NAME
db4.7_verify - Verifies the structure databases
SYNOPSIS
db4.7_verify [-NoqV] [-h home] [-P password] file ...
DESCRIPTION
The db4.7_verify utility verifies the structure of one or more files
and the databases they contain.
OPTIONS
-h Specify a home directory for the database environment; by
default, the current working directory is used.
-o Skip the database checks for btree and duplicate sort order and
for hashing.
If the file being verified contains databases with non-default
comparison or hashing configurations, calling the db4.7_verify
utility without the -o flag will usually return failure. The -o
flag causes db4.7_verify to ignore database sort or hash
ordering and allows db4.7_verify to be used on these files. To
fully verify these files, verify them explicitly using the
DB->verify method, after configuring the correct comparison or
hashing functions.
-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 be used under any other circumstances.
-P Specify an environment password. Although Berkeley DB utilities
overwrite password strings as soon as possible, be aware there
may be a window of vulnerability on systems where unprivileged
users can see command-line arguments or where utilities are not
able to overwrite the memory containing the command-line
arguments.
-q Suppress the printing of any error descriptions, simply exit
success or failure.
-V Write the library version number to the standard output, and
exit.
The db4.7_verify utility does not perform any locking, even in Berkeley
DB environments that are configured with a locking subsystem. As such,
it should only be used on files that are not being modified by another
thread of control.
The db4.7_verify utility may be used with a Berkeley DB environment (as
described for the -h option, the environment variable DB_HOME, or
because the utility was run in a directory containing a Berkeley DB
environment). In order to avoid environment corruption when using a
Berkeley DB environment, db4.7_verify should always be given the chance
to detach from the environment and exit gracefully. To cause
db4.7_verify to release all environment resources and exit cleanly,
send it an interrupt signal (SIGINT).
The db4.7_verify utility exits 0 on success, and >0 if an error occurs.
ENVIRONMENT
DB_HOME
If the -h option is not specified and the environment variable
DB_HOME is set, it is used as the path of the database home, as
described in DB_ENV->open.
AUTHORS
Sleepycat Software, Inc. This manual page was created based on the HTML
documentation for db_verify from Sleepycat, by Thijs Kinkhorst
<thijs@kinkhorst.com>, for the Debian system (but may be used by
others).
28 January 2005