db_verify(1) - phpMan

DB_VERIFY(1)                           BerkeleyDB Utilities                          DB_VERIFY(1)



NAME
       db_verify -  Verify the database structure

SYNOPSIS
       db_verify [-NoqV] [-h home] [-P password] file ...

DESCRIPTION
       The  db_verify  utility verifies the structure of one or more files and the databases they
       contain.

OPTIONS
       -h home
              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 hash-
              ing configurations, calling the db_verify utility without the -o flag will  usually
              return  failure.   The  -o  flag  causes  db_verify to ignore database sort or hash
              ordering and allows db_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 poten-
              tially  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  circum-
              stances.

       -P password
              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 db_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 db_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, db_verify should always be given the chance to detach
       from the environment and exit gracefully.  To cause db_verify to release  all  environment
       resources and exit cleanly, send it an interrupt signal (SIGINT).

EXIT STATUS
       The db_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.

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_printlog(1)    db_recover(1)   db_replicate(1)   db_stat(1)   db_tuner(1)
       db_upgrade(1)



BerkeleyDB 5.3.21                        06 December 2016                            DB_VERIFY(1)

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