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DB6.0_STAT(1)							 DB6.0_STAT(1)

NAME
       db6.0_stat - Display statistics for Berkeley DB environments

SYNOPSIS
       db6.0_stat -d file [-fN] [-h home] [-P password] [-s database]

       db6.0_stat  [-cEelmNrtVZ] [-C Aclop] [-h home] [-L A] [-M A] [-R A] [-P
       password]

DESCRIPTION
       The db6.0_stat utility displays statistics  for	Berkeley  DB  environ‐
       ments.

OPTIONS
       -C     Display  internal information about the locking subsystem.  (The
	      output from this option is often both  voluminous	 and  meaning‐
	      less, and is intended only for debugging.)

	      A	     Display all information.

	      c	     Display lock conflict matrix.

	      l	     Display lockers within hash chains.

	      o	     Display lock objects within hash chains.

	      p	     Display locking subsystem parameters.

       -c     Display	locking	  subsystem   statistics,   as	 described  in
	      DB_ENV->lock_stat.

       -d     Display database statistics for the specified file, as described
	      in DB->stat.

	      If  the  database contains multiple databases and the -s flag is
	      not specified, the statistics are for the internal database that
	      describes the other databases the file contains, and not for the
	      file as a whole.

       -E     Display internal information  about  the	database  environment,
	      including all configured subsystems of the database environment.
	      (The output from this option is often both voluminous and	 mean‐
	      ingless, and is intended only for debugging.)

       -e     Display  information  about  the database environment, including
	      all configured subsystems of the database environment.

       -f     Display only those database  statistics  that  can  be  acquired
	      without traversing the database.

       -h     Specify  a  home	directory  for	the  database  environment; by
	      default, the current working directory is used.

       -l     Display  logging	 subsystem   statistics,   as	described   in
	      DB_ENV->log_stat.

       -M     Display  internal information about the cache.  (The output from
	      this option is often both voluminous  and	 meaningless,  and  is
	      intended only for debugging.)

	      A	     Display all information.

	      h	     Display buffers within hash chains.

       -m     Display cache statistics, as described in DB_ENV->memp_stat.

       -N     Do not acquire shared region mutexes while running.  Other prob‐
	      lems, 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	 argu‐
	      ments.

       -R     Display  internal	 information  about the replication subsystem.
	      (The output from this option is often both voluminous and	 mean‐
	      ingless, and is intended only for debugging.)

	      A	     Display all information.

       -r     Display	  replication	  statistics,	 as    described    in
	      DB_ENV->rep_stat.

       -s     Display statistics for the specified database contained  in  the
	      file specified with the -d flag.

       -t     Display	transaction  subsystem	statistics,  as	 described  in
	      DB_ENV->txn_stat.

       -V     Write the library version number to  the	standard  output,  and
	      exit.

       -Z     Reset  the  statistics after reporting them; valid only with the
	      -C, -c, -E, -e, -L, -l, -M, -m, -R, -r, and -t options.

       Values normally displayed in quantities of bytes	 are  displayed	 as  a
       combination  of	gigabytes  (GB),  megabytes  (MB), kilobytes (KB), and
       bytes (B).  Otherwise, values smaller than  10  million	are  displayed
       without	any  special  notation,	 and values larger than 10 million are
       displayed as a number followed by "M".

       The db6.0_stat 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, db6.0_stat should always be given  the	chance
       to   detach  from  the  environment  and	 exit  gracefully.   To	 cause
       db6.0_stat to release all environment resources and exit cleanly,  send
       it an interrupt signal (SIGINT).

       The db6.0_stat 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_stat  from   Sleepycat,	by   Thijs   Kinkhorst
       <thijs@kinkhorst.com>,  for  the Debian system (but may be used by oth‐
       ers).

				28 January 2005			 DB6.0_STAT(1)
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