining the command-line arguments.
-r
Read the log files in reverse order.
-V
Write the library version number to the standard output, and exit.

The db_printlog utility uses a Berkeley DB environment (as described for the-h option, the environment variable DB_HOME, orbecause the utility was run in a directory containing a Berkeley DBenvironment). In order to avoid environment corruption when using aBerkeley DB environment, db_printlog should always be given the chance todetach from the environment and exit gracefully. To cause db_printlogto release all environment resources and exit cleanly, send it aninterrupt signal (SIGINT). 

EXIT STATUS

The db_printlog utility exits 0 on success, and >0 if an error occurs. 

ENVIRONMENT

DB_HOME
If the -h option is not specified and the environment variableDB_HOME is set, it is used as the path of the database home, as describedin DB_ENV->open.
 

NOTES

If the application(s) that use the environment make use of the DB_ENV->set_lg_dir method,then in order for this utility to run correctly, you need a DB_CONFIG file which setsthe proper paths using the set_lg_dir configuration parameter. 

SEE ALSO

db_archive(1)db_checkpoint(1)db_deadlock(1)db_dump(1)db_hotbackup(1)db_log_verify(1)db_load(1)db_recover(1)db_replicate(1)db_stat(1)db_tuner(1)db_upgrade(1)db_verify(1)


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
EXIT STATUS
ENVIRONMENT
NOTES
SEE ALSO

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