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MDB_STAT(1)		     General Commands Manual		     MDB_STAT(1)

NAME
     mdb_stat - LMDB environment status tool

SYNOPSIS
     mdb_stat [-V] [-e] [-f[f[f]]] [-n] [-r[r]] [-a | -s subdb]  envpath

DESCRIPTION
     The mdb_stat utility displays the status of an LMDB environment.

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

     -e     Display information about the database environment.

     -f     Display  information  about  the  environment  freelist.   If -ff is
	    given, summarize each freelist entry.  If -fff is given, display the
	    full list of page IDs in the freelist.

     -n     Display the status of an LMDB database which does not use  subdirec-
	    tories.

     -r     Display  information  about the environment reader table.  Shows the
	    process ID, thread ID, and transaction ID  for  each  active  reader
	    slot.  The	process ID and transaction ID are in decimal, the thread
	    ID is in hexadecimal. The transaction ID is displayed as "-" if  the
	    reader  does  not currently have a read transaction open.  If -rr is
	    given, check for stale entries in the reader table and  clear  them.
	    The reader table will be printed again after the check is performed.

     -a     Display the status of all of the subdatabases in the environment.

     -s subdb
	    Display the status of a specific subdatabase.

DIAGNOSTICS
     Exit  status  is zero if no errors occur.	Errors result in a non-zero exit
     status and a diagnostic message being written to standard error.

SEE ALSO
     mdb_copy(1)

AUTHOR
     Howard Chu of Symas Corporation <http://www.symas.com>

LMDB 0.9.17			   2015/09/30			     MDB_STAT(1)

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