mdbm_create

SYNOPSIS

mdbm_create [-23LNz] [-a record-alignment] [-c cache-mode] [-d mbytes] [-h hash-function] [-l spill-size] [-m int] [-p bytes] [-s mbytes] mdbm

DESCRIPTION

mdbm_create creates a new MDBM according to the specified options.

OPTIONS

-2	Create v2 format mdbm.
-3	[Default] Create v3 format mdbm.
-a record-alignment
	Record Alignment Description 8 1-byte alignment 16 2 byte alignment 32 3 byte alignment 64 4 byte alignment
-c cache-mode	Cache-Mode Description 1 LFU: least frequently used 2 LRU: least recently used 3 GDSF: greedy dual size frequency The default is not to enable cache mode.
-d mbytes	Specify initial size of db (default: minimum). Suffix k/m/g may be used to override default of m.
-h hash-function
	Create DB using hash function hash-function. hash-function Description 0 CRC-32 1 EJB 2 PHONG 3 OZ 4 TOREK 5 FNV32 [Default] 6 STL 7 MD5 8 SHA-1 9 Jenkins 10 Hsieh SuperFast hash-function for MDBM V2 are 0-9 only.
-L	Enable large-object mode
-l spill-size	Set the number of spill size bytes for data to be put on large-object heap. Large objects must be enabled with the -L option for this option to be applicable. The default is 75% of the page size.
-m int	File permissions (default: 0666).
-p bytes	Specify size of main db (remainder is large-object/overflow space). Suffix k/m/g may be used to override default of m.
-s mbytes	Truncate db if it already exists.

RETURN VALUE

Returns 0 upon success, non-zero upon failure.

EXAMPLES

Create an MDBM with an initial size of 2GB:

mdbm_create -p 2g /tmp/bar.mdbm

SEE ALSO

mdbm_check(1), mdbm_compare(1), mdbm_copy(1), mdbm_create(1), mdbm_digest(1), mdbm_dump(1), mdbm_export(1), mdbm_fetch(1), mdbm_import(1), mdbm_purge(1), mdbm_replace(1), mdbm_restore(1), mdbm_save(1), mdbm_stat(1), mdbm_sync(1), mdbm_trunc(1)

CONTACT

mdbm-users <mdbm-users@yahoo-inc.com>