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Special Forums News, Links, Events and Announcements Software Releases - RSS News Tokyo Cabinet 1.3.7 (Default branch)
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Old 09-04-2008
Tokyo Cabinet 1.3.7 (Default branch)
Tokyo Cabinet is a library of routines for managing a database. It is the successor of QDBM. Tokyo Cabinet runs very fast. For example, the time required to store 1 million records is 1.5 seconds for a hash database and 2.2 seconds for a B+ tree database. Moreover, the database size is very small. For example, the overhead for a record is 16 bytes for a hash database, and 5 bytes for a B+ tree database. Furthermore, the scalability of Tokyo Cabinet is great. The database size can be up to 8EB.License: GNU Lesser General Public License (LGPL)Changes:
Functions to count term frequency were added.Image

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LEARN ABOUT DEBIAN

tchmgr

TCHMGR(1)							   Tokyo Cabinet							 TCHMGR(1)

NAME

       tchmgr - the command line utility of the hash database API

DESCRIPTION

       The  command  `tchmgr'  is  a utility for test and debugging of the hash database API and its applications.  `path' specifies the path of a
       database file.  `bnum' specifies the number of buckets.	`apow' specifies the power of the alignment.  `fpow' specifies the  power  of  the
       free block pool.  `key' specifies the key of a record.  `value' specifies the value of a record.  `file' specifies the input file.

	      tchmgr create [-tl] [-td|-tb|-tt|-tx] path [bnum [apow [fpow]]]
		     Create a database file.
	      tchmgr inform [-nl|-nb] path
		     Print miscellaneous information to the standard output.
	      tchmgr put [-nl|-nb] [-sx] [-dk|-dc|-dai|-dad] path key value
		     Store a record.
	      tchmgr out [-nl|-nb] [-sx] path key
		     Remove a record.
	      tchmgr get [-nl|-nb] [-sx] [-px] [-pz] path key
		     Print the value of a record.
	      tchmgr list [-nl|-nb] [-m num] [-pv] [-px] [-fm str] path
		     Print keys of all records, separated by line feeds.
	      tchmgr optimize [-tl] [-td|-tb|-tt|-tx] [-tz] [-nl|-nb] [-df] path [bnum [apow [fpow]]]
		     Optimize a database file.
	      tchmgr importtsv [-nl|-nb] [-sc] path [file]
		     Store records of TSV in each line of a file.
	      tchmgr version
		     Print the version information of Tokyo Cabinet.

       Options feature the following.

	      -tl : enable the option `HDBTLARGE'.
	      -td : enable the option `HDBTDEFLATE'.
	      -tb : enable the option `HDBTBZIP'.
	      -tt : enable the option `HDBTTCBS'.
	      -tx : enable the option `HDBTEXCODEC'.
	      -nl : enable the option `HDBNOLCK'.
	      -nb : enable the option `HDBLCKNB'.
	      -sx : the input data is evaluated as a hexadecimal data string.
	      -dk : use the function `tchdbputkeep' instead of `tchdbput'.
	      -dc : use the function `tchdbputcat' instead of `tchdbput'.
	      -dai : use the function `tchdbaddint' instead of `tchdbput'.
	      -dad : use the function `tchdbadddouble' instead of `tchdbput'.
	      -px : the output data is converted into a hexadecimal data string.
	      -pz : do not append line feed at the end of the output.
	      -m num : specify the maximum number of the output.
	      -pv : print values of records also.
	      -fm str : specify the prefix of keys.
	      -tz : enable the option `UINT8_MAX'.
	      -df : perform defragmentation only.
	      -sc : normalize keys as lower cases.

       This command returns 0 on success, another on failure.

SEE ALSO

       tchtest(1), tchmttest(1), tchdb(3), tokyocabinet(3)

Man Page							    2011-02-12								 TCHMGR(1)