htdb_stat(1)htdb_stat(1)NAMEhtdb_stat-
displays statistics for Berkeley DB environments.
SYNOPSIShtdb_stat [-celmNtzW] [-C Acfhlmo] [-d file [-s file]] [-h home] [-M Ahlm]
DESCRIPTIONhtdb_stat is a slightly modified version of the standard Berkeley DB
db_stat utility which displays statistics for Berkeley DB environments.
OPTIONS-W Initialize WordContext(3) before gathering statistics. With the
-z flag allows to gather statistics on inverted indexes gener‐
ated with the mifluz(3) specific compression scheme. The
MIFLUZ_CONFIG environment variable must be set to a file con‐
taining the mifluz(3) configuration.
-z The file is compressed. If -W is given the mifluz(3) specific
compression scheme is used. Otherwise the default gzip compres‐
sion scheme is used.
-C Display internal information about the lock region. (The output
from this option is often both voluminous and meaningless, and
is intended only for debugging.)
A Display all information.
c Display lock conflict matrix.
f Display lock and object free lists.
l Display lockers within hash chains.
m Display region memory information.
o Display objects within hash chains.
-c Display lock region statistics.
-d Display database statistics for the specified database. If the
database contains subdatabases, the statistics are for the data‐
base or subdatabase specified, and not for the database as a
whole.
-e Display current environment statistics.
-h Specify a home directory for the database.
-l Display log region statistics.
-M Display internal information about the shared memory buffer
pool. (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.
l Display buffers within LRU chains.
m Display region memory information.
-m Display shared memory buffer pool statistics.
-N Do not acquire shared region locks 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.
-s Display database statistics for the specified subdatabase of the
database specified with the -d flag.
-t Display transaction region statistics.
-V Write the version number to the standard output and exit.
Only one set of statistics is displayed for each run, and the last
option specifying a set of statistics takes precedence.
Values smaller than 10 million are generally displayed without any spe‐
cial notation. Values larger than 10 million are normally displayed as
<number>M
The htdb_stat utility attaches to one or more of the Berkeley DB shared
memory regions. In order to avoid region corruption, it should always
be given the chance to detach and exit gracefully. To cause htdb_stat
to clean up after itself and exit, send it an interrupt signal (SIG‐
INT).
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.
MIFLUZ_CONFIG file name of configuration file read by WordContext(3).
Defaults to ~/.mifluz.
AUTHORS
Sleepycat Software http://www.sleepycat.com/
Loic Dachary loic@gnu.org
The Ht://Dig group http://dev.htdig.org/
SEE ALSOhtdb_dump(1), htdb_load(1), mifluzdump(1), mifluzload(1),
mifluzsearch(1), mifluzdict(1), WordContext(3), WordList(3), Word‐
Dict(3), WordListOne(3), WordKey(3), WordKeyInfo(3), WordType(3), Word‐
DBInfo(3), WordRecordInfo(3), WordRecord(3), WordReference(3), WordCur‐
sor(3), WordCursorOne(3), WordMonitor(3), Configuration(3), mifluz(3)
local htdb_stat(1)
